Impression pattern forming method in functional layer of article by multi-pass planing in nc machine tools and planing cutter for performing the same

FIELD: micro- and(or) nano-technology.

SUBSTANCE: method comprises steps of removing allowance in central zone of working during rough pass and then finishing surfaces of lateral faces of shaped fragments of pattern along the whole depth of rough working pass. It is realized at using only one lateral edge of cutter to be rotated around its lengthwise axis in curvilinear and broken portions of its cutting path while providing optimal three-dimension position of front surface of cutter relative to cutting surface. Rough passes are performed by means of cutter while using in first pass simultaneously two lateral cutting edges and then using only one of said cutting edges turned to formed lateral face of shaped fragment of pattern. In order to enhance accuracy and quality of working by providing possibility of removing allowance in zones of pattern with broken cutting path during process of removing allowance remained after rough working at finishing, in zones of internal angles of broken portion of cutting path and in zone of portions with small joining radius cutter is lifted for providing outlet of its working part onto upper plane of functional layer of article. Then cutter is turned by angle normalized by cutting path going-on line and it is again fed-in to allowance portion remained after lifting cutter by initial depth. Cutter is lifted and descended while simultaneously imparting to it main cutting motion into zone of removed allowance. Planing cutter includes stem and working part restricted by flat front surface with lateral cutting edges and profiled back surface with lead angle equal to zero for forming end portion of working part. Cross section of working portion is in the form of axially symmetrical figure. Generatrices of back surface are inclined by the same angles relative to axis of cutter stem. End portion of working part is flat one and it is the form of oval-half whose plane is spatially inclined by acute angle relative to front surface. Rib formed by crossing of end portion and front surface serves functionally as third cutting edge; it is oriented by angle 90° relative to lengthwise axis of cutter.

EFFECT: improved accuracy and quality of planing by such cutter.

7 cl, 20 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. The claimed invention can be implemented by industrial widely known cutting tools - planer cutters. In particular, the invention can be used for automated formation (for example, through multi-pass processing planing) submicron structures of the topography of the functional layers of metallographic 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 retrieve the image (topography) of a given configuration and depth with sub-micron resolution structures of this figure (relief).

Since all the main disadvantages of the following (known from the prior art) methods retrieve the image prints in the functional layer of the product is most explicitly manifested in precision formation processes of the specialized structures of the above-mentioned pattern with submicron accuracy (resolution) of their geometrical parameters (for example, in manufacturing processes of metallographic forms for gravure printing), it is reasonable to disclose the main features of these processes, linked to the s with the requirements for restrictions on the precision of the parameters generated by these processes specialized structures.

In particular, metallographic forms for gravure printing, used for receiving printed products (requiring a high degree of protection against forgery), have on the working surface (i.e. in the functional layer) projections, mainly trapezoidal profile generated by performing the corresponding profile grooves (grooves). Accuracy requirements of the components of these projections and their form (and therefore to the same elements of the above-mentioned cavities) are characterized by the following deviations from the nominal parameters:

- deviation from the specified form - 3 microns;

- deviation from the predetermined width is 4 μm;

- deviation from a given height (depth) - 5 microns;

- the deviation of the line elements of the profile (side faces the bottom of the engraving and edges) from the flatness and straightness - 4 ám.

A method of obtaining a closed contour drawing in the functional layer of the product by means of laser processing (SU, No. 1508468).

According to this known from the prior art method of forming a profile of the fragments of the picture is as follows.

The laser light through a lens Assembly with an off-center rectangular pupils focus on is placed in the focal plane of the above-mentioned lens unit mask stencil, which diafragmirovat peripheral radiation is La external and internal contours of the shapes of the openings of the mask or stencil. Next diaphragmatically stream of laser radiation through the projection lens is projected on the surface of the functional layer of the processed product. As a result of this (through the projection lens) provide a refocusing image of the shape of the openings of the mask or stencil on the processed functional layer of the product with the given reduction.

The disadvantages of this method of treatment should include (in addition to the high cost of special equipment required for its implementation), the relatively low resolution of the formed structures of relief. The reason is that when using optical systems, as a rule, there are fundamentally insurmountable limitations on the accuracy of the projected on a functional layer formed image pattern caused by diffraction and abberation effects in optical systems, as well as defocusing of the projected image during processing of the deep levels of the functional layer.

