The reasons that result in friction forces between metal sheet and mould were analyzed, a mechanical model of friction was built based on principle of plastic forming and tribology.

• 对金属板料在塑性变形过程中摩擦力的形成原因进行了分析,运用塑性成形理论和摩擦学原理建立了力学模型,并通过实验得出了当压力改变时摩擦力各分量的变化趋势。