Development of a cold spot joining method that enables sound joining of carbon steel below the A₁ temperature

Aibara, Takumi; Morisada, Yoshiaki; Fujii, Hidetoshi

Science and Technology of Welding and Joining, 2023, 28(9), 964-973

Number of Access:386（2025-11-20 12:58 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/94546

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Title
Development of a cold spot joining method that enables sound joining of carbon steel below the A₁ temperature
Creator
CreatorName
Aibara, Takumi
NRID
1000000416356 1000000416356
researchmap permalink
morisada morisada
CreatorName
Morisada, Yoshiaki
NRID
1000000247230 1000000247230
ORCID
0000-0002-5023-3844 0000-0002-5023-3844
researchmap permalink
read0051741 read0051741
Scopus Author ID
7403071460 7403071460
CreatorName
Fujii, Hidetoshi
Subject
carbon steel
mechanical properties
microstructure
non-transformation joining
pressure control
solid-state joining
spot joining method
Description
This is an Accepted Manuscript of an article published by Taylor & Francis in Science and Technology of Welding and Joining on 9 November 2023, available at https://doi.org/10.1080/13621718.2023.2254968.
Abstract
A novel solid-state joining method, which we call cold spot joining (CSJ), was successfully developed. In this joining concept, the material in the vicinity of the interface is plastically deformed using high pressure to form the joining interface, and impurities at the interface are expelled to the outside. Medium-carbon steel sheets were joined using the CSJ method under various process conditions. The joining temperature can be modified by the pressure applied during CSJ. Microstructural observations and hardness distributions revealed that proper pressurisation led to a joining temperature below the A1 point and prevented the formation of brittle martensitic phase. A sound S45C joint showing plug rupture at the base metal under both tensile shear and cross-tension tests was successfully fabricated by providing appropriate applied pressure and energising conditions.
Publisher
Taylor and Francis Ltd.
Source Title
Science and Technology of Welding and Joining
Volume (Issue)
28(9)
Page
964-973
Date of Issued
2023-11-09
Language
English
Handle URL
https://hdl.handle.net/11094/94546
PISSN
13621718
eISSN
17432936
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1080/13621718.2023.2254968
Access Rights
open access
CopyRight
© 2023 Institute of Materials, Minerals and Mining. Published by Taylor & Francis on behalf of the Institute.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article