Deep drawn parts offer the ability to pre-plate the internal working faces with gold, while also work-polishing and hardening the wall to optimize product lifetime.
深冲部件提供了对内部工作面镀金的能力，还可以在工作时抛光和硬化壳壁以延长产品寿命。
2
The evolution of blank hold pressure is determined by the effect of work hardening and softening during deep drawing process.