Supporting wheel closed forging process and forging die

A wheel-closed, process technology, applied in the field of forging, can solve the problems of increasing the loss of raw materials, forging force, easy generation of flashing in forgings, and increasing production costs, so as to avoid processing procedures, reduce deformation area, and improve production efficiency Effect

Inactive Publication Date: 2015-09-16
XUZHOU XCMG CRAWLER CHASSIS CO LTD
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the traditional roller forging process adopts open forging, which is easy to produce flash around the forged forgings, which increases the loss of raw material

Method used

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  • Supporting wheel closed forging process and forging die
  • Supporting wheel closed forging process and forging die

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0019] Specific embodiment technological process:

[0020] (1) For blanking, the purchase specification is Φ100 round steel, and the material for band sawing is Φ100×209±1mm;

[0021] (2) Heating, sending the raw material in (1) into a 2000KW intermediate frequency induction heating furnace to heat the bar, and the heating temperature is 1200±30°C;

[0022] (3) Forging, after the material is discharged, first upset the hot bar on a 1600T electric screw press, with a blow energy of 12%, and then pre-forge it, with a blow energy of 28%, and put the pre-forged piece into The closed forging die is used for final forging on the 2500T electric screw press, and the impact energy is 18%, and finally the forging is punched on the 400T mechanical press;

[0023] (4) After normalizing with residual heat, the punched forgings enter the residual heat normaliz...

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PUM

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Abstract

The invention discloses a supporting wheel closed forging process and a forging die, and belongs to the technical field of forging. Blanking is conducted on round steel through a band sawing machine; heating is conducted on a bar material through a medium frequency induction heating furnace; jumping-up and preforging are conducted on the hot bar material on a l600T electric screw press, then the hot bar material is transferred to a 2500T electric screw press to be subjected to finish forging and forming through the closed forging die, and finally punching is finished on a 400T mechanical press; normalizing treatment is conducted on a forge piece generated after punching is conducted; the closed forging die adopted for the process comprises a lower cushion block (2), a lower male die (11), a lower base plate (3), a lower female die insert (5), a lower female die (4), an upper male die (6), an upper female die (7) and an upper cushion block (8). By means of the supporting wheel closed forging process and the forging die, burrs do not exist in the forged forge piece, and the total forge piece deformation area is reduced, so that the forging deformation force is lowered, the raw material utilization rate is increased, the subsequent trimming process is omitted, the product cost is lowered greatly, and product efficiency is improved remarkably.

Description

technical field [0001] The invention relates to a forging process and a forging die, in particular to a roller closed forging process and a forging die, which belong to the technical field of forging. Background technique [0002] Forging is to use the plasticity of the material to deform the material with the help of external force, so as to obtain the forging of the required shape, size and certain organizational properties. [0003] In the existing technology, the traditional roller forging process adopts open forging, which is easy to produce flash around the forged forgings, which increases the loss of raw materials and the forging force required by the equipment, and the subsequent edge trimming process needs to be added , thereby increasing the production cost and making the production efficiency low. Contents of the invention [0004] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a closed-type forging process for ...

Claims

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Application Information

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IPC IPC(8): B21J5/02B21J5/08B21J13/02B21K1/28
Inventor 陈元锋沈渭淇徐轲梁常风吕阳
Owner XUZHOU XCMG CRAWLER CHASSIS CO LTD
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