TY - JOUR JF - mdrsjrns JO - Modares Mechanical Engineering VL - 19 IS - 9 PY - 2019 Y1 - 2019/9/01 TI - Experimental Study of Weld Line Displacement and Drawing Depth in TWBs Steel Sheets Manufactured by Laser and Friction Stir Welding TT - مطالعه تجربی جابه‌جایی خط جوش و عمق کشش ورق‌های ترکیبی فولادی تولید شده با روش‌های پرتو لیزر و اصطکاکی اغتشاشی N2 - Due to higher demands for tailor welded blanks (TWBs) applications in the transportation industry, it is important to understand their forming characteristics in manufacturing processes, especially the deep drawing, in order to produce products with higher qualities. Due to differences between the base materials strength as well as the existence of the welding zone, the formability of TWBs is frequently less than the base metals. The aim of this study is the comparison of weld line displacement and drawing depth in TWBs designed and produced by laser welding and friction stir welding. Laser welding is more appropriate for TWBs production comparing to the other welding processes because of the creation of limited heat affected zone and suitable keyhole. The parameters of the friction stir welding process are very important due to having a high influence on complicated plastic zone variation, the material flow pattern and temperature distribution in TWBs sheets. In this paper, by design experiments, the effect of blank holder force and linear welding velocity on drawing depth and weld line displacement of TWBs have been investigated. Moreover, the harnesses of the weld zone in both processes have been examined. Results show that by increasing the linear velocity of laser welding, the amount of weld line displacement and drawing depth will be increased. Furthermore, the higher linear velocity of friction stir welding will result in the higher weld line displacement and drawing depth. Likewise, the harnesses of the laser welding zone are higher than those ones for friction stir welding zone. SP - 2183 EP - 2192 AU - Aminzadeh, A. AU - Safari, A. AU - Parvizi, A. AD - Mechanical Engineering Department, Engineering Faculty, University of Tehran, Tehran, Iran KW - Laser Welding KW - Friction Stir Welding KW - Tailor Welded Blanks (TWBs) KW - Weld Line Movement UR - http://mme.modares.ac.ir/article-15-27924-en.html ER -