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Forming method for large special-shaped multi-step stainless steel ring piece

A special-shaped ring and multi-step technology, applied in metal processing equipment, metal rolling, etc., can solve the problems of affecting the forming effect, unreasonable matching between blank and mold, unreasonable blank or mold design, etc. many effects

Inactive Publication Date: 2016-03-23
GUIZHOU ANDA AVIATION FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For complex multi-step special-shaped rings, when this method is used for forming, the forming effect will be seriously affected due to the unreasonable design of the blank or the mold, or the unreasonable matching of the blank and the mold during the rolling process.

Method used

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  • Forming method for large special-shaped multi-step stainless steel ring piece
  • Forming method for large special-shaped multi-step stainless steel ring piece
  • Forming method for large special-shaped multi-step stainless steel ring piece

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specific Embodiment approach

[0032] The main chemical element content (percentage by weight) of the steel is: 0.10% to 0.16% of C, 10.50% to 12.00% of Cr, 1.40% to 1.80% of Ni, 1.50% to 2.00% of W, 1.50% to 2.00% of W, The Mo content is 0.35%-0.50%, the V content is 0.18%-0.30%, the Mn content is ≤0.60%, the Si content is ≤0.60%, the S content is ≤0.025%, the P content is ≤0.030%, and the balance is Fe.

[0033] The steps of this method are as follows:

[0034] Step 1: Prepare intermediate ring blank

[0035] Such as figure 1 As shown, according to the structural characteristics of the stainless steel multi-step large-scale special-shaped ring 1, the section of the forging is cut equidistantly layer by layer from the height direction with the help of drawing software, and the cross-sectional area data of the multi-step large-scale special-shaped ring 1 is obtained and a curve 2 is made, as shown in figure 2 As shown, the relationship between the cross-sectional area and height of the multi-step large-s...

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Abstract

The invention discloses a forming method for a large special-shaped multi-step stainless steel ring piece. The method includes the steps that drawing software is adopted to assist in manufacturing a middle ring blank, the middle ring blank is put into a ring rolling mill to be rolled, in the rolling process, the workbench face where the middle ring blank is located is lifted up by 5 mm to 10 mm so that a main roller can firstly make contact with the lower end of the middle ring blank, it is guaranteed that a die cavity is filled with a metal material from bottom to top, and forming of all steps is gradually finished; and bulging is conducted on the rolled large special-shaped multi-step ring piece. The large special-shaped multi-step ring piece can be manufactured through the method, and the rib deviation or rib mess phenomenon can be effectively avoided when the large special-shaped multi-step ring piece is formed, so that the performance of forge pieces is improved. The method is suitable for forming of the large special-shaped multi-step stainless steel ring piece.

Description

technical field [0001] The invention relates to a forming method of a multi-step large-scale special-shaped ring, in particular to a forming method of a stainless steel multi-step large-scale special-shaped ring. Background technique [0002] Special-shaped ring forgings are designed according to the contour of the part, which can effectively improve the utilization rate of materials, obtain ideal performance and streamlines that match the contour of the part. However, in reality, the shape of parts is often strange, and it is difficult to design completely according to the outline of the part. It can only be designed as a special-shaped ring forging that is similar to the cross-section of the part and is relatively simple. Compared with the rectangular ring forging, this method uses more materials. Although the rate has increased, the amount of improvement is limited. At present, most of the special-shaped rings formed by rolling are simple special-shaped rings, for exampl...

Claims

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Application Information

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IPC IPC(8): B21H1/06B21H1/22B21J5/00
CPCB21H1/06B21H1/22B21J5/002
Inventor 欧阳斌成陆祥郭浩王宇锋吴超
Owner GUIZHOU ANDA AVIATION FORGING
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