Method of forming 3d microstructures of engraving patter in functional layer of intaglio printing die functional layer at computer-aided engraving hardware-software complex

FIELD: process engineering.

SUBSTANCE: proposed method comprises two stages of machining, at least, one 3D microstructure by cutting to remove functional layer of said microstructure. At first stage, cutting is made by high-speed milling. Note here that conical milling cutter is used to remove main part of functional layer material with allowance for finishing retained. At second stage, machined surface is subjected to single or twofold indenting. Note that functional layer material is removed with the help of polyhedral, primarily, trihedral pyramidal cutting tool, every side of which making tool front surface, while tool replacement is carried pout automatically. Said finishing is made in one pass along the microstructure contour by planning at second stage. Note here that first and second stages are performed by aforesaid one tool.

EFFECT: better milling performances.

6 cl, 10 dwg

 

The invention relates to a wide range of areas of modern machinery, industrial implementation object which is associated with the use of micro - and/or nanometer technology. In particular, the invention can be used for automated formation of submicron structures of the topography of the functional layers of highly protected from unauthorized reproduction (forgery) metallographic print forms (cliche)that are used in the production of various types of securities (requiring a high degree of protection against forgery), as well as in other areas of technology to obtain a raster image (topography) of a given configuration and depth with sub-micron resolution structures of the picture raster.

Modern level of production of various types of securities and their quality is characterized by including a degree of protection against unauthorized reproduction. Currently, there are various technologies of formation of the protective elements on the securities, including: prepress, printing and finishing. The simplest and most technologically available are printed security features, since their formation in the securities is made simultaneously with the implementation of the printing process, in particular metallographic. Consequently, these protective when the Naki must be formed directly on the printed form and optimally, that they were formed simultaneously with the formation of threedimensional microstructures picture of the engraving of the printing form, in particular metallographic. This requires the development and use of new technological processes for the production of printing forms, one of which is disclosed in the present invention.

The prior art method of forming a threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, according to which implementing a two-stage processing at least one generated by volume of the microstructure using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure (publication application no PCT/RU01/00533, 2002).

The disadvantages of this known from the prior art method include relatively low technological capabilities, since this known technology does not provide for the possibility of the formation of any additional (e.g., software-implemented) security features directly into the technological process of manufacturing of metallographic printing form.

The technical result of the claimed invention (in respect of all options for the implementation of the FPIC of the BA) is the extension of functionality due to the provision of additional protective features (in addition to the pattern prints) simultaneously with the process of forming the volume specialized structures of figure prints in the functional layer of metallographic printing form.

The technical result according to the first variant of the invention (claim 1 of the formula) is achieved by the fact that in the method of formation of threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, according to which implementing a two-stage processing at least one generated by volume of the microstructure using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, according to the invention the first stage of processing carried out by the operation of high-speed milling, which uses cutting tool in the form of cutters, mostly conical; thus, at this stage make a selection of the main part of the volume of the removed material mentioned functional layer inside the loop formed by the microstructure can be saved allowance for subsequent processing of this circuit; in the second stage, the single indentation method is formed on the first stage of sampling within the mentioned allowance, used planing cutter in the form of mnogoge is Noah, mostly triangular, truncated pyramid, each face of which depending on the direction of cutting is functionally the front surface of the cutter; and the change of the cutting tool when this process is carried out in automatic mode.

The technical result according to the second variant of the invention (claim 2 of the formula) is achieved by the fact that in the method of formation of threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, according to which implementing a two-stage processing at least one generated by volume of the microstructure using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, according to the invention the first stage of processing carried out by the operation of high-speed milling, which uses cutting tool in the form of cutters, mostly conical; thus, at this stage make a selection of the main part of the volume of the removed material mentioned functional layer inside the loop formed by the microstructure can be saved allowance for subsequent processing of this circuit; in the second this is e carrying out the process at least two indentation method is formed on the first stage of sampling within the mentioned allowance; use planing cutter in the form of a multi-faceted, mostly triangular, truncated pyramid, each face of which depending on the direction of cutting is functionally the front surface of the cutter; and with each repeated indentation are derived shall turn the cutter around its axis on the technologically given angle, and the change of the cutting tool when this process is carried out in automatic mode.

