Drawing method for aluminum plate part

A technology for parts and aluminum plates, which is applied in the field of stamping dies for automotive panels, can solve problems such as prolonging the time for customer negotiation and communication, and achieve the effects of avoiding wrinkling and cracking, improving the pass rate, and reducing thinning

Inactive Publication Date: 2017-09-15
泊头市兴达汽车模具制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the entire design phase will extend the time for consultation and communication with customers

Method used

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  • Drawing method for aluminum plate part
  • Drawing method for aluminum plate part
  • Drawing method for aluminum plate part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: as Figure 5 As shown, the area within the first-order drawing boundary line 5 of the part 1 is the first-order drawing area, and the area between the second-order drawing boundary line 7 of the part 1 and the first-order drawing boundary line 5 of the part 1 is the area of ​​the part 1 In the second-order drawing area, the thinning of the first-order drawing is set to 15%, the wrinkle coefficient is 2, the thinning rate of the second-order drawing is set to 13%, the wrinkle coefficient is 2, and the qualified rate of the product after forming is 98%. Above, the pass rate of the previous drawing was about 75%, which increased the pass rate by more than 20%.

Embodiment 2

[0042] Embodiment 2: as Figure 6 As shown, the area within the first-order drawing boundary line 8 of the part 2 is the first-order drawing area, and the area between the second-order drawing boundary line 9 of the part 2 and the first-order drawing boundary line 8 of the part 2 is the area of ​​the part 2 In the second-order drawing area, the thinning of the first-order drawing is set to 14%, the wrinkle rate is set to 2.8, the thinning rate of the second-order drawing is set to 13%, the wrinkle coefficient is 3, and the pass rate of the product after forming is 98. % or more, the pass rate of the previous sequence drawing was about 75%, which increased the pass rate by more than 20%.

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Abstract

The invention provides a drawing method for aluminum plate parts, which belongs to the field of stamping dies for automobile panels, including the first step: dividing the first-order drawing area and the second-order drawing area; the second step: according to the material of the part Design the blank holder for drawing; the third step: place the workpiece material on the blank holder to complete the forming of the first-order drawing area of ​​the workpiece; the fourth step: according to the first-order drawing divided in the first step Design the binder core in the area, and the binder core is fixedly connected with the upper mold; the fifth step: the material of the part drawn in one sequence is placed on the lower mold and the blank holder, and the binder core is closed with the lower mold , the formed part in the fourth step is used as the pressing area and no longer participates in the secondary molding. The upper mold moves downward to close with the blank holder first and the two move downward together until it is closed with the lower mold. Secondary drawing area forming. The present invention adopts the second-order drawing to make the molding uniform and avoid the phenomenon of wrinkling and cracking.

Description

technical field [0001] The invention belongs to the field of stamping dies for automobile cover parts, in particular to a drawing method for aluminum plate products. Background technique [0002] With the requirement of lightweight automotive panels, more and more aluminum parts are used in the design of automotive panels. Due to the special properties of the aluminum plate, more complex parts cannot be formed by one-time single-action drawing. [0003] The method adopted at this stage is mainly the traditional single-action drawing, and its disadvantages are as follows: [0004] 1) Due to the low yield strength and poor tensile capacity of the aluminum plate, serious wrinkling and cracking occur during the forming process of the product, making it difficult to form the product. [0005] 2), the traditional solution is: a. Require the product to change the material with better performance, and need to confirm the possibility of material change; b. Negotiate with the custom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/22
CPCB21D22/22
Inventor 李丽康春华贾鑫尹永铎赵博
Owner 泊头市兴达汽车模具制造有限公司
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