amp range settings on wps

By walkerjw Date 07-17-2017 19:47 Edited 07-17-2017 19:55

we have a wps for a manual gtaw weld, there is no amperage range only a maximum amperage call out. The code is d17.1 and the customer does not specify the weld settings. 5.4.2 says qualification for manual weld settings is not required. My question is why does NADCAP require me to have a range.

By kcd616

Date 07-18-2017 01:22 Edited 07-18-2017 01:25

not my forte' (jump in Al, Brent, Lawrence...etc. etc.)
you need a WPS for the paper trail
as the welder I throw it away :evil:

I use my knowledge to set the range and all other things :cool:

but if something goes wrong :eek:

everyone has to have things in writing
judges and courts like that
just my thoughts
sincerely,
Kent

By welderbrent (*****)

Date 07-18-2017 04:41

Not my arena, D17.1 is for real inspectors and weldors. I have it on the shelf and after the first perusal it has never been back off.

Good luck.

By kcd616

Date 07-18-2017 11:11

Brent,
I have hope for your son's :cool:

you will never be a real welder :razz:

they have a chance, to be real welder's
so live through them :cool:

always our best
to you and your family :cool:

sincerely,
Kent

By Lawrence (*****)

Date 07-18-2017 11:46

Hi Walker.

You may find some helpful commentary in D17 2010 Clause G3.4 that provides some reasoning for it's position on "settings."

I think maybe the take by the D17 committee (I am not speaking for them) is a bit more progressive/realistic and takes into consideration how work might really get done on the shop floor. In a nutshell I believe they view that process control is accomplished by methods and means other than operator machine setting ranges.

Perhaps NADCAP has just not seen their way to embrace the D17 view. Perhaps nobody from NADCAP has thought to consider there is a difference, or why there is a difference.

By walkerjw Date 07-18-2017 12:23

thanks for the input this is a good place to start.