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A processing method of single-sided variable-section automobile frame

A technology for automobile beams and processing methods, which is applied to beams, vehicle parts, and elongated structural members for load-bearing, etc., can solve problems such as springback and distortion of parts, achieve good dimensional accuracy of products, meet performance and lightweight, The effect of solving the rebound distortion problem

Active Publication Date: 2020-03-27
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The variable cross-section girders described in the above patents are all single-piece production methods. figure 1 The processing of the automobile frame with variable cross-section on one side as shown cannot solve the problem of springback distortion of parts after forming of high-strength materials caused by the change of cross-section on one side.

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  • A processing method of single-sided variable-section automobile frame
  • A processing method of single-sided variable-section automobile frame
  • A processing method of single-sided variable-section automobile frame

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Embodiment Construction

[0025] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0026] The processing method of the one-sided variable-section automobile frame of the present invention is used for processing such as figure 1 , Figure 2a ~ Figure 2c As shown in this type of girder, the overall section of the girder sample (or part) is U-shaped with flanging on both sides, and it is composed of more than two equal-section areas and more than one transition area, and its length direction is different. The cross-sectional dimensions at are different, and there is at least one characteristic angle (α A , α B , α C …) are exactly the same, the value range of the characteristic angles (α, β) on both sides is (45°~90°), and the section characteristic widths (hA, hB, hC…) of the equal cross-section area at different positions cannot be exactly the same, that is, double One side is the constant section side 1, and the other fl...

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Abstract

The invention discloses a processing method of one-sided variable cross-section automobile girders. The processing method disclosed by the invention adopts a manner that a left sample piece and a right sample piece are symmetrically processed and formed in a united manner, so that through preformed backward bent section, the problem of spring back compensation for shaping of high-strength materials is solved, and the low-cost manufacturing of the high-strength one-sided girder part can be realized.

Description

technical field [0001] The invention relates to a processing technology of an automobile frame, in particular to a processing method of a single-sided variable-section automobile frame. Background technique [0002] As the key structural parts of the car body, automotive frame parts have an important impact on the service performance of the vehicle. In the actual automobile use environment, the loads at different positions in the length direction of the girder parts are different, so the cross-sectional performance requirements of the girder parts at the corresponding positions are different. The use of the variable cross-section girder can realize the lightweight of the vehicle body while meeting the safety performance requirements. With the continuous improvement of safety and emission requirements, the use of higher strength materials is an effective way to further achieve lightweight. The existing variable cross-section girder parts mostly adopt the stamping method, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D47/01B21D53/88
CPCB21D47/01B21D53/88
Inventor 张骥超石磊肖华
Owner BAOSHAN IRON & STEEL CO LTD