Is there any standard or reference for preparing WPS for PROJECTION WELDING? also i need to know whether there is any procedure to qualify projection welding machine operator. Please share your knowledge regarding this.

You didn't mention whether you were working with a specific code or simply trying to ensure you are producing sound welds.

Likewise, you didn't mention whether these are threaded fastener or something else. Details are usually helpful in coming up with a reasonable solution to a problem.

Al