New process for shaping large disk-shaped forging

A new process and forging technology, applied in the new process field of forming large cake forgings, can solve the problems of equipment damage, increase forging times, reduce production efficiency, etc. Effect

Inactive Publication Date: 2010-07-14
CITIC HEAVY INDUSTRIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while controlling the amount of anvil feeding, the equipment will have a large problem of partial load, which will cause great damage to t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] The new forming process of large-scale cake forgings consists of steel ingot upsetting, WHF forging method drawing and cutting, billet pre-upsetting, spinning deformation, rolling forging outer circle, second spinning, furnace heating, air cooling, rolling anvil spinning Composed of steps such as pressing and forming.

Embodiment 2

[0010] In the new process, after being heated in the furnace for a certain period of time, it is air-cooled to a certain temperature for rolling anvil spinning.

Embodiment 3

[0012] In the new process, when the rolling anvil is spinning and forming, the rolling anvil uses a rolling anvil with a length of 3000mm and a width of 400mm. The fan-shaped cloth anvil method is adopted, and the entire anvil is spun along the radial direction of the blank.

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PUM

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Abstract

The invention relates to a new process for shaping a large disk-shaped forging, which comprises the following steps of: upsetting a steel ingot, drawing out and blanking by using a WHF forging method, pre-upsetting the blank, spinning to deform, roll forging the outer circle, spinning for the second time, heating in a furnace, cooling in the air, spinning and shaping on a rolling anvil and the like. The new process decreases the heating number, raises the production efficiency, eliminates the residual micro holes in the inclusion crack repaired by the high temperature diffusion, improves the performance of the internal structure of the forging, ensures the process dimension, avoids the unbalanced loading phenomenon of the device as a result of controlling the anvil feeding in the shaping process of the disk-shaped forging, and eliminates the damage to the device.

Description

technical field [0001] The invention relates to a new technology for forming a forging, in particular to a new technology for forming a large cake forging. Background technique [0002] Cake forgings are characterized by large diameter and low height. The lower the height of the blank during the forming process, the stricter the control of the amount of anvil feeding, so that the internal defects of cake forgings can be avoided and the pass rate of forgings can be improved. However, while controlling the amount of anvil feeding, there will be a large problem of partial load in the equipment, which will cause great damage to the equipment. At the same time, controlling the amount of feeding anvil will reduce production efficiency and increase the number of forging fires. Contents of the invention [0003] In order to reduce damage to equipment during the forming of cake forgings and improve production efficiency, the invention provides a new process for forming large cake f...

Claims

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Application Information

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IPC IPC(8): B21D22/14
Inventor 史宇麟宋玉冰姬立功宋新双
Owner CITIC HEAVY INDUSTRIES CO LTD
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