چکیده مقاله
In this paper a methodology is proposed to predict the ductile damage in sheet metal blanking process using a coupled thermo mechanical finite element method A constitutive material model combined with ductile fracture criteria was used The effect of material softening due to heat generated during plastic work in specimen was considered in blanking simulations To verify the validity of the proposed model several blanking simulations are performed and the results compared with those obtained from an experimental study The interaction of fracture initiation and temperature distribution in the sheet metal during the process was studied The effect of velocity and the clearance on the product shape was examined It was seen at high punch speeds the viscous and thermal effects have significant effects on products quality
کلیدواژهها
نویسندگان
A Farshidianfar
Assistant Professor Engineering Department, Ferdowsi University of Mashhad, Mashhad, Iran Mechanical Engineering Department, Iran University of Science & Technology, Iran
S Abbasion
Graduate Student, Iran University of Science & Technology
A Rafsanjani Abbasi
Graduate Student, Iran University of Science & Technology
شیوه ارجاع
Farshidianfar, A and Abbasion, S and Rafsanjani Abbasi, A,1386,Investigation of Thermal Effects in Sheet Metal Blanking Process,02nd Tehran International Congress on Manufacturing Engineering (TICME2007),Tehran
ارائهشده در
مجموعه مقالات دومین کنفرانس بین المللی و هشتمین کنفرانس ملی مهندسی ساخت و تولید10 اسفند 1386 · تهران