The invention provides a reliable rotor commutator welding method, including the steps: the coil end heads of the uppercoil and the lower coil are welded through the argon-arc welding;
It also gets the left shoulder turning so the upper body starts to coil against a stable lower body.
这样还可以更有利左侧肩膀的转动，身体上部开始紧靠着稳定的身体下盘扭转。
3
It should be of such length that, when the lower end is resting on the table or other surface supporting the coil base, the top end will be flush with the upper end of the spool.