Invention Grant
- Patent Title: Forming device, forming method, and metal pipe
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Application No.: US17015898Application Date: 2020-09-09
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Publication No.: US11440074B2Publication Date: 2022-09-13
- Inventor: Akihiro Ide , Masayuki Ishizuka , Norieda Ueno , Kimihiro Nogiwa
- Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.
- Applicant Address: JP Tokyo
- Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
- Current Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Michael Best & Friedrich LLP
- Priority: JPJP2018-043312 20180309
- Main IPC: B21D26/00
- IPC: B21D26/00 ; B21D26/033 ; F16L9/00 ; F16L9/02 ; B21D26/047
Abstract:
A forming device which expands a metal pipe material to form a metal pipe having a pipe portion and a flange portion includes a hardness lowering portion which lowers a hardness of the flange portion to be lower than a hardness of the pipe portion.
Information query
