Title:
重ね接合構造、及び自動車骨格部品
Document Type and Number:
Japanese Patent JP7370150
Kind Code:
B2
Abstract:
To provide a stacked-joint structure of stacked-joint members capable of suppressing breakage of a plate member starting from a hole formed in a non-fused joint when a stacked portion formed by stacking a plurality of plate members together is joined by non-fused joining means.SOLUTION: A stacked-joint structure according to one aspect of the present invention includes: a plurality of stacked plate members; and a plurality of joints arranged in a stacked portion of the plurality of stacked members, the joints being formed by mechanical joining means or friction-agitation point joining means. The plurality of joints have holes through which the mechanical joining means is inserted or holes formed by the friction-agitation point joining. Among the plurality of plate members, a main plate member having the largest product of the plate thickness and the tensile strength has, between the plurality of joints in the stacked portion, a soft portion with a hardness of 80% or less of the hardness of the plate member which includes main soft portions.SELECTED DRAWING: Figure 1
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Inventors:
Hiroki Fujimoto
Yujiro Tatsumi
Yujiro Tatsumi
Application Number:
JP2019060341A
Publication Date:
October 27, 2023
Filing Date:
March 27, 2019
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
F16B5/04; B21J15/00; B23K20/12; B62D27/02; F16B5/08
Domestic Patent References:
| JP2014223669A | ||||
| JP2002274429A |
Attorney, Agent or Firm:
Yasushi Matsunuma
Onami Kazunori
Tomoo Katsumata
Hiroshi Yamaguchi
Koichiro Hotta
Kengo Yamaguchi
Yasuhiro Iida
Shota Iguchi
Onami Kazunori
Tomoo Katsumata
Hiroshi Yamaguchi
Koichiro Hotta
Kengo Yamaguchi
Yasuhiro Iida
Shota Iguchi
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