Free forging method of n-shaped forge piece

A door-shaped and forging technology, which is applied in the forging field and can solve problems such as forging costs

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

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the door-shaped forging adopts the free forging method to solve the streamline problem and the forging cost problem in the forging process

Method used

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Embodiment Construction

[0010] The present invention is described in further detail below by specific embodiment:

[0011] A certain type of door-shaped forging made of 30Ni4CrMoA material must be processed by free forging; the coaxiality of the required door-shaped forging must ensure the streamline requirements, and the size of the forging is: the upper frame of the door-shaped forging is The height is 110mm, the upper and lower bottoms are 120mm and 310mm respectively, and the thickness of the plane trapezoid is 130mm; the two sides of the door forging are cuboids with a height of 320mm×45mm×100mm, and the top of the inner frame is transitioned with an arc of R100mm.

[0012] Select the 30Ni4CrMoA bar material with diameter 150mm and length 405mm according to the above-mentioned requirements; adopt the forging method of the present invention: at first by 5CrNiMo mold steel prefabricated door type two-legged bench frock. The whole of the door-shaped bench is in the shape of a mouth without a line. ...

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Abstract

The invention belongs to the technical field of forging, and relates to a free forging method of an n-shaped forge piece. A whole body door type two-leg wooden bench is prefabricated, a bar is heated and chamfered, a cuboid which is not chamfered is drawn out, a puncher pin is selected for central punching, and is used for hole expansion, and the door type two-leg wooden bench special for an unequal hole-provided hexagon obtained after hole expansion lies down to draw out two longest sides of the hexagon to the required size of the forge piece; the sides are corrected to meet the proper thickness requirement, and forging of the n-shaped forge piece is completed; and an effective tool and the free forging method are adopted to solve the streamline problem in the forging process of the n-shaped forge piece and the high-cost problem of the forge piece. Accordingly, the streamline requirement of the n-shaped forge piece is ensured, and the forging cost is reduced.

Description

technical field [0001] The invention relates to the technical field of forging, in particular to a free forging method for a gate-shaped forging. Background technique [0002] Usually, the door-shaped forgings are prefabricated by two upper and lower molds after the bar is heated. The lower mold cavity of the mold is the outer shape of the head of the forging, and the lower mold cavity of the mold is the inner shape of the head of the forging. The bar is free forged and upset to form a cake, and then formed by the above mold, and then the two leg cadres of the door-shaped forging are pulled out after free forging, and then the special mold is designed for die forging to form a finished forging; but Because in the above method, the two arms and the head of the door-shaped forging are pre-forged separately, and no measures are taken to ensure the streamline of the entire forging during the forging process, the cost of the forging is high, the process is many, the number of hea...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B21J5/00
Inventor姚彦军郝宏斌李明秦卫东冀胜利
OwnerSHAANXI HONGYUAN AVIATION FORGING