Junction structure
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsJunji Fujiwara, Tatsuyuki Nakagawa
Life of this patent
Estimating the term…
Abstract
Second member (20) includes a material that is difficult to weld to first member (10). First member (10) is provided with first penetrating part (11) penetrating in a thickness direction. Third member (30) is arc-welded to an inner peripheral surface of first penetrating part (11) and opening surface (10a) of first member (10) via second penetrating part (21) of second member (20). Second member (20) is compressed by flange (31) and first member (10) by solidification contraction of third member (30), and second member (20) is therefore fixed between flange (31) of third member (30) and first member (10).
Claims16
A joining structure joining, to each other, a first member including a metal material, a second member including a material that is different from the first member, and a third member including a filler material welded to the first member, wherein
- the first member has an upper surface and a lower surface opposite to the upper surface,
- the first member includes a first penetrating part penetrating in a thickness direction thereof,
- the first penetrating part extends from the upper surface to the lower surface,
- the second member includes a second penetrating part that opens at a position corresponding to the first penetrating part,
- the third member includes a flange that presses a peripheral edge of the second penetrating part, and is arc-welded, via the second penetrating part, to an inner peripheral surface of the first penetrating part of the first member and an opening surface of the first member opened by the second penetrating part of the second member, and
- the second member is compressed by the flange and the first member by solidification contraction of the third member, and thus the second member is fixed between the flange and the first member.
A joining structure comprising:
- a first member having an upper surface, a lower surface opposite to the upper surface, and a first penetrating part extending from the upper surface to the lower surface, the first member including a metal material;
- a second member including a second penetrating part that opens at a position corresponding to the first penetrating part and is larger than the first penetrating part, and a peripheral edge that defines the second penetrating part, the second member including a material that is different from the metal material of the first member, and disposed on the upper surface of the first member;
- and
- a third member including a welded part arc-welded to an inner peripheral surface of the first penetrating part and a periphery of the first penetrating part on the upper surface of the first member, and a flange connected to the welded part via the second penetrating part and covering the peripheral edge, the third member including a filler material welded to the first member, wherein the second member is compressed by the flange and the first member by solidification contraction of the third member and thus fixed between the flange and the first member.
A joining method comprising:
- preparing a first member that has an upper surface and a lower surface opposite to the upper surface, includes a first penetrating part extending from the upper surface to the lower surface, and includes a metal material;
- preparing a second member that includes a second penetrating part and a peripheral edge defining the second penetrating part, and includes a material that is different from the metal material of the first member;
- arranging the second member on the upper surface of the first member for the second penetrating part to be located corresponding to the first penetrating part and for an opening surface of the first member opened by the second penetrating part of the second member to be formed;
- forming a third member including a filler material welded to the first member by arc-welding to an inner peripheral surface of the first penetrating part of the first member and the opening surface of the first member via the second penetrating part, the third member including a flange that presses the peripheral edge;
- and
- fixing the second member between the flange and the first member by the second member being compressed by the flange and the first member by solidification contraction of the third member.
Dependencies are inferred from the claim text.