The technical result according to the third variant of the invention (claim 3 of the formula) is achieved by the fact that in the method of formation of threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, according to which implementing a two-stage processing at least two consecutive generated threedimensional microstructures using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, according to the invention the first stage of processing carried out by the operation of high-speed milling, for which COI is lsout cutting tool in the form of cutters, mainly conical; thus, at this stage consistently make a selection of the main part of the volume of the removed material mentioned functional layer within the outline of each of the formed microstructures can be saved allowance for subsequent processing of this circuit; in the second stage, the process of sequential single indentation method each formed in the first stage of sampling within the mentioned allowance; use planing cutter in the form of a multi-faceted, mostly triangular, truncated pyramid, each face of which depending on the direction of cutting is functionally the front surface of the cutter; and the indentation are derived each subsequent sampling shall turn the cutter around its axis on technologically certain angle relative to the his previous position, and the change of the cutting tool when this process is carried out in automatic mode.

The technical result according to the fourth variant of the invention (claim 4 of the formula) is achieved by the fact that in the method of formation of threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, whereby done is make a two-stage processing, at least one of the formed volume of the microstructure using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, according to the invention the first stage of processing carried out by the operation of high-speed milling, which as a cutting tool using a planing cutter in the form of a multi-faceted, mostly triangular, pyramid, each face of which depending on the direction of cutting is functionally the front surface of the cutter; and at this stage make a selection of the main part of the volume of the removed material mentioned functional layer inside the loop formed by the microstructure can be saved allowance, including the depth of the sample on subsequent processing of the surface of the sample; in the second stage, the single indentation method is formed on the first stage of sampling within the mentioned allowance used is the same as in the first stage, the cutting tool as mentioned planing cutter.

The technical result according to the fifth variant of the invention (claim 5 of the formula) is achieved by the fact that in the method of formation of threedimensional microstructures of figure prints in function is optional layer of metallographic form on automated engraving software and hardware complex, whereby carry out a two-stage processing at least one generated by volume of the microstructure using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, according to the invention the first stage of processing carried out by the operation of high-speed milling, which as a cutting tool using a planing cutter in the form of a multi-faceted, mostly triangular, pyramid, each face of which depending on the direction of cutting is functionally the front surface of the cutter; and at this stage make a selection of the main part of the volume of the removed material mentioned functional layer inside the loop formed by the microstructure can be saved allowance, including the depth of the sample, the subsequent processing of the surface of the sample; in the second stage in the process, at least two indentation method is formed on the first stage of sampling within the mentioned allowance; when this is used the same as in the first stage, the cutting tool as mentioned planing cutter; and with each repeated indentation are derived shall turn the cutter around its axis on technologically specified angle.

Supplied with the second technical result according to the sixth variant of the invention (claim 6 of the formula) achieved by in the method of formation of threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, according to which implementing a two-stage processing at least two consecutive generated threedimensional microstructures using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, according to the invention the first stage of processing carried out by the operation of high-speed milling, which uses a planing cutter in the form of a multi-faceted, mostly triangular, pyramid, each face of which depending on the direction of cutting is functionally the front surface of the cutter; and at this stage sequentially make a selection of the main part of the volume of the removed material mentioned functional layer within the outline of each of the formed microstructures can be saved allowance, including the depth of the sample, the subsequent processing of the surface of the sample; in the second stage, the process of sequential single indentation method each formed in the first stage of sampling within the mentioned allowance; use that is the same as in the first stage, the cutting tool as mentioned planing cutter; and the indentation are derived each subsequent sampling shall turn the cutter around its axis on the technologically given angle relative to its previous position.

Conducted by the applicant's analysis of the prior art, including searching by the patent and scientific and technical information sources and identify sources that contain information about the equivalents of the claimed inventions, has allowed to establish that it is not detected analogs characterized by the signs and the relationships between them, identical to all the essential features of the claimed technical solution and selected from the identified unique prototype as the most similar set of features similar has identified a set of essential (with respect to perceived by the applicant to the technical result of the distinctive features in the claimed objects set forth in the claims.

Therefore, the claimed technical solution meets the condition of patentability "novelty" under the current law.

To check the compliance of the claimed inventions demand conditions of patentability "inventive step", the applicant conducted an additional search of the known technical solutions with the purpose of revealing of signs consistent with Otley is sustained fashion from the prototype features of the claimed inventions, the results indicate that the claimed invention is not to follow the expert in the obvious way from the prior art because the prior art defined by the applicant, not the influence provided the essential features of the claimed inventions transformations to achieve perceived by the applicant of the technical result.

