Joining method for members

Patent metadata

Field	Value
Publication number	US-10744552-B2
Application number	US-201716080515-A
Country	US
Kind code	B2
Filing date	Feb 21, 2017
Priority date	Mar 31, 2016
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

The joining method for members according to the present invention includes: providing an aluminum component including an insertion hole provided with a rib in at least part of an edge part, and a hollow steel pipe; inserting the steel pipe into the insertion hole of the aluminum component; and expanding and deforming the steel pipe to join the steel pipe to the aluminum component by press-fitting.

First claim

The invention claimed is:

1. A joining method for members, comprising:
providing a first member as well as a second member having a hollow shape, the first member including a first wall part and a second wall part facing the first wall part to form a space between the first wall part and the second wall part, the first wall part having an insertion hole, and a rib provided in at least part of an edge part of the insertion hole;
inserting the second member through the insertion hole of the first member until a leading end of the second member contact with the second wall part of the first member; and
expanding and deforming the second member to join the second member to the first member by press-fitting.

2. The joining method for members according to claim 1 , wherein
the first member is an extruded hollow rectangular pipe, and
the rib extends in a longitudinal direction of the first member.

3. The joining method for members according to claim 2 , wherein the rib of the first member is provided only at the edge part of the insertion hole.

4. The joining method for members according to claim 1 , wherein the first member is made of aluminum die-cast material, and the rib is provided at an entire circumference of the edge part.

5. The joining method for members according to claim 1 , wherein the first wall part has a one surface and a second surface opposite side of the one surface, and the rib protrudes from both surfaces of the first wall part.

6. The joining method for members according to claim 1 , further comprising bending outward at least part of an end part of the second member.

7. The joining method according to claim 6 , wherein
the first member includes a second wall part facing the first wall part,
the second wall part protrudes toward the first walls part, and
at least part of the end part of the second member is bent outward by pressing the end part of the second member against the second wall part.

8. The joining method for members according to claim 1 , further comprising disposing an insulation member between the first member and the second member.

9. The joining method for members according to claim 2 , wherein the first wall part has a one surface and a second surface opposite side of the one surface, and the rib protrudes from both surfaces of the first wall part.

10. The joining method for members according to claim 3 , wherein the first wall part has a one surface and a second surface opposite side of the one surface, and the rib protrudes from both surfaces of the first wall part.

11. The joining method for members according to claim 4 , wherein the first wall part has a one surface and a second surface opposite side of the one surface, and the rib protrudes from both surfaces of the first wall part.

12. The joining method for members according to claim 2 , further comprising bending outward at least part of an end part of the second member.

13. The joining method for members according to claim 3 , further comprising bending outward at least part of an end part of the second member.

14. The joining method for members according to claim 4 , further comprising bending outward at least part of an end part of the second member.

15. The joining method according to claim 12 , wherein
the first member includes a second wall part facing the first wall part,
the second wall part protrudes toward the first walls part, and
at least part of the end part of the second member is bent outward by pressing the end part of the second member against the second wall part.

16. The joining method according to claim 13 , wherein
the first member includes a second wall part facing the first wall part,
the second wall part protrudes toward the first walls part, and
at least part of the end part of the second member is bent outward by pressing the end part of the second member against the second wall part.

17. The joining method according to claim 14 , wherein
the first member includes a second wall part facing the first wall part, wherein
the second wall part protrudes toward the first walls part, and wherein
at least part of the end part of the second member is bent outward by pressing the end part of the second member against the second wall part.

18. The joining method for members according to claim 2 , further comprising disposing an insulation member between the first member and the second member.

19. The joining method for members according to claim 3 , further comprising disposing an insulation member between the first member and the second member.

20. The joining method for members according to claim 4 , further comprising disposing an insulation member between the first member and the second member.

21. A joining method for members, comprising:
providing a first member as well as a second member having a hollow shape, the first member including a first wall part in which an insertion hole is formed, and a rib provided in at least part of an edge part of the insertion hole;
inserting the second member into the insertion hole of the first member; and
expanding and deforming the second member to join the second member to the first member by press-fitting, wherein
the first member is an extruded hollow rectangular pipe, and
the rib extends in a longitudinal direction of the first member.

22. A joining method for members, comprising:
providing a first member as well as a second member having a hollow shape, the first member including a first wall part in which an insertion hole is formed, and a rib provided in at least part of an edge part of the insertion hole;
inserting the second member into the insertion hole of the first member;
expanding and deforming the second member to join the second member to the first member by press-fitting; and
disposing an insulation member between the first member and the second member.

Assignees

• Kobe Steel Ltd

Inventors

• Hashimura Toru
• Watanabe Kenichi
• Naitou Junya
• Maeda Yasuhiro

Classifications

• B21D39/044

  perpendicular · CPC title

• F16B4/004

  Press fits, force fits, interference fits, i.e. fits without heat or chemical treatment (F16B4/002 takes precedence) · CPC title

• B21D39/206 Primary

  by axially compressing the elastic material · CPC title

• F16B17/006

  of rods or tubes to sheets or plates · CPC title

• B21D41/028

  expandable mandrels · CPC title