Welding in panels - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70chevy · 02-23-2003, 12:06 PM

What seems to be the best method to remove weld after replacements panels have been welding in.

Please be specific if you can on what tools and grinding methods that seems to be the best.

Thanks for any information.

BobM · 02-23-2003, 01:35 PM

4" or 4 1/2" angle grinder. The better your welds, the less grinding you'll have to do. Butt welds are the hardest to do, but are best if you're looking for a professional repair.

*Gee_Emm* · 02-23-2003, 05:07 PM

When welding the panels in, don't butt the two pieces of metal right up against each other, leave a gap of about 1/16"

Eastwood sells little clamps that hold the metal in this position or you can clamp it another way. You won't have much to grind down and the joint will be stronger since you arent grinding away all the welding.

EdB · 02-24-2003, 12:29 AM

Bill,

I am going to be doing a lot of it during the next month.

Drive up and I'll let you get some OJT.

EdB

Mike C · 02-24-2003, 04:43 PM

You can get those butt weld clamps MUCH cheaper from Harbor freight. I like flap discs for grinding down welds much better than griding discs, or even sanding discs.

stllookn · 02-24-2003, 05:25 PM

Mike C, Are you talking about the new discs that have the multiple pieces of paper overlapped onto one another? Those are very intertesting and I was wondering how they work. The guys selling them rave about them...but that is what they are supposed to do. I have never seen one of those guys with either a welder or ginder in their hands so it is hard to judge their expertise...LOL!

stea · 02-24-2003, 06:39 PM

The flapper wheels are great but they dont last very damn long though. I seem to go through them real quick.

Mike C · 02-24-2003, 06:43 PM

Yes. The more money you spend on them, usually the longer they last. They are the best thing for doing sheet metal IMO. If you are building a BBQ, go with the grinder wheel, but for sheet metal, use the flap discs.

minibike · 02-24-2003, 07:31 PM

I have to second the flap discs...yes, they are the overlapped ones that are bonded to a grinding wheel. I usually grind with a normal grinding wheel, then dress it up with the disc.

gashog · 02-24-2003, 10:07 PM

What ever methed you use be careful about the heat, I've warped as much sheet metal grinding as welding.

70chevy · 02-25-2003, 09:33 AM

works great. A friend at work told me to take one home to try out. It seems to work a lot better than a standard wheel. Takes off a smaller amount and no gouges.

02-23-2003, 12:06 PM	#1
70chevy Registered User Join Date: Aug 2001 Location: Cherryville, NC Posts: 147	Welding in panels What seems to be the best method to remove weld after replacements panels have been welding in. Please be specific if you can on what tools and grinding methods that seems to be the best. Thanks for any information. __________________ Ken Smith 99 C5 Torch Red Coupe 85 Chevy Candy Apple 70 Chevy 1/2 in process.Semi-gloss black powdercoated frame & suspension, disc brakes up front, 3" drop spindle(Beltech) 5 lug 3.73 rearend, ZZ4, Sanderson headers, 700R4, Air Ride system, Summitt 16 gal fuel cell, Holly mech. fuel pump,

02-24-2003, 04:43 PM	#5
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,715	You can get those butt weld clamps MUCH cheaper from Harbor freight. I like flap discs for grinding down welds much better than griding discs, or even sanding discs. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

02-24-2003, 05:25 PM	#6
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,465	Mike C, Are you talking about the new discs that have the multiple pieces of paper overlapped onto one another? Those are very intertesting and I was wondering how they work. The guys selling them rave about them...but that is what they are supposed to do. I have never seen one of those guys with either a welder or ginder in their hands so it is hard to judge their expertise...LOL! __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary)

02-24-2003, 06:43 PM	#8
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,715	Yes. The more money you spend on them, usually the longer they last. They are the best thing for doing sheet metal IMO. If you are building a BBQ, go with the grinder wheel, but for sheet metal, use the flap discs. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

02-24-2003, 07:31 PM	#9
minibike Registered User Join Date: Jun 2002 Location: Lafayette, LA Posts: 500	I have to second the flap discs...yes, they are the overlapped ones that are bonded to a grinding wheel. I usually grind with a normal grinding wheel, then dress it up with the disc. __________________ 69 SWB LT1/4L60E www.classicplace.com

02-23-2003, 01:35 PM	#2
BobM Registered User Join Date: Feb 2001 Location: Winnipeg, MB, Canada Posts: 73	4" or 4 1/2" angle grinder. The better your welds, the less grinding you'll have to do. Butt welds are the hardest to do, but are best if you're looking for a professional repair.

02-23-2003, 05:07 PM	#3
Gee_Emm Account Suspended Join Date: Sep 2000 Posts: 4,002	When welding the panels in, don't butt the two pieces of metal right up against each other, leave a gap of about 1/16" Eastwood sells little clamps that hold the metal in this position or you can clamp it another way. You won't have much to grind down and the joint will be stronger since you arent grinding away all the welding.

02-24-2003, 12:29 AM	#4
EdB Registered User Join Date: Jan 2003 Location: Gulfport Ms Posts: 401	Bill, I am going to be doing a lot of it during the next month. Drive up and I'll let you get some OJT. EdB

02-24-2003, 06:39 PM	#7
stea Registered User Join Date: Mar 2000 Location: cedar hills utah USA Posts: 89	The flapper wheels are great but they dont last very damn long though. I seem to go through them real quick.

02-24-2003, 10:07 PM	#10
gashog Active Member Join Date: Oct 2002 Location: Lake co. california Posts: 192	What ever methed you use be careful about the heat, I've warped as much sheet metal grinding as welding. __________________ 69 Custom/10 454 Turbo 400 and 70 Custom/20 350 Turbo 350, 73 cheyanne C/10 also 69 camaro Z/28 and 85 Iroc Z

02-25-2003, 09:33 AM	#11
70chevy Registered User Join Date: Aug 2001 Location: Cherryville, NC Posts: 147	Flapper wheel works great. A friend at work told me to take one home to try out. It seems to work a lot better than a standard wheel. Takes off a smaller amount and no gouges. __________________ Ken Smith 99 C5 Torch Red Coupe 85 Chevy Candy Apple 70 Chevy 1/2 in process.Semi-gloss black powdercoated frame & suspension, disc brakes up front, 3" drop spindle(Beltech) 5 lug 3.73 rearend, ZZ4, Sanderson headers, 700R4, Air Ride system, Summitt 16 gal fuel cell, Holly mech. fuel pump,



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