Simulate And Analysis Of The Formation Process For Thin Wall Parts

Thin-walled stamping parts have been widely applied in automotive, aviation, aerospace field. Thin-walled stamping parts is a complicated elastic and plastic mechanical process which includes no-linear attributes of materials, geometric model, and boundary conditions. The quality of stamping die doesn't be caught by designing of experience, especially in more sophisticated products. The numerical simulation technologies have been applied in the formation process for thin-walled parts increased sharply. The cycle of product designing has been shortened efficiently applied in numerical simulation and the defects of formation process has been predicted. As for the purpose, a cup shape forming process has been simulated in this paper. The paper work mainly focus on following sections:(1)The elastic and plastic theory applied in the numerical simulation. The key technologies such as adaptive meshing, models of element, models of contact for numerical simulation process. The simulation results have been analyzed.(2)The orthogonal experiment designing theory applied to design the experiment combination list. Three main factors as the velocity of male model, the pressure of blanket, the friction factor, each with three levels have been used to simulate. The formation process parameters have been optimized by using variance analysis.(3)Base the demand for lighten the thin-walled stamping product. According the difference of mechanic properties between aluminum alloy and steel to discuss the difference in applied on numerical formation. Many parameters have been modified to meet the quality. Proposed to alternate steel with aluminum alloy is feasible.