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Small flange tubular part non-thinning drawing process

A technology for thinning and deep drawing and cylindrical parts, which is applied in the field of deep drawing technology, can solve the problems of poor product quality and inaccurate process steps of small flange cylindrical parts, so as to improve efficiency, improve deep drawing efficiency, and improve drawing efficiency. The effect of deep rep reduction

Inactive Publication Date: 2014-05-21
MAANSHAN LANHUA MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deep drawing process is widely used in automobile manufacturing, electronic appliances and daily necessities, and it is very important. However, in the production of our company, the current process steps for producing small flange cylindrical parts are not fine, and the quality of the deep drawn products is not good. Close, so it is very necessary to optimize one of the processes

Method used

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Embodiment Construction

[0018] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with examples, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0019] This embodiment provides a non-thinning and deep drawing process for small flange cylindrical parts, which includes the following steps:

[0020] Step 1: Carry out heating and softening treatment on the blank to be drawn;

[0021] Step 2: washing the blank obtained in step 1 with a specific acidic solution;

[0022] Step 3: Apply specified lubricating oil to the surface of the blank obtained in Step 2;

[0023] Step 4: Put the blank obtained in Step 3 into the drawing die for blanking and drawing, and begin to form the shape of the required drawing;

[0024] Step 5: Draw again the blank obtained in step 4 to further increase the depth of the drawn piece, so that the shape of the ...

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Abstract

The invention aims to provide a small flange tubular part non-thinning drawing process. The process includes the following steps that material softening, washing and lubricating are conducted on a blank; the processed blank is placed in a drawing die for four times of drawing; trimming deflashing is conducted; shape correcting is conducted. Final finished products are acquired through the four times of drawing, a series of earlier stage processing of softening, washing and lubricating is conducted before drawing, and then the number of drawing times is reduced, efficiency is improved, materials are softened and lubricated in the drawing process, and then the drawing efficiency can be further improved. The small flange tubular part non-thinning drawing process is easy to operate and suitable for production.

Description

technical field [0001] The invention relates to the field of deep-drawing technology; in particular, it relates to a non-thinning deep-drawing technology for small flange cylindrical parts. Background technique [0002] Deep drawing is essentially the process of gradually transferring the material of the flange part of the fur to the wall of the cylinder. During the transfer process, the material of the flange generates tensile stress in the radial direction due to the effect of the drawing force. The diameter of the part becomes smaller gradually, and the extrusion effect occurs between the materials of the flange part, and the compressive stress is generated in the tangential direction. It is compressed in the direction, the size is reduced, and it is continuously drawn into the cavity of the die to become a cylindrical hollow part. The deep drawing process is widely used in automobile manufacturing, electronic appliances and daily necessities, and it is very important. H...

Claims

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Application Information

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IPC IPC(8): B21D22/20
Inventor 陈坦和徐家平陈玉峰
Owner MAANSHAN LANHUA MACHINERY MFG