In particular, the claimed invention does not provide the following transformations known object-prototype:

- addition of a known object any known sign attached to it according to certain rules, to achieve a technical result, in respect of which it is the effect of such additions;

- replacement of any sign of a known object to another famous characteristic to achieve a technical result, in respect of which it is the effect of such a change;

- the exclusion of any characteristic known object while excluding due to the presence of this characteristic function and achievement with the usual result of such exclusion;

- increasing the number of identical signs in a known object to enhance the technical result due to the presence of the object of such signs;

- execution of a known object or part of the C known material to achieve a technical result, due to the known properties of the material;

- create an object with known characteristics, the choice of which and the connection between them is made on the basis of known rules, and achievable technical result is due only to the known properties of the signs of this object and the relationships between them.

Therefore, the claimed invention meet the requirement of the conditions of patentability "inventive step" by applicable law.

The invention is illustrated graphics.

Figure 1 - metallographic printing form with technologically regulated external circuit (view) formed in the functional layer of the bulk microstructure-grooves (the outer contour shown in dotted lines, shading denote the volume of the material of the functional layer to be removed at the first stage by appropriate milling cutting tool according to the invention).

Figure 2 - metallographic printing form with technologically regulated external circuit (view) formed in the functional layer of the bulk microstructure (excavation) after the first stage of processing according to the invention (outer loop is shown in dashed lines).

Figure 3 is a metallographic printing form with technologically regulated by an external circuit (view in plan) is formiruemoi in the functional layer of the bulk microstructure ("stars") after the second stage of processing according to the invention according to claim 1 and claim 4 of the formula (external circuit, limiting dimensions of the microstructure shown in dotted lines).

4 is a metallographic printing form with technologically regulated external circuit (view) formed in the functional layer of the bulk microstructure ("stars") after the second stage of processing according to the invention according to claim 2 and claim 5 of the formula (outer contour of the limiting dimensions of the microstructure shown in dotted lines).

5 is a metallographic printing form with technologically regulated by external circuits (view) formed in the functional layer of threedimensional microstructures ("stars") after the second stage of processing according to the invention according to claim 3 and claim 6 of the formula (external contours, limiting the dimensions of the microstructures shown in dotted lines).

6 is a cross section a-a of figure 2 for variants of the method according to claims 1-3 claims.

Fig 7 - a section a-a of figure 2 for variants of realization of the method according to claims 4-6 claims.

Fig - section b-B on figure 3 for a variant implementation of the method according to claim 1 of the claims.

Fig.9 - metallographic printing form with technologically regulated by external circuits (view) formed in the functional layer of threedimensional microstructures ("stars") after the second stage of processing (double indentation are derived from the rotation of each microstructure mutual rotation of adjacent microstructures).

Figa) is an example of the generated micrometrology image (bitmap volume raster with different depth and mutual position of the point of microstructures formed according to the invention).

Figb) - fragment micrometrology image figa) in an enlarged scale.

In graphics elements of metallographic printing plates and formed the bulk microstructure (excavation) is indicated by the following positions:

1 - form (metallographic printing);

2 - layer (functional);

3 - microstructure of (volume formed in the functional layer 2 in the form of "stars");

4 - seam allowance (the material of the functional layer 2, saved for the implementation of finishing in the second stage);

5 - surface (side surround microstructure 3);

6 - volume (material of the functional layer 2 is removed in the first stage of processing).

7 - sample (formed at the first stage of processing /milling/);

8 - beam ("stars", in which the microstructure is formed 3 after the second stage of processing).

The claimed method is implemented as follows.

In the method of formation of threedimensional microstructures figure 3 prints in the functional layer 2 metallographic form 1 on automated engraving software and hardware system according to the first variant implementation of the image is possible (claim 1 of the formula) implementing a two-stage processing, at least one formed the bulk microstructure 3 using the technology of cutting, which provide a sample of the material of the functional layer 2 within the outline of this microstructure 3. The first stage of processing carried out by the operation of high-speed milling. To do this, use the cutting tool in the form of cutters, mostly conical. Thus, at this stage make a selection of the main part of the volume of the removed material (volume 6) mentioned functional layer 2 inside the loop formed by the microstructure 3 with the possibility to save an allowance of 4 on the subsequent processing of this circuit. At the second stage, the single indentation method is formed on the first sampling stage 7 within the mentioned allowance 4. Used planer cutter in the form of a multi-faceted, mostly triangular, truncated pyramid, each face of which (depending on the direction of cut) is functionally the front surface of the cutter. Moreover, the change of the cutting tool when this process is carried out in automatic mode.

