کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10674600 | 1010322 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanism of Springback-Free Bending of High-Strength Steel Sheets under Warm Forming Conditions
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Tensile loading-unloading tests of high-strength steel sheets in an elevated temperature range are conducted using a 100Â kN servo-controlled hydraulic dynamic fatigue testing machine, aiming at clarifying the mechanism of the springback-free phenomenon occurring in warm sheet forming. From stress-strain curves obtained by the tests, it is found that the abrupt decrease in the springback of formed steel sheets at approximately 750Â K in isothermal v-bending tests is mainly caused by high-temperature transient creep deformation. Also, from the results obtained by the isothermal v-bending test, bending-unbending deformation observed at temperatures higher than 750Â K, as a result of high-temperature creep, was found to have a secondary effect in the springback-free phenomenon.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CIRP Annals - Volume 56, Issue 1, 2007, Pages 265-268
Journal: CIRP Annals - Volume 56, Issue 1, 2007, Pages 265-268
نویسندگان
J. Yanagimoto, K. Oyamada,