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Hot Stamped Trim Parts

A hot stamping and trimming technology, applied in vehicle parts, manufacturing tools, transportation and packaging, etc., can solve the problems of higher processing costs, impaired productivity, longer processing time, etc., to achieve increased productivity, stable shape, restraint unstable effect

Active Publication Date: 2019-06-04
TOYODA IRON WORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there is a problem that if the entire circumference is cut and removed by laser processing in this way, the processing cost becomes high and the processing time becomes long, thereby impairing productivity.

Method used

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Examples

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Effect test

Embodiment

[0037] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, in the following examples, the drawings are appropriately simplified or deformed for the sake of explanation, and the dimensional ratios, shapes, and the like of each part are not necessarily drawn accurately.

[0038] figure 1 It is two views which show the center pillar reinforcement 10 for vehicles which is one Example of this invention, (a) is a front view seen from the vehicle outer side, (b) is a right side view. in addition, figure 2 yes figure 1 The enlarged cross-sectional view of the II-II arrow in (a), image 3 yes figure 1 Enlarged view of part III in (a), Figure 4 yes figure 1 An enlarged view of another example of Part III in (a), Figure 5 yes figure 1 An enlarged view of the V portion in (a). The center pillar reinforcement 10 is disposed on the right side of the vehicle, has a long vertical shape in the vertical direction o...

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Abstract

The productivity of the hot-stamped trimming parts obtained by cutting and removing the redundant part of the outer periphery by laser processing after forming by hot-press processing is improved. The outer peripheral shape is configured to include the laser trimming line (L1) and the punching trimming line (L2), so it is only necessary to cut and remove the necessary minimum range such as the part that needs post-processing such as the burr generated by laser processing, and the processing cost and / or processing time is reduced and productivity is increased. In addition, the laser trimming line (L1) and the stamping trimming line (L2) are connected via the convex corner (30), so although there is a relative misalignment between the two due to processing errors, the shape of the connection part is still stable, and these Compared with the case where the trimming lines ( L1 ) and ( L2 ) are smoothly connected on a straight line, instability in processing quality due to height differences due to processing errors, protrusions, and the like is suppressed.

Description

technical field [0001] The present invention relates to an improvement of a hot-stamped and trimmed part (English: hot-stamped and trimmed part) obtained by cutting and removing excess peripheral parts by laser processing after being formed by hot pressing (Japanese: hot press processing). Background technique [0002] Since there is a case where after-processing is required due to the occurrence of burrs and the like when the excess portion of the outer periphery is sheared and removed with a press die while performing forming such as bending by hot press working, a method that is passed after hot press working has been proposed. A technical solution for cutting and removing excess peripheral parts by laser processing (refer to Patent Document 1). [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Application Laid-Open No. 9-277072 Contents of the invention [0006] The problem to be solved by the invention [0007] How...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D22/20B21D24/16B21D53/88
CPCB21D24/16B21D53/88B23K26/00B23K26/38B21D22/208B21D28/02B21D22/26
Inventor 横井和彦坂下泰久
Owner TOYODA IRON WORKS CO LTD
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