The distinguishing features of the claimed method according to the second embodiment (claim 2 of the formula is the following :

The first stage of processing carried out by the operation of high speed recording motion is ostogo milling, why use a cutting tool in the form of cutters, mostly conical. Thus, at this stage make a selection of the main part of the volume of the removed material (volume 6) mentioned functional layer 2 inside the loop formed by the microstructure 3 with the possibility to save an allowance of 4 on the subsequent processing of this circuit. At the second stage in the process, at least two indentation method is formed on the first sampling stage 7 within the mentioned allowance 4. Used planer cutter in the form of a multi-faceted, mostly triangular, truncated pyramid, each face of which (depending on the direction of cut) is functionally the front surface of the cutter. And with each repeated indentation are derived shall turn the cutter around its axis on the technologically given angle, and the change of the cutting tool when this process is carried out in automatic mode.

The distinguishing features of the claimed method according to the third embodiment (claim 3 of the formula is the following :

Implementing a two-stage processing at least two (consecutive) generated threedimensional microstructures 3 using the technology of cutting. The first stage of processing carried out by the operation of high-speed FR is saravane, why use a cutting tool in the form of cutters, mostly conical. Thus, at this stage consistently make a selection of the main part of the volume of the removed material (volume 6) mentioned functional layer 2 inside the contour of each of the formed microstructures 3 with the possibility to save an allowance of 4 on the subsequent processing of this circuit. At the second stage, the process of sequential single indentation method each formed in the first phase samples 7 within the mentioned allowance 4. Used planer cutter in the form of a multi-faceted, mostly triangular, truncated pyramid, each face of which (depending on the direction of cut) is functionally the front surface of the cutter. Moreover, the indentation are derived each subsequent sample 7 carry out the rotation of the cutter around its axis on the technologically given angle relative to its previous position, and the change of the cutting tool when this process is carried out in automatic mode.

The distinguishing features of the claimed method according to the fourth embodiment (claim 4 of the formula is the following :

The first stage of processing carried out by the operation of high-speed milling, which as a cutting tool used Strohal the first cutter in the form of a multi-faceted, mostly triangular, pyramid, each face of which (depending on the direction of cut) is functionally the front surface of the cutter. Thus, at this stage make a selection of the main part of the volume of the removed material (volume 6) mentioned functional layer 2 inside the loop formed by the microstructure 3 with the possibility to save an allowance of 4 (including the depth of the sample 7) for subsequent processing of the surface of the sample 7. At the second stage, the single indentation method is formed on the first sampling stage 7 within the mentioned allowance 4, used is the same as in the first stage, the cutting tool as mentioned planing cutter.

The distinguishing features of the claimed method according to the fifth embodiment (claim 5 of the formula is the following :

The first stage of processing carried out by the operation of high-speed milling, which as a cutting tool using a planing cutter in the form of a multi-faceted, mostly triangular, pyramid, each face of which (depending on the direction of cut) is functionally the front surface of the cutter. Thus, at this stage make a selection of the main part of the volume of the removed material (volume 6) mentioned functional layer 2 inside the loop formed what has been created microstructure 3 with the possibility to save an allowance of 4 (including the depth of the sample 7) for subsequent processing of the surface of the sample 7. At the second stage in the process, at least two indentation method is formed on the first sampling stage 7 within the mentioned allowance 4. When this is used the same as in the first stage, the cutting tool as mentioned planing cutter. And with each repeated indentation are derived shall turn the cutter around its axis on technologically specified angle.

