Welding process is a very important processing for manufacture sprockets, especially for making very large or complicated sprockets, some parts cannot be forged, have to be made by welding process.
Most of the sprockets factory welding sprockets and hub in traditional ways--by labour, but traditional welding processing have lots of disadvantages .
1. Depend on operators' experience and skill;
2. Released chemicals harmful to workers;
3. Faulty Welding easily caused.