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Yasutomo Ichiyama
Publications - 6
Citations - 29
Yasutomo Ichiyama is an academic researcher. The author has contributed to research in topics: Flash welding & Welding. The author has an hindex of 3, co-authored 6 publications receiving 24 citations.
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Factors affecting flash weldability in high strength steel – a study on toughness improvement of flash welded joints in high strength steel
Yasutomo Ichiyama,Tohru Saito +1 more
TL;DR: In this paper, a study on the factors affecting flash weldability in high strength steel was presented. But the authors focused on toughness improvement of flash welded joints in high-strength steel.
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Welding Phenomena and Process Control in the Flash Welding of Steel Sheets(Report 1). Weld Defects and Evaluation of Weld Quality.
Tohru Saito,Yasutomo Ichiyama +1 more
TL;DR: In this paper, the influence of chemical elements of base material has been investigated on interface quality of flash welds, and it was shown that aluminum, silicon and manganese were major elements of the inclusion, and whose influence were determined to be strong as 10:1:0.01 in the order.
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A Study on Mechanical Properties of the Grain Growth Region in Gold wire Ball Bonding
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Welding Phenomena and Process Control in the Flash Welding of steel sheets(Report 3). Investigation of Upset Process and Development of Control Method for Interface Quality of Welds.
Tohru Saito,Yasutomo Ichiyama +1 more
TL;DR: In this article, the welding machine for experiment was designed so that platen movement for upsetting can be initiated at any desired voltage phase of AC power source, and the influence of upsetting point control on weld interface quality was proved to be greater than that of duration of upset current by conventional current density, i.e. less than 80 A per square millimeter.