The distinguishing features of the claimed method according to the sixth embodiment (claim 6 of the formula is the following :

Implementing a two-stage processing at least two (consecutive) generated threedimensional microstructures 3 using the technology of cutting. The first stage of processing carried out by the operation of high-speed milling, which uses a planing cutter in the form of a multi-faceted, mostly triangular, pyramid, each face of which (depending on the direction of cut) is functionally the front surface of the cutter. Thus, at this stage consistently make a selection of the main part of the volume of the removed material (volume 6) mentioned functional layer 2 inside the contour of each of the formed microstructures 3 with the possibility to save an allowance of 4 (including the depth of the sample 7) for subsequent processing of the surface of the sample 7. The WTO is the first stage in the process of sequential single indentation method each formed in the first phase samples 7 within the mentioned allowance 4. When this is used the same as in the first stage, the cutting tool as mentioned planing cutter. Moreover, the indentation are derived each subsequent sample 7 carry out the rotation of the cutter around its axis on the technologically given angle relative to its previous position.

The above cutters are widely known from the prior art (see, for example, RU 2311271 C1, 2007 or EN 2006105766 AND 2007), and therefore in the framework of the present invention not disclosed in detail their structure and geometry.

Because the cutters of the above designs have been successfully used for milling operations, their use as a cutting tool at both stages of processing significantly improves the performance of the technological process, because there is no such auxiliary operation as changing the cutting tool.

Thus formed according to the claimed invention dimensional microstructure 3 in the form of various types of stars with rays 8 themselves are functionally protective elements when printing of securities made by using this method of metallographic form.

In addition, a protective function may perform some software organized collection of multiple (at least two) surround microst is uctur 3, organized in accordance with PP and 6 claims. The reason is that the change in the relative spatial position of microstructures 3, in the aggregate can be done according to a certain law.

It should be noted that by itself, microraster (Fig.9), formed using the inventive method is an effective defensive tool, because it can include a whole set of protective elements. In particular, a grayscale image of the individual elements of the picture prints generated by programmatically organized by changes in the depth of threedimensional microstructures 3 (triangles and stars) in point microraster.

It should also be noted that a two-step processing of each microstructure 3 (milling + intentiona) is required to ensure the high quality of the printed surface of metallographic form 1. Indeed, if we carry out the formation of microstructures 3 solely by indentation method, the excess material of the functional layer 2 will form nodules on the original surface of the functional layer 2, which is excluded during the preliminary milling of education sample 7.

Thus, the above data confirm that the implementation of the use statement is different technical solutions the following cumulative conditions:

objects embodying the claimed solutions, their implementation can be implemented for the formation of threedimensional microstructures of metallographic printing forms;

for the stated objects, as they are characterized in independent items the following formula, confirmed the possibility of their implementation using the above described in the application or known from the prior art on the priority date tools and methods;

objects embodying the claimed technical solution, when their implementation is able to achieve perceived by the applicant of the technical result.

Therefore, the claimed objects correspond to the requirement of the conditions of patentability "industrial applicability" under the current law.

1. The method of formation of threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, which includes a two-stage processing at least one three-dimensional microstructure using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, characterized in that the processing at the first stage is realized by means of high-speed milling, used cut is the third tool in the form of a mainly conical cutters and make a selection of the main part of the volume of the removed material mentioned functional layer inside the loop formed by the microstructure can be saved allowance for subsequent processing of this circuit and the second processing stage in the process a single indentation method is formed on the first stage of sampling within the mentioned allowance, use the tool in the form of a multi-faceted, mostly triangular, truncated pyramid, and the tool change on the processing steps carried out in automatic mode.

2. The method of formation of threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, which includes a two-stage processing at least one generated by volume of the microstructure using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, characterized in that the processing at the first stage is realized by means of high-speed milling, using the cutting tool in the form of a mainly conical cutters and make a selection of the main part of the volume of the removed material mentioned functional layer inside the loop formed by the microstructure can be saved allowance for subsequent processing of this circuit, and the second stage processing carry out the process at least twice indenter the cation formed in the first stage of sampling within the mentioned allowance, when using the tool in the form of a multi-faceted, mostly triangular, truncated pyramid, and with each repeated indentation are derived exercised by the rotation of the tool around its axis on the technologically given angle, and the tool change on the processing steps carried out in automatic mode.

