green weld knock down wheel?

While channel surfing the other night I happened upon a soap opera - oops - Hot Rod show on the Destination channel and they were using a 4" or so green disk 3/16 -1/4 thick to cut down the MIG welds before grinding. What are these and where can I get some? Are they that much more effective than other discs? Trying to cut down on heat input and time on panel welds.

 

I pick up mine at tractor supply. HRP

 

You can get them at any automotive paint supply. Anywhere that has a decent abrasive selection. They come in 3" x 1/4" for use on a cut off tool. Most cost effective, and selective way I've found for dressing small welds.

 

Hotrodprimer, do you happen to have a part # for these at Tractor supply?
Tinbender, I'll try my local NAPA paint dealer, but Taos isn't exactly the center of the fabrication universe.
Thanks to both.

 

This is what I use (hope this helps)-

http://solutions.3m.com/wps/portal/...0000_nid=5CTVQQCTQ8gs060CVBK1Q8glSRXVZVRRK3bl

 

I don't,,I'm at work but it should be too hard to find out,,they are made by 3M. HRP

 

I just weld so everything melts perfectly flat...(ha, yeah right)

 

You can't go wrong with 3M

 

3M makes good abrasives. I use Norton mostly. They make 3X3/16 #89034.

 

Hey,

If your objective is to '' cut down on heat input and time on panel welds '' now may be a good time to teach yourself to gas weld! " Squirtgun welds do have their place in sheetmetal work, but can leave a panel with pin holes in it, and all the necessary grinding to level the weld bead can lead to hard spots in the panel that later lead to cracks. A good gas welded bead won't require much, if any post welding grinding, and leave the panel in a nice loose state, tension wise. Too, you side step all that damn abrasive dust all over the job/shop, and all that damn noise from grinding

 

Pimpin, I've got quite a few years experience gas welding sheet metal, chromoly (aircraft fuselages), etc. but find it takes quite a bit of time that some customers don't want to pay for. TIG'n (and hammering) my own stuff is fine, but I have some folks that want some patch panels installed on their OT stuff (I've got a 70 Chevy C10 in the shop right now for cab corners and rockers) and bring me stuff like LMC panels that sorta fit.....yes, you're right gas is a viable method (if Bill Hines was still around he'd say HELL YES) but I'm trying to find a solution for the situation where the MIG is the best compromise. Thanks.

 

I use them all the time. I can get you the 3M part # tomarrow.

 

Do you know something I don't? Last I heard Bill is still welding and leading busy as a bee....




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