包邮模具专业英语

前言
unit one basic knowledge of die or mold
　lesson 1 what is die or mold?
　　reading materials: (1) the definition of a die
　　(2) blanking die
　lesson 2 die and mold steels
　　reading materials: engineering materials'categories and properties
　lesson 3 heat treatment of steel
　　reading materials: common methods in heat treatment
unit two sheet forming processes and die design
　lesson 4 sheet forming technique
　　reading materials: five factors in blanking
　lesson 5 piercing die and blanking die
　　reading materials: methods of reducing cutting forces
　lesson 6 compound die