3. The method of formation of threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, which includes a two-stage processing at least two consecutive generated threedimensional microstructures using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, characterized in that the processing at the first stage is realized by means of high-speed milling, using the cutting tool in the form of a mainly conical cutters and consistently make a selection of the main part of the volume of the removed material mentioned functional layer within the outline of each of the formed microstructures can be saved allowance for subsequent processing this circuit and the second processing stage in the process of sequential single indentation method each and is formed at the first stage of sampling within the mentioned allowance, when using the tool in the form of a multi-faceted, mostly triangular, truncated pyramid, and the indentation are derived each subsequent sample is exercised by the rotation of the tool around its axis on the technologically given angle relative to its previous position, and the tool change on the processing steps carried out in automatic mode.

4. The method of formation of threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, which includes a two-stage processing at least one three-dimensional microstructure using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, characterized in that the processing at the first stage is realized by means of high-speed milling, using the tool in the form of a multi-faceted, mostly triangular, pyramid and make a selection of the main part of the volume of the removed material mentioned functional layer inside the loop formed by the microstructure can be saved allowance, including the depth of the sample, the subsequent processing of the surface of the sample, and the second stage of the treatment process single inden is investing formed at the first stage of sampling within the mentioned allowance, when this is used the same as in the first stage of the processing tool in the form of a multi-faceted, mostly triangular, pyramid.

5. The method of formation of threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, which includes a two-stage processing at least one generated by volume of the microstructure using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, characterized in that the processing at the first stage is realized by means of high-speed milling, which uses the tool in the form of a multi-faceted, mostly triangular, pyramid and make a selection of the main part of the volume of the removed material mentioned functional layer inside the loop formed by the microstructure can be saved allowance, including the depth of the sample on subsequent processing of the surface of the sample, and the second processing stage in the process at least twice indentation method is formed on the first stage of sampling within the mentioned allowance used is the same as in the first stage, the tool in the form of a multi-faceted, mostly triangular, feast of the IDA, and with each repeated indentation are derived exercised by the rotation of the tool around its axis on technologically specified angle.

6. The method of formation of threedimensional microstructures of figure prints in the functional layer of metallographic form on automated engraving software and hardware complex, which includes a two-stage processing at least two consecutive generated threedimensional microstructures using the technology of cutting, which provide a sample of the material of the functional layer within the circuit of this microstructure, characterized in that the processing at the first stage is realized by means of high-speed milling, using the tool in the form of a multi-faceted, mostly triangular, pyramid, and at this stage consistently make a selection of the main part of the volume of the removed material mentioned functional layer within the outline of each of the formed microstructures with the possibility saving an allowance, including the depth of the sample, the subsequent processing of the surface of the sample, and the second stage of the treatment process sequential single indentation method each formed in the first stage of sampling within the mentioned allowance used is the same as the as the first stage, the tool in the form of a multi-faceted, mostly triangular, pyramid, and the indentation are derived each subsequent sample is exercised by the rotation of the tool around its axis on the technologically given angle relative to its previous position.



 

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29 cl, 8 dwg

FIELD: physics.

SUBSTANCE: invention relates to a polymer which absorbs in the near infrared region, containing at least two different side infrared chromophoric groups which are covalently bonded to the main polymer chain which is soluble in resin bases, at least one of which is an indole cyanine dye and the other benz[e]indole cyanine dye. When using pre-printing coating of a photosensitive positive offset plate, stabilisation time required after production is considerably shorter and the additional process of conditioning before use is avoided. Pre-printing plates are preferably plates exposed to the image by a laser which emits in the near infrared region at wavelength between 780 nm and 850 nm.

EFFECT: improvement of operational characteristics.

11 cl, 2 tbl, 6 ex

FIELD: printing industry.

SUBSTANCE: material (10) of base contains stencil mesh (12), resistive layer (30) of resistive material and protective film (22). According to invention, method provides for assembly of substrate material (10) from various components. In particular, method includes at least stages of the first resistive layer (30) application on one side of stencil mesh (12) and further application of protective film (22) onto the first resistive layer (30) on stencil mesh.

EFFECT: improved quality of material.

25 cl, 4 dwg

FIELD: printing industry.

SUBSTANCE: invention relates to technology of manufacturing printing forms for offset printing. Method of manufacturing printing forms for offset printing is realised by changing properties wettability of areas of work surface of printing forms, transformation of properties being realised due to change of chemical composition of work surface influencing on chosen areas by flux of accelerated particles. As substance of work layer applied is two- or poly- atomic inorganic material based on carbon with addition of aluminium atoms 0.01-20-at.% with thickness 1-1000 nm, which is covered on bottom layer with applied on it layer of aluminium or alloys on its base or on bottom layer from aluminium or based on it alloys.