In addition, following the above method on the accuracy of the formed functional layer of the product picture are superimposed error making circuit of this figure directly in the mask is a stencil, and inherent in this type of processing, the variation of flatness g is Anya and evaporated deposition (spray) material for finishing the surface of the functional layer of the product (i.e. a surface that is not subject to any post-processing).

The closest in technical essence and the achieved result to the claimed invention (object method) is a method of forming a pattern prints in the functional layer products using multi-pass cutting on CNC machines, according to which by means of at least one roughing pass of tool carry out the removal of the allowance in the Central treatment area. Followed by final machining of the surface of the lateral faces of the relevant fragments of the pattern throughout the depth of the roughing pass. Use only one of the side cutting edges of the cutter with the implementation of its rotation around the longitudinal axis curved and broken parts cut path with the optimization of the spatial position of the front surface of the cutter relative to the surface of cut (EN, No. 2179094, 2002).

The disadvantages of this method of forming a pattern in the functional layer of the product is to be attributed to its technological complexity due to the fact that the full loop requires consistent implementation of several technological transitions, one of which is the formation locations of the trajectory of the cutting cone-shaped holes, as well as the lack of accuracy and quality powermascara generated terrain in the area of the sharp corners of the cut path, due to rounding these corners during the formation of the cone-shaped recesses.

In addition, in a known way back surface of the cutter is always in the region of the deleted allowance. Therefore, to ensure the exception of the rear contact surface with a removable material, it is necessary to strictly maintain spatial orientation (i.e. strict perpendicular at each point of the cut path) of the front surface of the cutter relative to the cutting surface, which complicates the creation of software for this technology planing.

From the same source of information known planing cutter for implementing the method containing the shank and pyramidal working part bounded by forming the end portion side flat front surface side cutting edges, two main and two additional rear surfaces. Front angle made close or equal to 0°. The cross-section of the working part has the form of a versatile axisymmetric Pentagon. The rear surface are equal, within a process tolerance angle to the axis of the shank, and the parties referred to the Pentagon (owned additional rear surfaces of the shorter sides belonging to the main rear surfaces.

In this history the nick of information is considered a variant of the construction execution planing cutter, the cross-section of the working part of which has the form of an isosceles triangle, and the rear surface are equal (within the technological tolerance) angle to the axis of the shank.

Thus, in both cases, the structural embodiment planing cutter mechanical area of the working part (i.e. the top) has the form of points, which adversely affects the strength characteristics (wear resistance) of the tool due to the concentration of the load when cutting on a scatter plot. In addition, the geometry of the cutter with a point vertex does not allow to get in the processing of flat surface at the bottom of the treatment zone (this zone will always have a toothed profile).

The basis for the claimed invention was based on the task of creating such a formation method of drawing prints in the functional layer of the product, which would increase the maintainability of the overall process for improving the accuracy and quality of treatment due to the possibility of removal allowance in appropriate areas of the contour of the groove portion of the figure (i.e. areas with a broken trajectory cutting) directly cutter when finishing the passage, as well as simplifying the software to implement this technology on CNC machines due to the lack of the need to strictly maintain spatial orientat the Yu (ie strict perpendicular at each point of the cut path) of the front surface of the cutter relative to the surface of the cutting.

The task (in terms of the object of the invention "method") is solved by a method for forming a pattern prints in the functional layer products using multi-pass cutting on CNC machines, according to which by means of at least one roughing pass of tool carry out the removal of the allowance in the Central treatment area, followed by final machining of the surface of the lateral faces of the relevant fragments of the pattern throughout the depth of the roughing pass, using only one of the side cutting edges of the cutter with the implementation of its rotation around the longitudinal axis curved and broken parts cut path with the optimization of the spatial position of the front the surface of the cutter relative to the surface of cut, according to the invention roughing passes shall be implemented by the cutter, and the first pass is used simultaneously by two lateral cutting edges, and then one of them turned to form a side face of the relevant fragment of the figure, in the process of being removed when finishing the passage left after rough machining allowance in the zone of the interior angles of a broken sections cut path, and t is the train in the coupling zone areas with small radius pairing exercise rise cutter with providing access to the working parts on the upper surface of the functional layer of the product, then provide rotation of the cutter on the regulated direction of continuation of the trajectory of the cutting angle and carry out re-cutting the remainder after lifting the plot allowance to the original depth, thus raising and lowering the cutter carried out with simultaneous message to it the main movement of the cutting region deleted allowance.

