TY - JOUR T1 - Experimental and Numerical Investigation of Microstructural Evolutions, Mechanical Properties and Fracture Mode of AISI 1075 Resistance Weld TT - بررسی تجربی و شبیه سازی عددی تحولات ریزساختاری، خواص مکانیکی و مود شکست جوش مقاومتی فولاد AISI 1075 JF - JWSTI JO - JWSTI VL - 1 IS - 1 UR - http://jwsti.iut.ac.ir/article-1-25-en.html Y1 - 2016 SP - 38 EP - 49 KW - Resistance spot welding KW - High carbon steels KW - Numerical simulation KW - Failure mode KW - Mechanical properties. N2 - Weldability of high carbon steels due to the high percentage of carbon and consequently formation of martensitic structure is very poor. In this research, resistance spot welding of eutectoid high carbon steel 1075 is experimentally and numerically investigated from various points of view. The effect of welding current as one of the most effective parameters on failure mode, mechanical properties and nugget size diameter in resistance spot welding is analyzed with experimental tests and numerical simulations. The results show that with increase of welding current, the diameter of nugget size is increased and consequently the failure mode changes from interfacial mode to pull out mode. M3 ER -