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Mid Wales welder
Welder coding and NDT services
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That would be brilliant. How do I PM you, start a conversation?
Mid Wales welder
Welder coding and NDT services
- Messages
- 672
- Location
- Powys, U.K.
That would be great, any thickness you have really upto maybe 40mm.
Yes the travel speed is more about heat inputs, I will state the weld size in the joint sketch. I don't really know why the heat input has to be on the WPS really as the welder doesn't really need to know that.
Richard.
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The heat input is very important that it's on the wps. Yes the amps/volts/travel are followed to keep heat input to an acceptable level but welders are not the only guys who see wpqr's. Welding inspectors can see them and want that info, ISO certification and traceability needs that info on the wps.
backpurge
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I think I only have ones up to around 12mm but will see what I can dig out, let me have your email address and I'll send you what I have
Mid Wales welder
Welder coding and NDT services
- Messages
- 672
- Location
- Powys, U.K.
That would be brilliant thanks, I'll PM you now.
0114 287 2401 and ask for David Kirkwood
Mid Wales welder
Welder coding and NDT services
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- 672
- Location
- Powys, U.K.
Thanks. I already phoned them, ordered and on its way.
Dimitri De Spiegeleer
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- Belgium
Has the book already arrived? If not, I can make some scans this weekend. Have been really busy this week, but I can make some time today.
Mid Wales welder
Welder coding and NDT services
- Messages
- 672
- Location
- Powys, U.K.
Hiya, sorry I haven't been on here for a little bit. Been absolutely manic with work and home life, not had a minute! The book still hasn't arrived which is really annoying, I rang Lincoln on Monday to see what had happened and they said they would call me back bet never did, so not very happy with them. Anything you could send would be great thanks. Hopefully the book will arrive soon anyway.
Dimitri De Spiegeleer
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I'm in training until the end of next week, so don't have scanner access here.
Here's just some quick pics I made with my cell phone:
Here's just some quick pics I made with my cell phone:
Mid Wales welder
Welder coding and NDT services
- Messages
- 672
- Location
- Powys, U.K.
Thanks for the pics! The book arrived today so I can get stuck in now, they didn't charge me for postage either so that makes up for it.
Would you put those settings straight onto a WPS? Some of them seem a little high to me, although I am transferring them to metric.
Mid Wales welder
Welder coding and NDT services
- Messages
- 672
- Location
- Powys, U.K.
Ah I see that's good to know, I'll just put them into metric and put them straight onto WPS. I have a copy of WPS maker too which is really good and comes with a few pre made WPS's.
When I welded the 6mm PQR I did it on 28volts at about 250amps, but looking at the chart above for 1/4inch it says 25volts at 350 amps, so it just seemed a little off.
Dimitri De Spiegeleer
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- Belgium
Do you need WPS'ses or pWPS'ses?
I use those tables as a rough guideline for either price calcs or to get started, but if you need those pWPS'ses to get qualified, you have to use your own settings either way. Thses tables might just help you getting started.
Mid Wales welder
Welder coding and NDT services
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We've done our PQR's so they are qualified. This is for the WPS's, I write these and then do 5sample pieces from them that add up to at least 900mm, those pieces are then MPI tested to make sure they are ok. Then I get my RWC cert and we are ready to go for our CE audit.
Dimitri De Spiegeleer
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Depending on hardness and/or charpy requirements, you have to stay within 25% of the heat input as recorded on your WPQR, so you can't really choose your settings (voltage/current/travel speed) on the WPS, but you have to stay within those limits.
Richard.
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^^^^ this. You'll need to qualify your wps to ensure your conditions meet the requirements. Mpi alone will only show surface defects. For a lot of applications the wps needs to be qualified for notch toughness of the joint at certain temps and this value is very much dependent on heat input. Perhaps some macros should be taken also so that you can see below the surface to ensure the conditions you select give proper fusion.
After some advice please.
At work we make steel framed buildings,maximum 4 of us welding thicknesses of 6mm to 25mm with fillet welds from 5mm to 15mm.
Should we have a different wps for every size weld to every size steel?
Should any weld over 10mm be a multi run?
How frequently should the welding Co-ordinator be checking our welds for size,defects etc? He says in theory he should check 100% of the welds.
Should surfaces to be welded linished first?
Our newly appointed Co-ordinator is a bit inexperienced and it all seems a lot of hassle and waste of time and I just wanted to find out what's really necessary.
Thanks for any help
At work we make steel framed buildings,maximum 4 of us welding thicknesses of 6mm to 25mm with fillet welds from 5mm to 15mm.
Should we have a different wps for every size weld to every size steel?
Should any weld over 10mm be a multi run?
How frequently should the welding Co-ordinator be checking our welds for size,defects etc? He says in theory he should check 100% of the welds.
Should surfaces to be welded linished first?
Our newly appointed Co-ordinator is a bit inexperienced and it all seems a lot of hassle and waste of time and I just wanted to find out what's really necessary.
Thanks for any help
Dimitri De Spiegeleer
Member
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- Belgium
1 WPS for a fillet weld suffices, of course it must be set-up so that it includes both singe layer and multi layer welds.
You will need different WPQR's though for this one WPS. This is where an experienced welding coordinator can save you lots of money.
You (or the designer) chooses what needs to be single and multi layer. Thickness does play an important role in this decison.
100% visual testing is a requirement of the EN1090.
Any further questions should perhaps better be asked in the EN1090 thread
http://www.mig-welding.co.uk/forum/threads/ce-marking-bs-en-1090.39301/
You will need different WPQR's though for this one WPS. This is where an experienced welding coordinator can save you lots of money.
You (or the designer) chooses what needs to be single and multi layer. Thickness does play an important role in this decison.
100% visual testing is a requirement of the EN1090.
Any further questions should perhaps better be asked in the EN1090 thread
http://www.mig-welding.co.uk/forum/threads/ce-marking-bs-en-1090.39301/