Optimally mentioned raising and lowering of the cutter to perform at an angle close to or equal to 45°.

It is after finishing to carry out the formation of the rectilinear profile of the microstructures formed on the functional layer of the bottom plane with ensuring their orientation at an angle relative to the source during previous processing of the cut path.

Mentioned profile of the microstructure can be formed in the form of a set of parallel lines by type of relief "assure or in a grid-type relief "Caro".

The task in relation to the object of the invention device according to the first embodiment) is solved by the fact that in the planer cutter (for the method), containing the shank and pyramidal working part bounded by forming the end portion side flat front surface side cutting edges, two main and two additional and rear surfaces, with the front angle made close or equal to 0°, the cross-section of the working part of having the kind of versatile axisymmetric Pentagon, the rear surfaces arranged with equal (within technological tolerance) angle to the axis of the shank, and the parties mentioned Pentagon belonging to the additional rear surfaces made shorter sides belonging to the main rear surfaces, according to the invention of the mechanical section of the working part is made flat and has a shape of an axisymmetric Pentagon, the plane of which is spatially located at an acute angle to the front surface, and the edge formed at the intersection of the face area from the front surface, functionally is the third cutting edge, which is oriented at an angle close to or equal to 90° relative to the longitudinal axis of the cutter.

Optimally, so that the longitudinal axis of the cutter lying in the plane of its front surface and passed through its middle.

The task in relation to the object of the invention device according to the second embodiment) is solved by the fact that in the planer cutter (for the method), containing the shank and pyramidal working part bounded by forming the end portion side flat lane the days surface with lateral cutting edges and two rear surfaces, with the front angle made close or equal to 0°, the cross section of the working part of which has the form of an isosceles triangle, the rear surface are equal (within the technological tolerance) angle to the axis of the shank, according to the invention of the mechanical section of the working part is made flat and has a shape of an isosceles triangle, the plane of which is spatially located at an acute angle to the front surface, and the edge formed at the intersection of the end section with a front surface, functionally, is the third cutting edge, which is oriented at an angle close to or equal to 90° relative to the longitudinal the axis of the cutter.

Optimally, so that the longitudinal axis of the cutter lying in the plane of the front surface and passed through its middle.

The task in relation to the object of the invention device according to the third embodiment) is solved by the fact that in the planer cutter (for the method), containing a shank and a working portion bounded by forming the end portion side flat front surface side cutting edges and the core rear surface, with the front angle made close or equal to 0°, the cross section of the working part of which has the appearance of assymmetric the big figure, and forming the rear surface are equal, within a process tolerance angle to the axis of the shank, according to the invention of the mechanical section of the working part is made flat and has a shape of semi-circle, the plane of which is spatially located at an acute angle to the front surface, and the edge formed at the intersection of the end section with a front surface, functionally, is the third cutting edge, which is oriented at an angle close to or equal to 90° relative to the longitudinal axis of the cutter.

Optimally, so that the longitudinal axis of the cutter lying in the plane of the front surface and passed through its middle.

The invention is explained with graphics.

Figure 1 is a fragment of figure prints, formed by a closed contour grooves of trapezoidal profile in the form of a triangle (after finishing).

Figure 2 - cross section a-a of figure 1.

Figure 3 - callout I of figure 1.

Figure 4 - a section b-b in figure 3.

5 is a structural implementation of a planing cutter to implement the method according to claim 6 of the formula of the invention (side view).

6 is a structural implementation of a planing cutter to implement the method according to claim 6 of the formula of the invention (top view).

7 - section G-G in figure 5.

Fig - view B in figure 5.

Fig.9 - constructive implementation of the planing cutter for implementing the method according to claim 8 of the formula of the invention (side view).

Figure 10 - constructive performance of a planing cutter to implement the method of claim 8 claims (top view).

11 is a cross section d-D in figure 9.

Fig - type E in figure 9.

Fig - constructive performance of a planing cutter for implementing the method according to claim 10 of the formula of the invention (side view).

Fig - constructive performance of a planing cutter to implement the method of claim 10 claims (top view).

Fig - type H Fig.

Fig - section f-F in Fig.

Fig - pass sequence (pattern cutting) for roughing.

Fig - pass sequence (pattern cutting) when finishing the processing.

Fig - microstructure according to the type of relief "Caro".

