Title:
ELEMENT, FRICTION ELEMENT WELDING METHOD, AND METHOD FOR MANUFACTURING FRICTION ELEMENT WELDED JOINT
Document Type and Number:
WIPO Patent Application WO/2022/202788
Kind Code:
A1
Abstract:
The objective of the present invention is to provide an element for friction element welding. For applying friction element welding to a plate set comprising two or more metal plates, there is used an element provided with a cylindrical mandrel that is press-fitted to the plate set; a disc-shaped collar arranged on an upper end surface of the mandrel; and a conical pin extending from a lower end surface of the mandrel, a plurality of fluidized metal discharge grooves each in a spiral shape are provided in a flat region which is of the lower end surface of the mandrel and is other than the region of the pin. The element may have a columnar-shaped mandrel, a lower end surface of the mandrel may be formed to present a conical shape with an apex angle of αm, and, on the surface presenting the conical shape, at least one pair of cutting-chip discharge grooves each in a curved shape may be formed from the apex or a plurality of cutting blades may additionally be formed
Inventors:
MUNEMURA NAOAKI (JP)
OKITA YASUAKI (JP)
MATSUDA HIROSHI (JP)
MURAKAMI YOSHIAKI (JP)
OKITA YASUAKI (JP)
MATSUDA HIROSHI (JP)
MURAKAMI YOSHIAKI (JP)
Application Number:
PCT/JP2022/013081
Publication Date:
September 29, 2022
Filing Date:
March 22, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K20/12
Domestic Patent References:
| WO2020256030A1 | 2020-12-24 |
Foreign References:
| CN109483042A | 2019-03-19 | |||
| JP2021504147A | 2021-02-15 | |||
| JP2007196291A | 2007-08-09 | |||
| JP2009208138A | 2009-09-17 | |||
| JP2013527804W |
Other References:
JAMIE D. SKOVRON, BRANDT J. RUSZKIEWICZ, LAINE MEARS: "INVESTIGATION OF THE CLEANING AND WELDING STEPS FROM THE FRICTION ELEMENT WELDING PROCESS", 12TH INTERNATIONAL MANUFACTURING SCIENCE AND ENGINEERING CONFERENCE COLLOCATED WITH THE JSME/ASME 2017 6TH INTERNATIONAL CONFERENCE ON MATERIALS AND PROCESSING
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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