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Spot weld removal help?

  • Thread starter Thread starter Jester67
  • Start date Start date May 21, 2005

Jester67

Member
Sep 21, 2004
908
1
18
TN
May 21, 2005
#1
  • May 21, 2005
  • #1
Who makes the best spot weld cutter? I was told that a lot of the spot-weld cutter dull very fast and that a drill bit is a better way to go. I was just hoping that someone had come across a tool or method that made removing spot-welds as easy as possible.
 

geostang351

Member
Mar 30, 2005
946
0
17
Danb., CT
May 21, 2005
#2
  • May 21, 2005
  • #2
I normally drill a small spot for the spot weld centering pin to stay steady. That helps; then use oil to lubricate the blades (LOTS). The idea is to be consistant and take your time. Rush it - dull it.
 

zookeeper

Founding Member
Aug 25, 2001
3,415
63
109
Rogue River, Oregon
May 22, 2005
#3
  • May 22, 2005
  • #3
I use a regular drill to remove spot welds. Start with something like an 1/8 or 3/16 drill bit, then move up to a 1/4 or 5/16. This will remove all of the spot weld so you don't have to beat the poop out of it to separate the panels. Then when you weld the new panel in, simply plug-weld it from the backside and it looks like a factory spot weld from the front. Worked for me...
 

67coupe351w

New Member
Jan 31, 2004
424
0
0
Portland, OR
May 22, 2005
#4
  • May 22, 2005
  • #4
I've always just drilled them for removal and plug welded for assembly as well.

The biggest problem I have is getting the bit centered in the spot weld so that the 2 peices of metal will come apart nicely...This probably has somethign to do with not using a center punch I'd imagine.
 

car_kent

Member
Jul 14, 2002
62
0
7
Richmond, VA
May 22, 2005
#5
  • May 22, 2005
  • #5
I found the Astor Pneumatic spot weld drill to be the most effective tool for removing spot welds. If you are just starting on a rusty mustang, it may be worth the money.

Kent
 
6

65Mustang2+2

New Member
Jun 5, 2004
118
0
0
Connecticut
May 22, 2005
#6
  • May 22, 2005
  • #6
Try Eastwood they have a nice spot welder dit that works well! Center punch the spot weld first and use lots of WD40 when doing it! Keeps the bit from wearing down! Use a grinder first to see the welds better, then center puch and then drill away!
 

reenmachine

20+ Year Stangneter
Jun 27, 2004
1,258
2
38
Montrose, CA
May 22, 2005
#7
  • May 22, 2005
  • #7
Lately I've been using a 3/8" "bullet bit" that I got for free with something I bought and it works great. It's a 3/8" bit with a 1/8" pilot bit built in that sticks out from the tip about 1/8". That way, you get your small centering pilot hole and your cutting hole all in one operation.
 
1

10secgoal

Active Member
Dec 1, 2003
2,801
3
49
San Diego
May 22, 2005
#8
  • May 22, 2005
  • #8
I used the spot weld remover with a spring loaded needle in the center to keep in centered. Never had a problem with dulling it. But I did have problem bearking teeth. So I started using a cordless drill with the adjustments and set it farely low so when the tooth would grab the drill would release the pressure. No more broken teeth.
 

65 A Code

Member
Apr 6, 2004
136
1
17
May 22, 2005
#9
  • May 22, 2005
  • #9
I like the bit from Eastwood. Plus you can replace the blade part on it when it gets dull.
 
B

BB1966

New Member
Dec 1, 2004
297
1
0
Beaufort , NC USA!!!!
May 22, 2005
#10
  • May 22, 2005
  • #10
Two words....PLASMA CUTTER!!!!!!!
 

txwoody

Member
Jun 2, 2004
99
0
6
4 hours to anywhere, TX
May 23, 2005
#11
  • May 23, 2005
  • #11
http://www.blairequipment.com/Spotweld_Cutters/Spotweld_Cutters.html

The Blair # 13224 is a very good cutter.
 

Jester67

Member
Sep 21, 2004
908
1
18
TN
May 24, 2005
#12
  • May 24, 2005
  • #12
Thanks for the help guys.

txwoody said:
http://www.blairequipment.com/Spotweld_Cutters/Spotweld_Cutters.html

The Blair # 13224 is a very good cutter.
Click to expand...
About how many spot welds can you get per cutter?
 

txwoody

Member
Jun 2, 2004
99
0
6
4 hours to anywhere, TX
May 24, 2005
#13
  • May 24, 2005
  • #13
You can get alot if you dont break the cutter. You have to make sure that you cut it flat and not at an angle. Once you get it figured out its probley the fastest way to cut spot welds. I would get an extra pack of bits. They come 3 to a pack.
 

geostang351

Member
Mar 30, 2005
946
0
17
Danb., CT
May 24, 2005
#14
  • May 24, 2005
  • #14
Its all about technique, speed and lubrication! (I guess that goes for alot of things!)

 

txwoody

Member
Jun 2, 2004
99
0
6
4 hours to anywhere, TX
May 24, 2005
#15
  • May 24, 2005
  • #15
geostang351 said:
Its all about technique, speed and lubrication! (I guess that goes for alot of things!)

Click to expand...


Amen to that.
 

69 Rustang

Member
Jun 9, 2004
307
0
16
Orange County California
May 24, 2005
#16
  • May 24, 2005
  • #16
I have used Blair cutters (available at auto body/paint supply stores). You will spend about $30 for the main piece which has one double sided head and the centering pin and second package of 3 double sided replacement heads. I found you never know how long they will last--I have put on a new head and caught an edge on the very next weld and poof--torn off 2 or 3 of the teeth. Then it is time to flip it over and use the other side until it is dull or broken. Maybe it is my impatience, but I tend to break more cutter teeth than dulling them. My opinion reasonably priced and can be done by the do it yourselfer.

Some people prefer to just use regular drill bits and step them out until the weld is removed. I don't like that because it leaves a divot. Drill bits will be more durable than the blair cutters, so it is a matter of preference/opinion. Definitely affordable for the do it yourselfer.

I have a plasma cutter and it makes real quick work of it--just be sure you want to cut ALL the way through because anything in the way is going to be cut/melted. It works awesome in tight spots where I can't use the drill and spotweld cutter. The plasma torch also allows me to cut away big pieces of panels so I can gain better access and "trim" the last little bit how I want it. Here you are going to spend $1000 to get a plasma torch and you must have an air compressor to operate it (too expensive unless you are going to do LOTS of cutting).

Lastly, a tool on my wish list--the special spot weld drills with the carbide bits. I would love to have one, just blew all my money on the other tools and toys. But someday when the wife isn't looking!!!

Good luck,
 

Jester67

Member
Sep 21, 2004
908
1
18
TN
May 27, 2005
#17
  • May 27, 2005
  • #17
Thanks again guys for the help I will try a couple of these and hopefully will find something that works for me. At least now I have some options.
 
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