Fig - microstructure according to the type of relief "assure".

A method of obtaining a pattern in the functional layer of the product is as follows.

First, it is useful to note that according to the present invention, the term "product"generally refers to metallographic form containing complete engraving from a set of grooves and protrusions, obtained by the methods of computer graphics and providing the required quality of the prints.

Before the implementation of the patented process generated in the functional layer 1 product 2 total engraving divided into separate processing objects - drawings 3, predstavlyayushie a complete part engravings, which is not bound, for example, the General tabs with other finished parts of this engraving.

Next is the immediate processing in accordance with the patented method, which consists in forming a functional layer 1 product 2 of the above drawings 3.

The method of forming figure 3 prints in the functional layer 1 product 2 by the method of multi-pass cutting on CNC machines as follows. By at least one roughing pass of tool carry out the removal of the allowance in the Central treatment area (see Fig, where the numbers indicate the sequence of the aisle, and the dashed line is the nominal profile forming relief structures, i.e. grooves). Followed by final machining of the surface of the side faces of the profile fragments of figure 3 on the depth roughing pass (see Fig, where is carried out in two passes, the sample remaining seam allowance to obtain the nominal profile). Use only one of the side cutting edges 4 or 5 of the cutter 6 with the implementation of its rotation around the longitudinal axis curved and broken (see figure 3, callout I of figure 1) plots the trajectory of the cutting with the optimization of the spatial position of the front surface 7 of the cutter 6 relative to the cutting surface. Black is the new walkways shall be implemented by the cutter 6, moreover, the first pass uses simultaneously two side cutting edges 4 and 5, and then only one of them turned to form the side profile of a fragment of figure 3. In the process of being removed when finishing the passage left after rough machining allowance in the zone of the interior angles of a broken sections cut path (as well as in the coupling zone areas with a small fillet radius) is taking cutter 6 with providing access to the working parts (i.e. the third transverse cutting edge 8) on the upper surface 9 of the functional layer of the product 2. Then provide rotation of the cutter 6 on the facing direction of the continuation of the trajectory of the cutting angle and perform a re-entry remaining in the lifting area of the seam allowance on the source depth. This raising and lowering of the cutter 6 is performed with simultaneous message to it the main movement of the cutting region deleted allowance (the cutting direction when raising and lowering the cutter 6 in figure 1 is conventionally shown by arrows).

Mentioned raising and lowering of the cutter 6 to implement at an angle close to or equal to 45°.

After finishing, it is advisable to carry out the formation of the rectilinear profile of the microstructures formed on the functional layer 1 bottom plane with ensuring their orientation at the given angle to the source during previous processing of the cut path. This promotes better retention of ink when printing using this metallographic forms.

Rectilinear profile of the microstructure is formed, usually in the form of a set of parallel lines by type of relief "assure" 10 or in a grid-type relief "Caro" 11.

For carrying out the proposed method uses a planing cutters 6 special design.

According to the first variant of the constructive execution (figure 5-Fig) planing cutter 6 for implementing the method comprises a shank 12 and a pyramidal working part bounded by forming the end portion of the flat part of the front surface 7 with lateral cutting edges 4 and 5, the two main rear surfaces 13 and 14 and two additional rear surfaces 15 and 16. Front angle made close or equal to 0°. The corners in the plan "ϕ" are equal. The cross-section of the working part has the form of a versatile axisymmetric Pentagon 17. The rear surface 13, 14, 15, 16 are equal (within the technological tolerance) angle to the axis of the shank 12, and the said Pentagon 17 belonging optional rear surfaces 15 and 16, the shorter sides belonging to the main rear surfaces 13 and 14. Design features of this variant execution is what I am following. End section 18 of the working part is made flat and has a shape of an axisymmetric Pentagon, the plane of which is spatially located at an acute angle to the front surface 7. When this edge formed at the intersection of the end section 18 with the front surface 7, is functionally third (transverse) cutting edge 8, which is oriented at an angle close to or equal to 90° relative to the longitudinal axis of the cutter 6.

