Research on Application of Laser Tailor Welded Blanks with Different Thickness for Heavy Truck Side Inner Panels
The dynamics,hardness,metallography and cupping and welding line properties of DC04/0.8-1.5mm laser tailor welded blank with different thickness were tested and analyzed.At the same time,based on the heavy truck cab side wall inner panel,it was developed that a different thickness laser tailor welded blank scheme,and the stamping formability simulation,parts stamping test and bench reliability test were carried out.The results showed that the mechanical proper-ties,molding properties and welding quality of the different thickness laser tailor welded blank met the requirements.The mechanical properties and dimensional accuracy of the different thickness laser tailor welded side wall inner panel met the re-quirements.The number of parts was integrated from 2 pieces to 1 piece,the weight of a single piece was reduced by 1.26 kg/piece,the blank cost was reduced by 2.4 yuan/piece,the tooling investment was reduced by 750,000 yuan,and the pro-duction cost was reduced by 7.9 yuan/piece.The relevant design experience provided reference for the lightweight and process design of subsequent wheel house parts.
different thicknesstailor welded blankscupping testwelded jointside inner panelslightweight design
万方数据
维普
