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Free forging method for central hollow trapezoidal forged piece

A hollow and trapezoidal technology, applied in the field of forging, can solve the problems of low material utilization and high cost

Active Publication Date: 2016-07-06
SHAANXI HONGYUAN AVIATION FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the central hollow trapezoidal forging adopts the method of free forging to solve the problem of streamline in the forging process and the problem of low material utilization rate and high cost

Method used

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Embodiment Construction

[0013] The present invention is described in further detail below by specific embodiment:

[0014] A certain type of part is a central hollow trapezoidal forging of 30CrMoSiA material, which must be processed by free forging; the streamline requirements of the required hollow sub-shaped forgings are guaranteed, and the size of the forgings is: the height of the hollow trapezoidal outer contour forging is 380mm, the top and bottom of the outer contour are 200mm and 480mm respectively, and the thickness of the plane trapezoid is 80mm; The mold thickness is 80mm;

[0015] Select the 30CrMoSiA bar material of diameter 180mm, long 300mm according to above-mentioned requirement; Adopt forging method of the present invention:

[0016] Step 1: Prefabricate a dedicated lower groove from 5CrNiMo mold steel. The groove of the lower mold groove is longer than the positive concave groove with a length of 480mm and a width of 80mm; the height is 220mm, and the outer dimensions are the corr...

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Abstract

The invention discloses a free forging method for a central hollow trapezoidal forged piece. The problem of the streamline and the problem of the high cost in the forging process of the central hollow trapezoidal forged piece are solved by means of an effective tool through the free forging method. In this way, the streamline requirement of the central hollow trapezoidal forged piece is met, and the forging cost of the central hollow trapezoidal forged piece is reduced.

Description

technical field [0001] The invention belongs to the technical field of forging, and mainly relates to a free forging method of a central hollow trapezoidal forging. Background technique [0002] Usually the central hollow trapezoidal forging is prefabricated close to the trapezoidal blank after the bar is heated, and then the center is cut to make the required forging finished product; but due to the above method, the central waste of the central hollow trapezoidal forging increases , and no measures are taken to ensure the streamline of the entire forging during the forging process, the material utilization rate is low and the cost is high, so it is difficult to meet the requirements of the streamline and economic benefits of the central hollow trapezoidal forging. Contents of the invention [0003] The technical problem to be solved by the present invention is: the central hollow trapezoidal forging adopts the method of free forging to solve the problem of streamline in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/02
Inventor 姚彦军郝宏斌李明武明郑建新
Owner SHAANXI HONGYUAN AVIATION FORGING
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