Thickened holes edge including compressed rollover for improving tensile fatigue strength of thick sheet

• Main Authors: Zamzuri, Hamedon, Yohei, Abe, Ken-Ichiro, Mori, Naoya, Nakagawa
• Format: Conference or Workshop Item
• Language: English; English
• Published: 2018
• Subjects: TJ Mechanical engineering and machinery; TS Manufactures
• Online Access: http://umpir.ump.edu.my/id/eprint/22082/1/5.%20Thickened%20holes%20edge%20including%20compressed%20rollover%20for%20improving.pdf; http://umpir.ump.edu.my/id/eprint/22082/2/5.1%20Thickened%20holes%20edge%20including%20compressed%20rollover%20for%20improving.pdf; http://umpir.ump.edu.my/id/eprint/22082/

Body-in-white parts are generally punched to make many holes for joining, attachment and reduction in weight. The static strength of high strength steel sheets is almost proportional with the strength of the sheet, whereas the fatigue strength becomes gradually smaller. In addition, onset and progre...