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Up Topic American Welding Society Services / Certifications / ANOTHER WPS QUESTION
- - By joe pirie (***) Date 09-02-2011 02:01
THE SHOP INSPECTOR HAD ME LOOK OVER A WPS FOR A709HPS STEEL PER AWSD1.1 THIS CAN BE WELDED USING
A SAW  PRE QUALIFIED PROCESS PROVIDED THE RIGHT WIRE IS USED. THE MANUFACTURERS DATA PROVIDED WAS
FOR 5/32 DIA WIRE. THE WIRE THEY WANT TO WELD WITH IS 3/16 DIA THE MANUFACTURER HAS NO DATA ON THEIR WEBSITE
SHOWING THE PARAMETERS FOR 3/16 WIRE. I ASKED THE QC WHERE HE GOT HIS VOLTS AMPS AND TRAVEL SPEED FROM
AND HE SAID HE COPIED THEM FROM A SIMILIAR SAW WPS FOR A DIFFERENT GRADE WIRE. I SPOKE WITH THE MANUFACTURERS
REP ON THE PHONE AND HE EMAILED ME A CHART FOR FIGURING OUT PARAMETERS FOR UNLISTED SAW WIRE. THE NUMBERS ON
THE WPS APPEAR TO BE IN LINE WITH THE CHART. IT DOESN'T SEEM RIGHT TO ME THAT A WPS CAN BE USED WITHOUT A WPQR
IF THE  WELDING PARAMETERS ARE NOT GIVEN ON A DATA SHEET BY THE MANUFACTURER. ANYONE EVER RUN INTO THIS SITUATION
THANKS JOE
Parent - - By jwright650 (*****) Date 09-02-2011 14:41
Look over the essential variables(Table 5.3)....it appears that they allow a change in electrode diameter for SAW of one size...not sure where your other variables fall, but make sure they are within Table 5.3...They do have a WPQR for the original WPS...right?

Is this the same electrode mfg as the smaller size wire for which the original WPS and WPQR were written?...(see Table 5.1)
Parent - - By joe pirie (***) Date 09-02-2011 17:43
same manufacturergave data for 5/32 wire 
the wpqr was from another job different wirebut same dia
Parent - By jwright650 (*****) Date 09-02-2011 17:49
BTW, I was assuming D1.5 due to the ASTM709 reference.
Up Topic American Welding Society Services / Certifications / ANOTHER WPS QUESTION

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