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Channel stamping and shaping technology in floor

A stamping forming and flooring technology, which is applied in transportation and packaging, vehicle parts, etc., can solve the problems of material waste, increased material flow resistance, and high forming pressure, so as to reduce the forming force and the demand for the tonnage of the press, and reduce the Material flow resistance, the effect of reducing manufacturing costs

Inactive Publication Date: 2019-01-15
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of this solution is that due to most of the content of the one-time formed product, the features of the part all fall on the drawing punch, and the drawing depth of the part is relatively deep. , the flow resistance of the material increases, and there is a risk of cracking and wrinkling during the forming process
In addition, a large amount of materials were wasted in the supplementary part of the process, resulting in a lower material utilization rate; at the same time, due to the large amount of work in the drawing process, the forming pressure is relatively high, and the tonnage of the press required is also large

Method used

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  • Channel stamping and shaping technology in floor
  • Channel stamping and shaping technology in floor
  • Channel stamping and shaping technology in floor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]

[0038] Table 1

[0039] channel in floor

Formability (with or without risk of cracking)

Drawing force / KN

Press selection / t

Original process plan

risky

9400

1500

Optimize process plan

no risk

6600

1000

[0040] Table 2

[0041] Table 1 is a comparison chart of material consumption and material utilization ratio of existing technology and the present invention;

[0042] Table 2 is a comparison chart of the forming force requirements of the prior art and the present invention.

[0043] Through the optimization of the process plan, the original drawing depth was reduced by 20mm to ensure that the drawing forming does not crack. At the same time, since some features of the product are spread on the binder surface, the material consumption of the supplementary part of the process is reduced compared with the original plan. The material consumption is reduced, the material utilization rate reaches 76.67%, ...

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PUM

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Abstract

The invention relates to a channel stamping and shaping technology in the floor, and belongs to the technical field of production of automobile sheet metal parts. The technology comprises the following steps that a channel flashing in the floor and a flange in the outer side of the flashing are laid out in a pressing side in a drawing procedure, flange shaping, trimming and punching are carried out in subsequent procedures, and the channel in the floor is obtained. It is ensured that the drawing depth of the channel in the floor is reduced, fracturing does not occur in drawing shaping, and thefinal product is obtained by flange shaping in the subsequent procedure.

Description

technical field [0001] The invention relates to the technical field of production technology of automobile sheet metal parts, in particular to a stamping and forming process for a channel in a floor. Background technique [0002] In automotive sheet metal parts, the channel in the floor is very common, but the depth of this part is relatively large, and there are many deep-drawing reverse sills and flanges. In the forming process of parts, the choice of stamping process plan is very important. If the plan is unreasonable, it will lead to the coexistence of forming cracks and wrinkles, which will have a great impact on the tonnage selection of the press and material utilization. Such as figure 1 , figure 2 As shown in Fig. 1, when formulating the process plan for the channel part in the general floor, the design principle of the existing forming process plan is to complete all the shapes of the part in as short a process as possible, such as image 3 — Figure 5 As shown...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D53/88
CPCB21D53/88
Inventor 肖海东袁河清伍二周卫国
Owner DONGFENG MOTOR CORP HUBEI
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