Regression Modeling and Process Analysis of Plug and Spot Welds Used in Automotive Body Panel Assembly

  • سال انتشار: 1399
  • محل انتشار: ماهنامه بین المللی مهندسی، دوره: 33، شماره: 11
  • کد COI اختصاصی: JR_IJE-33-11_029
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 264
دانلود فایل این مقاله

نویسندگان

T. Saeheaw

Department of Teacher Training in Mechanical Engineering, Faculty of Technical Education, King Mongkut&#۰۳۹;s University of Technology North Bangkok, Bangkok, Thailand

چکیده

Resistance spot welding is the primary welding process used in automotive body panel assembly. However, plug welding is widely used in automotive body repair due to its technical simplicity and cost benefits. In this paper, spot welding and plug welding using Tungsten Inert Gas (TIG) welding of an automotive body panel are compared. TIG welding is selected for plug welding because it offers the greatest flexibility to weld the widest range of materials, thicknesses, and types. The base material used in this study is JIS G۳۱۴۱ SPCC. Full factorial experimental design coupled with statistical and graphical analysis of the results using analysis of variance was applied to determine the significance of process parameters. Parameter interactions were investigated using regression analysis, model adequacy checks, and determination of optimum conditions. A genetic algorithm is used to predict the optimum combination of the process parameters to realize the highest strength level. For tensile-shear strength, the experimental results demonstrate that plug welding has a higher maximum load than spot welding. The optimum plug welding joints were obtained at a hole diameter of ۹ mm and a welding current of ۱۳۶ kA, with a maximum load of ۸.۲ kN. The maximum load of the spot weld joint, ۷.۴ kN, was found at a welding current of ۷۰ kA, an electrode force of ۰.۲۵ MPa, and ۱۰ cycles of welding time.

کلیدواژه ها

Automotive body panel, Genetic Algorithm, Plug weld, Spot weld, tensile strength

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.