WPS is in the correct apporove means can be used. What mengapporve akan responsible if later there is an accident due to an error in the WPS? Of course not. and I think this also does not need to be responsibility. Because, Until now I had not found this like case. Logikanya the aprroved origin does not approve it. He also must take this knowledge WPS, WPS how to make, what type of incoming material, what match use electrode, the electrode should be used using the ampere and voltage, in the preheat temp etc.. Then, after the welding must be tested what NDT, mechanical tests that required any type of test referring to the code / standard which.

If he is so mean WPS welding process that is used with materials that will be tested in all things, good design, power, metallurgy, etc.. If WPS is used in the accordance with the parameters that are listed there and then we can agree the goods will not fail. There is a failure may be caused by other factors such as design stucture, thickness of material design, but not of its WPS.

To approve the departement, oil and gas, other 3rd party does not make him Weld on the other test objects. He was invited here (notification) by the contractor or company that will make this WPS. Once he invited kelokasi contractor came to check as I submit in answer no 1. this name stage there is no record WPS but PQR. So there is no WPS here. Andry pack may ask Ask Weld his life so what parameters?

Okay … to run the test we use this coupon PWPS (Prelimenary WPS). That its parameters are taken from past experience 2 manufacturer recommendations and in the format that is similar to WPS. So join welding PWPS this. During the welding process notes actual value of the welding parameter2 later called PQR.

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