英语翻译
indrawing,thelimitofdeformationisreachedwhentheloderequiredtodeformtheflangbecomesgreaterthantheload-carringcapacityofthecupwall.thefailuresitewillbeintheunworkareanearthebottomofthecupwall.thehold-downpressureontopoftheblankmustbesufficienttokeepthematerialfromwrinklingasitgoesintothedie.