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Machining technology of elongated thin-wall C-shaped tubular parts

A processing technology, slender technology, used in the field of precision parts processing

Active Publication Date: 2014-06-11
GUIZHOU ZUNYI CHI YU PRECISION MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of material rebound and internal stress of the plate, it is difficult to guarantee the design requirements when using plate bending forming, and there is no corresponding specification profile for mechanical processing of pipes, and it is difficult to meet the design requirements for mechanical processing of pipes

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] The technical solutions of the present invention are further described below through examples, but the scope of protection is not limited to the description.

[0025] The processing technology of a thin-walled elongated C-shaped tubular part according to the present invention includes blanking, cold and heat treatment and aging strengthening, rough machining, finishing machining and processing through grooves; the blanking is cutting bar material; The rough machining includes drilling the inner hole and rough turning the outer circle; the finishing includes finishing the outer circle turning, grinding the inner circle and cutting the end face;

[0026] Specifically include the following steps:

[0027] a. Cutting: Choose a round bar made of 0Cr17Ni7Al, and reserve a machining allowance of 2 to 3 mm on both ends and the outer surface;

[0028] b. Cold and heat treatment and aging strengthening:

[0029] b1. First carry out solution treatment at 1000℃~1100℃, then keep a...

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Abstract

The invention discloses a machining technology of elongated thin-wall C-shaped tubular parts and belongs to the technical field of machining precision parts. The machining technology comprises the steps of blanking, hot and cold processing, aging strengthening, rough machining, finish machining and through groove machining, wherein the blanking comprises bar material cutting, the rough machining comprises inner hole drilling and outer circle rough turning, the finish machining comprises outer circle finish turning, inner circle grinding and end surface cutting, the elongated thin-wall C-shaped tubular parts are machined by selecting a bar material, the machining quality and efficiency of the parts can be greatly increased through a concise and practical process route, and the technical difficulties of elongated shaft machining, thin-wall piece machining, deep hole machining, main guide rail groove machining and the like which relate to the elongated thin-wall C-shaped tubular parts can be solved.

Description

technical field [0001] The invention belongs to the technical field of precision parts processing, and relates to a processing technology of thin-walled and slender C-shaped tubular parts. Background technique [0002] In the development of an aero-engine in China, the main rail groove part is involved. The material is 0Cr17Ni7Al. The structural characteristics and specific parameters of the part require more. The wall, the ratio of hole depth to hole diameter is 983 / 28=35.1, and the wall thickness is 1mm. In addition, the structure has a through groove with a width of 13mm along the axial direction. Since this part is processed for the first time in China, there is no mature processing method at present. According to the existing domestic technology, the general idea is to use plate bending and forming and then mechanical processing to form, or use pipes for mechanical processing to obtain parts. However, due to the influence of material rebound and internal stress of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23Q3/00
CPCB23P15/00
Inventor 方建平
Owner GUIZHOU ZUNYI CHI YU PRECISION MACHINERY MFG
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