Proceedings of the
World Congress on Micro and Nano Manufacturing (WCMNM 2022 )
19–22 September 2022, Lueven, Belgium
doi:10.3850/978-981-18-5180-3_RP58-0016
Punch-Edge Sharpening Effect on Work Hardening and Iron Losses in Shearing Non-Oriented Electrical Steel Sheets
1Graduate School of Engineering, University of Toyama, Gofuku, Toyama 930-8555, Japan
2Komatsu-Seiki Kosakusho Co. LTD., Suwa-City, Nagano 392-0012, Japan
3Surface Engineering Design Laboratory, SIT, 3-15-10 Minami-Rokugo, Ota-City, Tokyo 144-0045, Japan
4National Institute of Advanced Industrial Science and Technology, Tsukuba-City, Ibaraki 305-8564
5Faculty of Engineering, University of Toyama, Toyama 930-8555, Japan
ABSTRACT
Non-oriented electrical steel sheets were punched out to describe the effect of punch edge configuration on the piercing behaviour. Three punches were prepared to have the mechanically ground, the ion-polished and the nanostructured surfaces. The work hardening area in the cross-section of hole and the iron loss of pierced specimens were utilized as a measure to evaluate the piercing process using three punches. Therefore, we report the effects of state of tool edge on the interior of pierced specimens.
Keywords: Punching, Nanostructure, Non-Oriented Electrical Steel Sheet.
1Graduate School of Engineering, University of Toyama, Gofuku, Toyama 930-8555, Japan
2Komatsu-Seiki Kosakusho Co. LTD., Suwa-City, Nagano 392-0012, Japan
3Surface Engineering Design Laboratory, SIT, 3-15-10 Minami-Rokugo, Ota-City, Tokyo 144-0045, Japan
4National Institute of Advanced Industrial Science and Technology, Tsukuba-City, Ibaraki 305-8564
5Faculty of Engineering, University of Toyama, Toyama 930-8555, Japan
ABSTRACT
Non-oriented electrical steel sheets were punched out to describe the effect of punch edge configuration on the piercing behaviour. Three punches were prepared to have the mechanically ground, the ion-polished and the nanostructured surfaces. The work hardening area in the cross-section of hole and the iron loss of pierced specimens were utilized as a measure to evaluate the piercing process using three punches. Therefore, we report the effects of state of tool edge on the interior of pierced specimens.
Keywords: Punching, Nanostructure, Non-Oriented Electrical Steel Sheet.