According to the second variant of the constructive execution (Fig.9-Fig) planing cutter 6 for implementing the method comprises a shank 12 and a pyramidal working part bounded by forming the end section 18 of the working part of the flat front surface 7 with lateral cutting edges 4 and 5 and two rear surfaces 13 and 14. Front angle made close or equal to 0°. Cornersϕ" in the plan are equal to each other. The cross-section of the working part has the form of an isosceles triangle 19. The rear surfaces 13 and 14 are equal, within a process tolerance angle to the axis of the shank 12. Features of this variant execution is the following. End section 18 of the working part is made flat and has a shape of an isosceles triangle 19, the plane of which is spatially located at an acute angle to the front surface 7. If e is ω rib, formed at the intersection of the end section 18 with the front surface 7, is functionally third (transverse) cutting edge 8, which is oriented at an angle close to or equal to 90° relative to the longitudinal axis of the cutter.

According to the third variant of the constructive execution (Fig-Fig) planing cutter 6 for implementing the method comprises a shank 12 and a working part, limited mechanical forming section 18 of the working part of the flat front surface 7 with lateral cutting edges 4 and 5 and the core rear surface 20. The corners in the plan "ϕ" are equal. Front angle made close or equal to 0. The cross-section of the working part has the form of a rotationally symmetric shape, and forming a rear surface 20 are equal, within a process tolerance angle to the axis of the shank 12. Features of this structural embodiment is the following. End section 18 of the working part is made flat and has a shape of semi-circle, the plane of which is spatially located at an acute angle to the front surface 7. When this edge formed at the intersection of the end section 18 with the front surface 7, is functionally third (transverse) cutting edge 8, which is oriented at an angle close to or equal to 90° relative to the longitudinal about the and cutter 6.

In all variants of constructive perform optimally to the longitudinal axis of the cutter 6 lying in the plane of the front surface 7 and passed through its middle.

Thus, the engraving is one of the traditional manufacturing methods of metallographic forms. The algorithms used in the control programs, represent a mathematical realization of the known methods of engraving. Their development is crucial to the correct mathematical representation of the geometry of the cutting tool (engraving cutter 6) and the technological features of the cut.

According to the patented method of engraving is reinforced by the cutters 6 stated construction, in which the end section 18 is implemented as a platform (not point) of a corresponding form, for example in the form of an isosceles triangle 19, the base of which (optimal performance) is significantly smaller than the height held to it.

Changing the shape of the working portion of the cutter 6 in comparison with the known from the prior art has also led to changes in processing technology. This change is in the failure, for example, contouring or shaping the conical recesses on broken parts cut path as the primary processing operation.

Originally implemented (on line the existing scheme of cutting) rough machining operations (sample) allowance and then finishing line or circuit region and in the end finishing the bottom and causing him microstructure.

To increase the stability of the cutter 6 is also used active management of the angle of rotation of the cutter 6 in places of turns, so that the rear part of the cutter 6 has always been located in the treated area. Active control of the angle of rotation is also used for forming corners in the elements of the engraving method exit cutter 6 up along processing path followed by a rotation and re-cutting. In all these cases, the angle of the spatial position of the front surface 7 relative to the surface of cut is calculated on the original data and, as a rule, is not 90 degrees to the direction of movement.

In addition, when entering and exiting the tool from the workpiece material are formed sloping plots.

All these changes led to a significant increase in durability of the cutter 6, the almost complete disappearance of the burrs formed on the structures of figure 3 engravings and increase processing speed.

An example of a specific implementation of the patented method of producing figure 3, the functional layer 1 product 2 using a planing cutter 6 6 claims.

Practical implementation of the patented method was implemented on a special g is airballon machine (mounted in termokonstantnye the location on the basis of the known from the prior art standardized equipment and components) on set operations, reflected in the claim 1 and claim 2, for example, forming a closed profile grooves, profile configuration which is shown in figure 1 and figure 2 graphic materials with the following technologically predetermined geometrical parameters:

- the width of the grooves in the upper section - 50 µm;

- the depth of the grooves 35 microns;

- the length of the contour grooves on its longitudinal axis 11 mm;

- deviation from the specified form - 1 µm;

- deviation from the predetermined width in the upper section - 4 µm;

- deviation from the desired depth is 1 μm;

- the deviation of the line elements of the profile faces, the bottom of the grooves and ribs) from the flatness and straightness - 4 ám.

