Journal Published Online: 09 October 2018
Volume 8, Issue 2

Modified Prototypes of Rotary Arm–Type Test System Using a Small Ball Probe for Determination of Cooling Characteristics of Quenchants



Performances of quenchants have been enhanced and maintained based on their cooling characteristics as determined by specific test systems. A rotary arm–type test system with a small ball probe has been developed for this purpose by making prototypes. The unique concept, derived mainly from a circular motion of a small ball probe in quenchants, was proposed by Tawara in 1941. The prototypes have been realized by current heating, measuring, and mechatronic techniques. The material used for the probe has changed from nickel alloy to platinum to resolve the discoloration and thermal aging problems on the probe surface. The performance of the prototypes has been verified by systematic tests using specific quenchants under some cooling conditions.

Author Information

Arimoto, Kyozo
Arimotech Ltd., Kishiwada, Osaka, Japan
Shimaoka, Mitsuyoshi
National Institute of Technology, Nara College, Yamatokoriyama, Nara, Japan
Ikuta, Fumiaki
Neturen, Co., Ltd., Hiratsuka-shi, Kanagawa, Japan
Pages: 15
Price: $25.00
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Stock #: MPC20180016
ISSN: 2379-1365
DOI: 10.1520/MPC20180016