EFFECT: invention allows to simplify and accelerate manufacturing process, increase of resolving capacity and endurance of providing multiple application of forms.

6 cl, 4 dwg, 1 tbl, 5 ex

FIELD: printing industry.

SUBSTANCE: invention relates to polygraphic consumable materials and can be used for production of film offset printing plates. Material has a polyethylene terephthalate film as a base on which an adhesive substrate and hydrophilous receiving layer are applied. The adhesive substrate includes polyvinylpyrrolidone, vinyl acetate copolymer with vinyl chloride and trichloracetic acid with the following ratio of the components, wt %: polyvinylpyrrolidone with 12600±2700 - 2.50÷66.66 of molecular weight, vinyl acetate copolymer with vinyl chloride - 5.00÷75.00, trichloracetic acid - 16.67÷75.00. Hydrophilous receiving layer includes polyvinyl alcohol, filler - kaolin, or iron oxide pigment, or their mixture and glutaric dialdehyde with the following ratio of the components, wt %: polyvinyl alcohol - 16.26÷33.11, kaolin - or iron oxide pigment, or their mixture - 63.49÷83.06, glutaric dialdehyde - 0.33÷4,76.

EFFECT: adhesion enhancement of layers that leads to efficient increase of run length.

1 tbl, 12 ex

FIELD: process engineering.

SUBSTANCE: invention relates to machine building, particularly, to making drill string section locks, each being made up of case, sleeve, and four small and two large inserts. Lock case blank is made from two forged pieces from high-strength impact-resistance steel welded together. Sleeve blank is made from three forged pieces. Larger insert blanks are made from two forged pieces varying in strength and impact resistance, welded together. Small insert blanks are made forged pieces from high-strength impact-resistance steel welded together. Roots of weld seams are removed by machining from all blanks.

EFFECT: higher cost efficiency.

8 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: at manufacture of hollow blade there formed are elements of the blade back and trough of set of plates located at equal distance to the profile of formed element; besides, after the specified profile and sizes are given to the plates, they are fixed and connected to each other by means of permanent connection. Then, back and trough elements are fixed so that the specified profile and sizes of the blade are provided and connected to each other in non-detachable manner. Blade back and trough elements are connected to each other through additional metal elements forming the leading and trailing edges of the blade, which correspond to profile and sizes of leading and trailing edges of the blade and have the cavities providing the conjugated connection to the blade back and trough elements.

EFFECT: invention allows improving erosion resistance of the blade, as well as reducing the forces required for formation of the blade back and trough elements.

24 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: proposed method is intended for cutting out of rolled sheet at NC equipment in making large-size and complex structures. Rolled sheet is cut out to trim edges for welding and holes are made by plasmatron and milling cutter. Plasmatron and milling cutter are coupled to allow adjusting spacing between them and displacement in PNC-controlled curvilinear outline with plastron and milling cutter displacing in polar coordinates relative to center aligned with milling cutter center. Holes are drilled by plasma blowing with reaming by milling cutter.

EFFECT: faster process, higher quality.

2 dwg

FIELD: process engineering.

SUBSTANCE: proposed method comprises turning drill body from parent metal to make first blank symmetric about rotational axis. Two deep spaced apart holes are drilled in first blank to extend from blank end points arranged off-center relative to central axis 34 toward cutting head shank. Second blank thus made to have spaced apart clamp points in zone located there between is heated to preset temperature and coiled by plastic deformation at preset angle. Chip removal flutes milled in third blank in helical fashion in amount matching with that of said deep holes so that coiled deep holes extends inside fluted lands. Note that deep holes are milled on cutting head side in untwisted straight area to make outlet holes extending into chip removal flutes.

EFFECT: simplified production.

19 cl, 4 dwg

FIELD: process engineering.