As the cutting tool was used cutter with a width transverse cutting edge 10 μm. Workpiece material products 2 - brass brand L. Maximum cutting depth coordinate Z was 15 microns in a single pass of the tool, the cutting speed of 300 mm/min

Measurement of geometrical parameters of the formed functional layer 1 products 2 relief structures (in particular, grooves 8, forming a straight line) showed that actually obtained in the process in accordance with patent-pending technology deviations do not exceed technologically regulated field of tolerance for the manufacture of printing forms for gravure printing that is used and the expansion of currency and other securities, requiring submicron resolution fragments figure 3 print. Namely, the respective ranges of deviations were within the following limits:

- deviation from the specified form - ±1 μm;

- deviation from the predetermined width in the upper section of the ledge - ±2 microns;

- deviation from the desired depth - ±1 μm;

- the deviation of the line elements of the profile faces, the bottom of the grooves and ribs) from the flatness and straightness - ±0.5 micron.

Thus, patent-pending method of forming a pattern prints in the functional layer of the product by cutting (slicing) of the specialized structures of the formed image can be industrially implemented in different areas of technology. For example, the formation of mechanically relief in the functional layers of metallographic forms (cliche) for gravure printing with sub-micron resolution of the formed structures (printed and gap elements), used mainly in the production of banknotes and other securities (requiring a high degree of protection against forgery), as well as in other fields of technology where it is needed to obtain the functional layer of the product prints the specified sub-micron resolution of its structures.

1. Method of forming pattern prints in the functional layer of the product with the help of multipass stroganina CNC lathe, including the removal of the allowance in the Central zone of the processing by at least one roughing pass with subsequent finishing treatment of the surface of the side faces of the relevant fragments of the pattern throughout the depth of the roughing pass, using only one of the side cutting edges of the cutter with the implementation of its rotation around the longitudinal axis curved and broken parts cut path with the optimization of the spatial position of the front surface of the cutter relative to the surface of cut, with draft passages is realized by means of the cutter using the first pass of two lateral cutting edges, and then use one of them turned to form a side face of the profile fragment picture, characterized in that the removal process when finishing pass left after rough machining allowance in the zone of the interior angles of a broken sections cut path and in the area of small radius pairing exercise rise cutter with providing access to the working parts on the upper surface of the functional layer of the product, and then provide rotation of the cutter on the regulated continuation of the trajectory of the cutting angle and carry out re-cutting the remainder after lifting the plot allowance to the original depth, p and this raising and lowering of the cutter carried out with simultaneous message to it the main movement of the cutting region deleted allowance.

2. The method according to claim 1, characterized in that the said raising and lowering the cutter carried out at an angle close or equal to 45°.

3. The method according to claim 1, characterized in that after finishing are forming rectilinear profile of the microstructures formed on the functional layer of the bottom plane with ensuring their orientation at an angle relative to the cut path during previous processing.

4. The method according to claim 3, characterized in that the rectilinear profile of the microstructure formed in the form of a set of parallel lines by type of relief "assure".

5. The method according to claim 3, characterized in that the rectilinear profile of the microstructure is formed in a grid-type relief "Caro".

6. Planing cutter for forming a pattern prints in the functional layer of the product containing the shank and the working part, limited mechanical stretch, flat front surface side cutting edges and the core rear surface, with the front angle is made equal to 0°and the cross-section in the form of a rotationally symmetric shape, thus forming the back surface are arranged with an equal angle to the axis of the shank, wherein the end section of the working part is made flat and has a shape of semi-circle, the plane of which is spatially located under about is trim angle to the front surface, when this edge formed at the intersection of the end section with a front surface, functionally, is the third cutting edge, which is oriented at an angle equal to 90° relative to the longitudinal axis of the cutter.

7. Planing cutter according to claim 6, characterized in that the longitudinal axis of the cutter lies in the plane of the front surface and passes through its middle.



 

Same patents:

FIELD: metal working in number program controlled machines.

SUBSTANCE: cutter includes active portion and stem. Cutter apex is arranged in its axis belonging to front surface. Main and trailing back faces are equally inclined relative to cutter axis and they cross front surface by positive back angles relative to main and trailing cutting edges having their own angles in plan view. Trailing back surfaces form second pair of surfaces inclined by the same angles relative to cutter axis. Inclination angles of main and trailing back surfaces relative to cutter axis is determined by value of back angle of main cutting edge. Trailing back surfaces are inclined by less angles relative to cutter axis. Active portion of cutter has at least with two chamfers equally inclined relative to cutter axis.

EFFECT: enhanced strength of cutter, improved stability of manufacturing process.

