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Thin-wall sheet metal part stamping molding method

A technology of stamping and sheet metal parts, applied in the direction of forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems of reducing manufacturing costs, affecting the reliability of parts, and shortening the manufacturing process of parts, so as to reduce the manufacturing cost of parts, The effect of eliminating potential safety hazards, huge economic value and social value

Inactive Publication Date: 2017-05-31
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key is to solve the problem that the welding seam in the manufacture of thin-walled sheet metal parts affects the reliability of the part. The purpose is to realize the overall stamping of this type of part and cancel the circular weld seam, thereby eliminating the safety hazards caused by the weld seam. At the same time shorten the manufacturing process of parts and reduce manufacturing costs

Method used

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  • Thin-wall sheet metal part stamping molding method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] A thin-walled sheet metal part stamping forming method, the material of the thin-walled sheet metal part 2 as the workpiece is 0Cr17Ni4Cu4Nb stainless steel plate; the minimum forming transfer radius of the thin-walled sheet metal part 2 is R1mm; The rough outline of the overall blank of the wall sheet metal part is pre-processed, and the size of the pre-processed semi-finished product is not yet available, especially the small curvature bending deformation still needs to be dealt with; 0Cr17Ni4Cu4Nb stainless steel plate, the material room temperature stamping performance is poor, and the room temperature elongation is not 20%, according to the test, the maximum drawing ratio of 0Cr17Ni4Cu4Nb stainless steel plate with a thickness of 1mm is 1.25-1.3 for ordinary stamping and deep drawing. The forming deformation of this part is relatively large, and its drawing ratio exceeds 1.5 through calculation, and the minimum forming transfer radius of the part is only R1; See f...

Embodiment 2

[0050] The content of this embodiment is basically the same as that of Embodiment 1, the difference is that:

[0051] A thin-walled sheet metal part stamping forming method, the material of the thin-walled sheet metal part 2 as the workpiece is 0Cr17Ni4Cu4Nb stainless steel plate; the minimum forming transfer radius of the thin-walled sheet metal part 2 is R1mm; The rough outline of the overall blank of the wall sheet metal part is pre-processed, and the size of the pre-processed semi-finished product is not yet available, especially the small curvature bending deformation still needs to be dealt with; 0Cr17Ni4Cu4Nb stainless steel plate, the material room temperature stamping performance is poor, and the room temperature elongation is not 20%, according to the test, the maximum drawing ratio of 0Cr17Ni4Cu4Nb stainless steel plate with a thickness of 1mm is 1.25-1.3 for ordinary stamping and deep drawing. The forming deformation of this part is relatively large, and its drawin...

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Abstract

The invention discloses a thin-wall sheet metal part stamping molding method which comprises the following steps: firstly, pre-machining a general outline of an overall thin-wall sheet metal part blank in a front procedure, and performing stamping molding machining on a half finished product of the thin-wall sheet metal part to be machined by using a special overall stamping molding correction mold, thereby obtaining a qualified product, wherein the special overall stamping molding correction mold consists of a concave mold (1), a thin-wall sheet metal part (2), a piston cylinder (13), a lower mold plate (5), a cavity (9) and a step-up piston (10); the cavity (9) for accommodating a viscous medium is formed in the center of the lower mold plate (5); the step-up piston (10) for exerting pressure to the viscous medium is arranged on the cavity (9). By adopting the thin-wall sheet metal part stamping molding method, overall stamping molding is achieved, argon arc welding joints are avoided, the part appearance and surface quality can be improved, and potential safety hazard can be eliminated. The thin-wall sheet metal part stamping molding method has relatively great predictable economic values and social values.

Description

technical field [0001] The invention relates to the technical scheme design and application technical field of stamping and forming of thin-walled sheet metal parts, and in particular provides a method for stamping and forming of thin-walled sheet metal parts. Background technique [0002] A thin-walled sheet metal part is a stamping part made of a new material 0Cr17Ni4Cu4Nb stainless steel sheet, which belongs to a functional component and has high requirements for the manufacturing quality and reliability of the part. 0Cr17Ni4Cu4Nb is a martensitic precipitation hardening stainless steel with poor stamping performance at room temperature and room temperature elongation of no more than 20%. According to the test, the maximum drawing ratio of 0Cr17Ni4Cu4Nb stainless steel sheet with a thickness of 1mm is 1.25-1.3 for ordinary stamping and deep drawing. The forming deformation of this part is relatively large, and its drawing ratio exceeds 1.5 through calculation, and the min...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D35/00B21D37/10B21D26/021B21D26/031B21D3/16C21D1/26
CPCB21D35/002B21D3/16B21D26/021B21D26/031B21D37/10C21D1/26
Inventor 杨踊高铁军杨泽宇蔡晋卢海涛
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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