Design and Analysis of Cold Stamping Process for the Car Transverse Reinforcing Beam

The cold stamping forming processes of the car transverse reinforcing beam were designed and analyzed using the CAD/CAE technology and related software. The numerical model of the car transverse reinforcing beam was established by the UG software, and then the model was imported into the DYNAFORM software to perform the finite element simulation. The obtained forming limit diagram and the thickness distribution diagram were adopted to analyze the feasibility of the forming process. The influences of different forming schemes and parameters (including blank-holder force, lubrication condition, drawing speed, etc) on the forming effect were investigated. In consequence, the reasonable process design and optimum parameters were acquired, which could reduce the tendencies of wrinkling, cracking and thickness reduction. And the optimum process parameters were obtained by orthogonal experiment to ensure the forming quality of the product.