The method of harvesting a large body of the docking assembly of the spacecraft

 

The invention relates to the processing of metals by pressure and can be used in the manufacture of large parts of the middle taper from the ring to a smaller diameter and a flange of greater diameter. Form the workpiece rotational stretching of the sheet in the form of a disc for one transition with vertically located rotating rim and rolled rollers. Rollers set at an angle to the axis of the rim and with a gap and move down to the sequential formation of the frame and the flange of the vertical shift of the metal billet. The angle of inclination of rolled rollers to the axis of the rim and of the gap is selected depending on the material and thickness of the sheet, as well as the geometric parameters of the workpiece. The speed of rotation of the rim and the injection quantity of rolled rollers is determined from the conditions obtaining in the workpiece deformation, to heat the billet to exclude embrittlement of her material temperature and the education of structural changes and their subsequent fixation in the environment, which is chosen depending on the workpiece material. The result is a decrease of metal and labor. 2 Il.

large parts of the middle taper from the ring to a smaller diameter and a flange of greater diameter.

There is a method of harvesting a large body of the docking Assembly of the spacecraft stamping (Syromyatnikov C. C. Docking device spacecraft. M: mechanical engineering, 1984, S. 76-77). The disadvantage of this method is the technological complexity of manufacturing, low utilization rate of the metal, most metal.

The technical objective of the proposed invention is the reduction of metal consumption, increase the utilization of the metal, reducing the complexity when using the simplest procurement list.

This technical problem is solved by harvesting large body docking Assembly of a spacecraft having a frame and a flange located, respectively, smaller and larger diameters, the formation of its rotational stretching of the sheet in the form of a disc for one transition with vertically rotating rim and rolled rollers set at an angle to the axis of the rim and with a gap, moving from top to bottom with sequential formation of the frame and the flange of the vertical shift of the metal billet. The amount of tilt of rolled rollers to the axis of the rim and the size of the gap head the guise of filing of rolled rollers is determined from the conditions obtaining in the workpiece deformation, to heat the billet to exclude embrittlement of her material temperature and the education of structural changes and their subsequent fixation in the environment, which is chosen depending on the workpiece material. Rolled the rollers are fed from the top down, the hood is made from the frame to the flange.

The invention is illustrated in the drawing, where Fig.1 shows the mounting disk and the location of rolled rollers, and Fig.2 - procurement of large docking Assembly of the spacecraft in the incision to a location on the frame.

The method of harvesting a large body of the docking Assembly of the spacecraft rotary extractor is as follows.

The disk diameter mounted on the frame, axial clamping clip. Rolled rollers mounted in the same plane at an angle to the axis of the frame and at a distance from each other equal to the diameter of the upper frame. The angle of the axis of the rollers to the axis of the rim is calculated and depends on the material, the thickness of the disk and the geometry of the resulting workpiece (taper, the length of the cylindrical part). Rotary extractor is made by forming a first frame having a cylindrical part, then the tapered part of the Cove is calculated to create the degree and speed of deformation, in which the heating of the workpiece occurs to a certain extent, without causing embrittlement. During rotation of the extrusion strictly monitor the temperature of the workpiece. After conducting rotary hoods produce fixation strength characteristics, duration, and the environment in which it is produced, depends on the type of material. This is followed by a heat treatment and cutting of the processing of the obtained billet.

An example of the method.

The disk diameter 2050 mm, thickness 50 mm with a Central hole with a diameter of 700 mm mounted on the frame and clamp the axial clamp.

Rotary extractor carried out on the sliding mill with software control with vertical structure, with the effort rolled on the rollers 100 ton-force.

The disk diameter 2050 mm, thickness 50 mm with a Central hole with a diameter of 700 mm mounted on the frame and is clamped by the clamp. For rotating hoods use two rolled roller installed in the plane perpendicular to the axis of rotation of the workpiece through 180° on the diameter of the upper frame. The disc - alloy “1201”. Rotary hood start from the top down, from the smaller diameter to the larger one. Rolled the rollers move the vertical shift of the metal to size 20 mm Processing is performed on the mill with software control for one transition. The degree and rate of deformation, the speed of rotation of the rim and the injection quantity of rolled rollers and the heating temperature of the workpiece are selected to obtain high mechanical properties in 1.5 times, to improve the structure in the form of reduced levels of “grain” in 1,5-2 times. The angle of inclination of the axis of rolled rollers to the axis of the frame is equal to 45°. The degree of deformation ranges from 40 to 50%. When installing rolled rollers difference gap between the rollers is not more than 0.05 mm After conducting rotary extraction is performed thermal and turning blanks. The gap in time between the two operations does not exceed a few hours. During rotation of the extrusion monitor the temperature of the workpiece so that the heat does not exceed the temperature, after which will embrittlement of the latter. The treatment mode is chosen so as to capture structural changes.

This method of harvesting large body docking Assembly of the spacecraft can significantly reduce labor intensity, improve significantly the utilization factor, the strength characteristics and structset flange.

The implementation of this method has allowed us to create the head of the rocket, which have the best combination of weight and strength characteristics for these products.

Claims

The method of harvesting a large body of the docking Assembly of a spacecraft having a frame and a flange located respectively at the lower and larger diameters, including the formation of billets, subsequent heat treatment and cutting of the processing, wherein the workpiece is formed by a rotary hood of the sheet in the form of a disc for one transition with vertically located rotating rim and rolled rollers, which are mounted at an angle to the axis of the rim and with a gap and move down to the sequential formation of the frame and the flange of the vertical shift of the metal workpiece, thus the angle of inclination of rolled rollers to the axis of the rim and of the gap is selected depending on the material and thickness of the sheet, as well as the geometric parameters of the workpiece and the speed of rotation of the rim and the injection quantity of rolled rollers is determined from the conditions obtaining in the workpiece deformation, to heat the billet to exclude Krup is e, which is chosen depending on the workpiece material.



 

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FIELD: plastic working of metals.

SUBSTANCE: method for making ogival envelope by multi-transition spinning of sheet blank mounted in rotating mandrel at lengthwise motion of spinning tool mounted with gap relative to said mandrel. Gap between spinning tool and mandrel for any point of envelope profile is corrected by value determined according to relation given in claims of invention while taking into account corrections calculated for first envelope.

EFFECT: lowered value of wall thickness difference and mass, enhanced accuracy of geometry of envelope.

1 dwg

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