Authors:
Takuya Hazama (Sumitomo Electric Sintered Alloy, Ltd., Japan),
Jumpei Hara (PT. Sumiden Sintered Components Indonesia, Indonesia),
Yu Akiyama (Sumitomo Electric Sintered Alloy, Ltd., Japan),
Masato Uozumi (Sumitomo Electric Sintered Alloy, Ltd., Japan),
Kazuhiko Suganaga (Sumitomo Electric Sintered Alloy, Ltd., Japan)
Abstract:
The use of sinter hardening material (SH material) was examined for the purpose of cost reduction by simplifying the part manufacturing process in our company, in response to the fact that many 4WD coupling cam parts adopt a sintering method that allows the cam shape to be formed with a net shape. The SH material has high hardenability, however it is not applicable for parts that require bending fatigue strength due to its low toughness. Accordingly, bending fatigue strength was improved and the required strength of the parts was successfully satisfied by achieving a mixed phase structure of martensite and austenite due to the addition of Ni to SH material.
DOI:
https://doi.org/10.59499/WP225371870