SUBSTANCE: invention is intended for making butt mill, plunge mill or drilling mill, and comprises the following stages. Making the mill with unequal angular distance between adjacent teeth. Note here that vibration caused by unequal angular distance between, at least, two adjacent teeth is selected to suppress, at least, a portion of vibration caused by unequal angular distance between, at least, another pair of adjacent teeth. Machining trial part and measuring vibration and resonance caused by angular distance between adjacent teeth. In case abnormal vibration and resonance persist, angular distance is corrected to eliminate abnormal conditions. Making another mill with corrected angular distance. Machining said trial part by corrected mill and measuring vibration and resonance. Repeating above described operations unless mill is made with vibration caused by unequal angular distance between, at least, two adjacent teeth suppresses, at least, a portion of vibration caused by unequal angular distance between, at least, another pair of adjacent teeth. Further, it comprises making, at least one working mill corresponding to that produced at previous step.

EFFECT: higher durability of mill and surface quality.

40 cl, 6 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and may be used in making drilling tool and its operation with metal-working machines. Proposed tool comprises drill body, cutting head arranged on end face of drill body, and shank arranged on its end. Drill body has two chip removal flutes defined by ribs made on its sides. First said flute is bent in helical fashion. Second flute is not bent or bent in helical fashion with lead angle different from that of the first flute directed, preferably, in the same rotational direction. Invention covers also versions of methods of fabricating drilling tools.

EFFECT: improved operating properties.

32 cl, 7 dwg

FIELD: process engineering.

SUBSTANCE: invention may be in production or repair of turbomachine monoblocks from titanium alloys. In heating, work pieces are pressed against each other along contact surface with force making welding pressure at preset amplitude and frequency of relative displacement of parts along said contact surface. Forging is performed after workpiece reciprocation shutdown on applying forging force. At welding first step, amplitude is set to 3 mm to 5 mm while frequency makes 15-70 Hz. At welding second step, amplitude is set to 1 mm to 2 mm while frequency makes 40-80 Hz. Application pressure varies from 30 MPa to 180 MPa while that of forging varies from 160 MPa to 320 MPa. Coefficient of welding specific power input varies from 2.2 kW to 3.2 kW.

EFFECT: high quality of weld joint.

7 cl, 1 ex

Method of planing // 2456124

FIELD: process engineering.

SUBSTANCE: proposed method comprises imparting principal motion to work pieces, at least two controlled motion to tool so that resultant motion allows planing with feed among passes. Tool controlled turns about axis that allows varying tool orientation and cutting at preset front angle. Prior to cutting, work pieces are positioned on machine tool chuck along the circle with intervals there between to rotate the chuck and feed tool to first workpiece so that passes are sequentially made in planes perpendicular to rotational axis. Note here that in interval between first and last work pieces the tool is changed into the plane of next pass by feed motion while said controlled motions are carried out in lengthwise and crosswise directions with respect to chuck rotational axis.

EFFECT: expanded operating performances, higher efficiency and precision.

3 cl, 6 dwg

FIELD: process engineering.

SUBSTANCE: proposed method is used to machine end mill grooves and comprises positioning of cutting tool relative to billet and forming shaped helical groove in one-pass milling. To decrease the range of tools, end plain milling cutter is used. Note here that milling cutter positioning is performed in arranging it perpendicular to billet so that working face and lengthwise axis are located at preset A and B from billet lengthwise and crosswise axes and turned through process angles α and β to said axes. Note here that distances A and B may make (0.5-1)R and (0.75-1.5)R respectively, while angle α and β do not exceed 20°, where R is billet radius.

EFFECT: higher efficiency of cutting.

2 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: protective tube comprises first cylindrical branch pipe made from metal strip and second cylindrical branch pipe formed from metal strip. First metal branch pipe is fitted with interference in second branch pipe.

EFFECT: higher strength.

15 cl, 6 dwg

FIELD: machine engineering, namely manufacture of flat threading dies for threading by plastic deforming process.

SUBSTANCE: apparatus includes housing with two mutually normal linear guides placed in horizontal plane; slide performing main reciprocation lengthwise motion along one guide of housing; carriage performing cross feed motion along other guide of housing; carriage placed in guides of slide arranged along the same axis as guides of carriage at neutral position of slide. In order to enhance efficiency, apparatus is provided with cylindrical knurling tool having threading knurl. Apparatus may have contour follower mounted on housing and providing possibility for simultaneously working two or more threading dies. At least one threading die has several flat portions inclined one relative to other. Carriage is provided with roller that rolls on surface of contour follower. In order to provide constant engagement of roller and contour follower, carriage may be spring-loaded relative to follower.

EFFECT: enhanced efficiency of apparatus.

4 cl, 1 dwg

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