Novel deep stretching process of curved surface

A surface and process technology, applied in the field of new surface deep drawing process, can solve the problems of mold manufacturing design, high construction requirements, high raw material requirements, and large waste of materials, etc., to improve market competitiveness, low raw material requirements, and stretching. high quality effects

Inactive Publication Date: 2011-11-23
赵少峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is often used when drawing general products, but compared with products that require deep drawing, the stamping process needs to be completed many times, and multiple annealing and tempering treatments are required after stamping. Trouble, low efficiency, high requirements on raw materials, waste of materials, cumbersome steps, relatively low success rate, and poor product quality; at the same time, it has high requirements on mold manufacturing design and construction, which increases additional costs to a certain extent. the cost of
To sum up, the traditional stretching process restricts the production of products to a certain extent, it is difficult to meet market demand, and it is not conducive to the development of enterprises

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0016] The new curved surface deep drawing process described in the embodiment of the present invention closes and welds the opened blank to form a closed structure, and then puts it into a curved or arc-shaped mold, and uses the stamping force of the mold to form and extrude the desired shape at one time. Its specific operation steps include: cutting, closing, welding, shaping of welding seam, pre-reversing and stretching of pressing material.

[0017] Cutting: First, enlarge the stretched product by 5mm on one side, cut out the strip with a shearing machine, and then use a mold made of 45# or Cr12 or Cr12 to punch the strip into a developed product with a punching machine Size; in stamping, relatively large stretched parts, in order to save material and reduce the manufacturing cost and volume of the mold, the unfolded material can be decomposed into double or multiple pieces, and then combined into a complete one by welding The prototype of the product is developed, so that...

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PUM

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Abstract

The invention relates to a novel deep stretching process of a curved surface. A structure of a stretching material of a product is cut by adopting special equipment; the stretching material is welded into a closed structure; after a welding seam is reshaped and a swaging is subjected to reversal pretreatment, a rudiment of the treated closed product is put in the curved surface or a cambered mould; and a required shape is pressed by utilizing the stamping press of the mould through one-time forming. The novel deep stretching process comprises the specific operating steps: cutting, closing, welding, the reshaping of the welding seam and the reversal pretreatment and the stretching of the swaging. The novel deep stretching process has the advantages of simple process, convenient operation, one-time stretch forming, time saving, improved efficiency, needlessness of repeatedly annealing and tempering treatment, high stretching quality, low requirement on raw materials, accurate shape of aformed product without the defects, of stretching pieces, such as surface dents, salient points, avulsion and the like, and low comprehensive cost.

Description

technical field [0001] The invention relates to a novel curved surface deep drawing process. Background technique [0002] In the traditional stretching process, most of the strip blanks are simply processed directly and then stamped. This process is often used when drawing general products, but compared with products that require deep drawing, the stamping process needs to be completed many times, and multiple annealing and tempering treatments are required after stamping. Trouble, low efficiency, high requirements on raw materials, waste of materials, cumbersome steps, relatively low success rate, and poor product quality; at the same time, it has high requirements on mold manufacturing design and construction, which increases additional costs to a certain extent. the cost of. To sum up, the traditional stretching process restricts the production of products to a certain extent, which is difficult to meet market demand and is not conducive to the development of enterpris...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D22/26B21D51/02
Inventor 赵少峰
Owner 赵少峰
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