Hi Kuppaweld,
You can call me Hawk. I suggest you send me an e-mail(click on my nick) and give me extremely detailed information as to the issues you are having and then I can help you out.
I am wondering what welding procedure specification you are using. If you posted that , then that would be a start. There are many experts on this forum who can help you out, but all we need is information.
I have taught welding and I can tell by examining a coupon what is going on....good or bad in a person's technique. Unless you have a lot of pictures, then there is not much I can do. But, if you can describe what issues are giving your people problems (MUST be specific)then we can all give you some feedback that will help you.
What diameter pipe(English units, Please), schedule(pipe thickness) and rod diameter you are using. Talk to your QA/QC department.
Here in the states things are governed by a Code (API, ASME, FAA, AWS, etc.) and while they differ and are similar......they all use a qualified WPS to get it done.
Be well.
Hawk