@article{oai:nagano-nct.repo.nii.ac.jp:00000411,
 author = {長坂, 明彦 and 杉本, 公一 and 小林, 光征},
 journal = {長野工業高等専門学校紀要},
 month = {Dec},
 note = {application, The effects of warm hole-punching and warm hole-expanding on stretch-flangeability of a TRIP-aided dual-phase (TDP) steel sheet were investigated. Excellent stretch-flangeability, whose value nearly corresponded to that of drilling hole, was performed by warm hole-punching and hole-expanding at about 150℃. The warm punching decreased strain-induced martensite content and/or void initiation at the martensite/matrix interface in a layer region of the hole surface. The minimum depth of the damage layer reduced up to a clearance between punch and die.},
 pages = {17--24},
 title = {変態誘起塑性型高強度複合組織鋼板の温間穴拡げ成形性},
 volume = {28},
 year = {1994}
}