Because of its rapid computing speed and simple modeling requirement , this method can be used to evaluate the formability of the parts and effects of some process parameters on the forming at the early design stage 由于计算速度快、建立分析模型简单，此方法可用于设计早期估计零件的可成形性，以及部分工艺参数对成形的影响。
With high strength , low density , good castability and machineability , al - si series cast alloy has become one of the most important structural materials in manufacturing industry , and zl101a is the most widely used 铸造铝硅合金具有容重小、比强度高、铸造成形性和加工性能好等优点，已成为制造行业中最受重视的结构材料之一，该类合金中的zl101a应用最为广泛。
Examining the simulation results , the deformation of sheet metal would affect the magnitude of electromagnetic force , and the corners of sheet metal had worse formability because of the insufficient electromagnetic force and flash 由模拟结果可知，成形过程工件的变形会明显的影响电磁力的大小；同时，无预成形板材角落之成形性受到电磁力不足与馀料太多的影响，成形较其他部位差。
Combining with characters of powder , the mechanic of powder plastic deformation , the strengthen cause of powder extrusion products , the effect of surface oxide and powder strengthen materials property and formability of powder extrusion products were introduced and discussed in this dissertation 论文结合粉末的特性，对粉末塑性成形的机理、粉末挤压制品的强化机制、粉末表面氧化物及颗粒强化材料对粉末挤压制品的性能和成形性的影响进行了述评。
A detailed introduction was made to the properties of the wet coated sand suitable for multi - station shell mould shooting machine ; the development of a sort of high strength coated sand with low resin content : the shaping index and wetness adjusting process : analysis and prevention of peel back defect of shells made with overturning hopper process ; test method of peel back resistance of coated sand : pinhole defect analysis of high ni ductile iron shell mould castings and application of anti - pinhole coated sand 详细介绍适用于吹砂式多工位壳型机的湿态覆膜砂性能；高强度低树脂量覆膜砂的研制；湿态壳型覆膜砂的成形性指数与调湿工艺；翻斗法制壳时的脱壳问题分析和解决办法；覆膜砂脱壳性检测方法；高镍球铁件壳型铸造表面针孔原因分析与抗针孔覆膜砂的应用。
This paper takes advantage of numeric simulation technology to investigate the weld - line movement and formability of twb with the same property and different thickness , analyzes the weld - line movement in three different drawing ways with the same drawing depth , and shows the normal rule of weld - line movement in different drawing ways , and the relationship between the weld - line movement and formability of twb of different thickness 摘要本文利用数值模拟技术对相同材质差厚拼焊板的冲压成形性和焊缝移动进行研究，分析了相同拉延深度、不同拉延方式下焊缝移动情况，揭示了不同拉延方式下焊缝移动的一般规律和焊缝移动量与差厚拼焊板成形性之间的关系。