5 cl, 19 dwg

The invention relates to the manufacture of stamps of high quality printed products

The invention relates to the field of metal working machine, CNC multi-pass cutting, in particular for engraving with the rotation of the cutter when doing drawings on metallographic forms used in the manufacture of products with a high degree of protection against forgery

The invention relates to a device for producing images and can be used when retrieving an image on a smooth surface, natural and artificial stone, metal and other materials

The invention relates to the field of optical recording graphic information and can be used in the printing industry, in particular for the manufacture of film, offset printing and flexo printing forms, as well as raster shafts, phototelegraphy, office equipment, computing devices, automatic design, in particular, for the manufacture of photomasks

FIELD: machine engineering, working articles with complex surface profile.

SUBSTANCE: method is realized after three-dimensional orientation of tool in the form of cutter and setting its front surface by preset initial angle relative to worked surface before starting planing process. Mutual motion of article and tool is realized during working process according to predetermined program at least along two orthogonal coordinate axes X, Y. When direction of projection of speed vector of relative motion of tool onto plane including coordinate axes changes, spatial position of front surface of tool is varied relative to its previous position in such a way that to keep initial inclination angle of front surface relative to plane that crosses plane including X,Y coordinates and is oriented in parallel to projection of vector of instantaneous speed of tool onto plane including said coordinate axes. In order to realize it, worked article and(or) tool is turned according to angular coordinate C around respective axes oriented normally to plane including coordinate axes and passing through one apex of tool. In order to enhance efficiency and to increase useful life period of tool, at end of each pass tool is turned out by 180°. Simultaneously respective cutting edge of tool is shifted to zone of removed allowance by feed value without contact of cutting edges of tool and its back face with material of article. Then allowance is removed in reverse direction by means of other lateral cutting edge of tool. Planing process is performed in desired range of technological parameters such as tool motion speed, tool acceleration till time moment of achieving target cutting speed of tool, effort acting upon tool in direction of cutting speed vector.

EFFECT: enhanced efficiency of planing, increased period of tool useful life.

3 cl, 5 dwg

FIELD: different materials cutting off processes and equipment.

SUBSTANCE: each cavity of double-way feed drive hydraulic cylinder is connected with pressure controller. Rod-free cavity of said hydraulic cylinder is connected with throttle having regulator.

EFFECT: simplified design of machine tool.

1 dwg

Bandsaw machine // 2211120
The invention relates to machine tools, namely, devices bandsaw machines for cutting various materials, such as ferrous metals, in particular, with hydraulic drive

Bandsaw machine // 2211120
The invention relates to machine tools, namely, devices bandsaw machines for cutting various materials, such as ferrous metals, in particular, with hydraulic drive

The invention relates to the manufacture of road-building tool and tool used for woodworking

Bandsaw machine // 2151032
The invention relates to a device for cutting various materials

Bandsaw machine // 2151032
The invention relates to a device for cutting various materials

The invention relates to the cutting of blocks of solid materials, in particular of semiconductor, glass and ceramics, on a plate by the impact of freely supplied abrasive and endless circulating solid support member

The invention relates to a method and apparatus for lubricating and cooling the cutters and/or workpieces during metallurgical processing, whereby the cutters or the workpiece serves at least two different immiscible with one another liquid using liquid environment to reduce the friction between the cutter and the workpiece or shavings; a fluid for cooling the cutting blades, blanks, tool holder, and, if necessary, chip; each of the two environments (a, b) accumulate or are treated separately from each other in a suitable container; every Wednesday (a, b) supplied from a suitable container through a separate pipeline to the body (3, 4) and from him to the workpiece being machined (15) or used cutting blade

FIELD: metal working in number program controlled machines.

SUBSTANCE: cutter includes active portion and stem. Cutter apex is arranged in its axis belonging to front surface. Main and trailing back faces are equally inclined relative to cutter axis and they cross front surface by positive back angles relative to main and trailing cutting edges having their own angles in plan view. Trailing back surfaces form second pair of surfaces inclined by the same angles relative to cutter axis. Inclination angles of main and trailing back surfaces relative to cutter axis is determined by value of back angle of main cutting edge. Trailing back surfaces are inclined by less angles relative to cutter axis. Active portion of cutter has at least with two chamfers equally inclined relative to cutter axis.

EFFECT: enhanced strength of cutter, improved stability of manufacturing process.

5 cl, 19 dwg

Up!