Effect of material mechanics property parameters on drawing formability of STO7Zn automobile steel sheet;
材料力学性能参数对ST07Zn车用钢板拉深成形特性的影响
Now the problem was soloved by using circular arc lathe tool model and specially designated technology.
使用圆弧车刀样板及特定的操作技术，可加工出质量可靠、成本较低的模具，利于推广应用。