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Profiling ring rolling forming technology for arc inner table ring-shaped forge piece

A ring forging and forming process technology, applied in the forging field, can solve the problems of large material consumption, low processing efficiency, unreasonable fiber distribution of forgings, etc., and achieve the effect of reasonable streamline distribution and reduced raw material consumption

Inactive Publication Date: 2020-02-11
SHANDONG IRAETA HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The arc-shaped inner platform ring forging is generally made by rectangular ring rolling forming process, and then cut to ensure the size of the arc-shaped inner platform. This process has the characteristics of large material consumption, low processing efficiency and unreasonable fiber distribution of forgings.

Method used

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  • Profiling ring rolling forming technology for arc inner table ring-shaped forge piece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A profiling ring rolling forming process for an arc-shaped inner platform ring forging, comprising the following steps:

[0026] S1, blanking: select round steel made of S355NL, sawing and blanking;

[0027] S2. Heating: put the finished billet into a natural gas heating furnace, and heat it according to the corresponding heating specification. The heating temperature is about 1220 ° C, and the heat preservation is about 5 hours;

[0028] S3, billet making:

[0029] (1) Upsetting, elongating and punching the heated billet to obtain the primary billet;

[0030] (2) Reaming the primary billet;

[0031] (3) Using forming tooling, carry out inner hole pressing on the primary billet after hole expansion to obtain a finished forging billet. The size of the forging billet meets: the rolling ratio of the outer diameter ≤ the rolling ratio of the inner diameter, and the rolling ratio of the upper part is slightly Smaller than the rolling ratio of the inner diameter, the heigh...

Embodiment 2

[0037] S1, blanking: select the steel ingot whose material is S355NL, saw and blank; the rest are exactly the same as in embodiment 1.

[0038] Through the improvement of the present invention, compared with the rectangular ring rolling forming process mentioned in the background art, the material consumption is significantly reduced, and the processing efficiency is also greatly improved.

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Abstract

The invention belongs to the technical field of forging and particularly relates to a profiling ring rolling forming technology for an arc inner table ring-shaped forge piece. The profiling ring rolling forming technology for the arc inner table ring-shaped forge piece comprises the following steps of discharging, heating, blank manufacturing and profiling ring rolling. The blank manufacturing step includes the following steps that firstly, a heated blank is subjected to upsetting, drawing-out and punching, and a primarily manufactured blank is obtained; secondly, the primarily manufactured blank is subjected to broaching; and thirdly, a forming tool is adopted for conducting inner hole table pressing on the broached primarily manufactured blank, and a manufactured forged blank is obtained. The profiling ring rolling forming technology has the beneficial effects that according to the ring-shaped forge piece manufactured by adopting the method, streamline distribution of a body forge piece of the ring-shaped forge piece is reasonable, and raw material consumption is greatly reduced compared with that of a rectangular ring rolling.

Description

technical field [0001] The invention belongs to the technical field of forging, and in particular relates to a profiling ring rolling forming process for an arc-shaped inner platform ring forging. Background technique [0002] The arc-shaped inner platform ring forging is generally made by rectangular ring rolling forming process, and then cut to ensure the size of the arc-shaped inner platform. This process has the characteristics of large material consumption, low processing efficiency and unreasonable fiber distribution of forgings. [0003] Therefore, it is necessary to improve the defects of the above-mentioned rectangular ring rolling forming process, and to invent a process that can significantly reduce material consumption and improve processing efficiency. Contents of the invention [0004] In order to solve the above-mentioned technical problems, the present invention provides a profiling ring rolling forming process for arc-shaped inner platform ring forgings. ...

Claims

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Application Information

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IPC IPC(8): B21J5/00B21K1/76B21H1/06
CPCB21H1/06B21J5/002B21K1/761
Inventor 牛余刚钟宝石牛余兵尚贺军赵峰郑东东赵丽美
Owner SHANDONG IRAETA HEAVY IND