Metal Stamping of Electric Motor Stator Lamination

In terms of speed, the speed of synchronous motor is synchronous with the electromagnetic speed, and the speed of asynchronous motor is lower than the electromagnetic speed. In the case of no out-of-step problem, no matter the load size, the speed of synchronous motor will not change, the speed of asynchronous motor always changes with the change of load.

At present, Yongrong Power Co., LTD. 's stamping technology supports Single Notching, Compound Punching and Progressive Punching.

Compound stamping

Composite stamping can be used to produce stator laminations and rotor laminations. In terms of stamping, some complex rotor laminations of permanent magnet motor may need stamping twice, while compound stamping can rush out a complete Motor Lamination only once. By this token, the production rate of compound stamping is very fast, also, it has good flatness and concentricity. Although the cost of the mold is not cheap, when costs allocated to each motor lamination, the compound stamping scheme is both economical and efficient, so it especially suitable for medium and large volume production. 

Compound stamping motor lamination

Because compound punching is suitable for medium motor lamination, the whole mold is mixed between the piston and the press base, the mold size is large. The discs are stamped into laminations in a fraction of a second, it's running speed is much faster than the speed of rotary grooving, the entire feeding and output process can be operated by automated systems or workers. 

Compound presses are well suited for automated feeding and output systems, it can maximize the capacity of the press and greatly improve productivity, so more than half of our compound presses are equipped with automated systems.

Application and Fees

The production capacity of compound punch depends on the performance of the punch and the size of the base(used for mounting molds). Compared with rotary grooving, the cost of composite mold is much higher.