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Machining process of thin-wall groove milling stainless steel part

A technology of parts processing and stainless steel, which is applied in the field of thin-wall milling stainless steel parts processing technology, can solve the problems that the thin-wall shielding ring is easy to deform and cannot meet the design requirements, etc., and achieves the effect of low manufacturing cost and convenient operation

Inactive Publication Date: 2015-01-21
ANHUI YINGLIU ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the present invention is to provide a thin-wall milling groove stainless steel part processing technology, which solves the problems that the existing thin-wall shielding ring is easy to deform after processing and cannot meet the design requirements.

Method used

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  • Machining process of thin-wall groove milling stainless steel part
  • Machining process of thin-wall groove milling stainless steel part
  • Machining process of thin-wall groove milling stainless steel part

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Experimental program
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Embodiment 1

[0029] ANSI310, high-chromium-nickel austenitic stainless steel material is selected, and a thin-walled shielding ring casting blank is first formed and heat-treated. Then, carry out rough machining→natural aging treatment→semi-finishing→rough milling slot→finishing→finish milling slot according to the processing technology described in the present invention, wherein the natural aging treatment is placed for 4 days, and the finally obtained thin-walled shielding ring has a size such as Figure 2 to Figure 5 shown. in, figure 2 is the perspective view of the thin-walled shielding ring, image 3 for figure 2 Front view of a thin-wall shield ring, Figure 4 then figure 2 Right side view of thin wall shield ring. The six notches 11 of the thin-walled shielding ring have a size of 10.414±0.38mm in width and 9.83±0.1mm in depth. Figure 5 for Figure 4 The enlarged view of the dotted line, where a=0.38±0.127mm, b=3.3±0.5mm, c=1.52±0.38mm, d=7.8±0.2mm, e=12.7±0.5mm.

[003...

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Abstract

The invention discloses a machining process of a thin-wall groove milling stainless steel part. The machining process of the thin-wall groove milling stainless steel part mainly comprises the following steps of heat treatment of a rough casting, rough machining, natural aging processing, subsequent rough groove milling, finish machining and finish groove milling. Through the design of a machining route, the machining process of the thin-wall groove milling stainless steel part reduces production of stress as much as possible, and effectively avoids deformation caused by stress concentration, thereby improving machining precision and the accuracy degree.

Description

technical field [0001] The invention relates to a processing technology of mechanical parts, in particular to a processing technology of thin-wall groove milling stainless steel parts. Background technique [0002] In the development process of a new domestic train, it involves the machining of a shielding ring. The blank of the part is cast and the material is stainless steel. The ratio of inner hole diameter to hole depth is 389.5 / 88.9=4.38, and the minimum wall thickness is 3.3mm. The minimum tolerance of the inner hole is 0.076mm, there are 6 grooves with a width of 9.7mm on the outer circle of the flange, the position of the groove is 0.05mm, and the flatness of the large end face of the flange is 0.13mm. Due to the thin-walled structure of the part itself, the stainless steel material is easy to deform, and the internal stress of the workpiece is large after clamping and processing, it is difficult to meet the design requirements of the part in batch processing on ordi...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 万继升杨先兵汪自海
Owner ANHUI YINGLIU ELECTROMECHANICAL
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