The claw pole is by cold forging (cold extrusion) technology, not by die-casting, which improves the comprehensive peformances of the alternators and extend theirs life time.The claw pole is used for alternator rotor. It has more advantages on higher density, and higher power performance than hot forging products. Our claw poles which supply for Delphi (Erae) which sizes are NP10, RQ10, and B17. We can produce and supply it according to your drawings.
Cold extrusion features a massive forming process to produce both hollow and solid blanks in a multistage production process (multistage pressing).Presses with a very high closing force carry out cold forming of the material under a high pressure until the desired shape is achieved.
The material is extruded there by application of a high pressure. An upper die presses the blank through a forming and cross-section-reduced die orifice - the mold.
Longkou Dayuan, is able to make products with complicated geometry and a high forming degree.
Advantages of cold extrusion process:
· high dimensional stability
· excellent surface finish
· continuous fiber flow line thanks to forming
· efficient process for mass production
