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  #31 (permalink)  
Old 01-28-2012, 09:21 PM
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I have seen a truck frame that was butt welded break. See this thread:
What's the best way to weld box plates onto a frame ??
It's probably safe enough for grass and tree saplings, but I'd hate to hit a concrete curb or big rock with them. I have welded new cutting edges on shredder blades, but made the welds in line with the blades, not butt welds. I just hate to see anyone get hurt.
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  #32 (permalink)  
Old 01-28-2012, 09:27 PM
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Quote:
Originally Posted by graydog
I have seen a truck frame that was butt welded break. See this thread:
What's the best way to weld box plates onto a frame ??
It's probably safe enough for grass and tree saplings, but I'd hate to hit a concrete curb or big rock with them. I have welded new cutting edges on shredder blades, but made the welds in line with the blades, not butt welds. I just hate to see anyone get hurt.
the forces against and the way stress is applied to a truck frame is different than those blades
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  #33 (permalink)  
Old 01-29-2012, 06:47 AM
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The combo cleared woods which was mulching down small trees. I can not imagine a more aggressive environment.

It's not the what but how.
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Old 01-30-2012, 02:51 PM
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From AWS (American Welding Society) :

Shredders are driven at a relatively high RPM and could send a broken end a long distance and cause injury or death.

"Have you ever seen someone throw an axe or a knife into a big block of wood?* *Imagine that was a bystander."

Their opinion, not mine.
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Old 01-30-2012, 02:52 PM
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Quote:
Originally Posted by graydog
From AWS (American Welding Society) :



Their opinion, not mine.
If you posted it then it's your opinion too. Everyone has one.
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Old 02-28-2012, 03:57 PM
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had to drag this back out

I just changed the way I handle my mig welding torch when doing spot welds for bodywork


I know you should cut the tip of the wire off, every time you make a spot weld

that is a very time consuming and awkward process (I feel like I need 3 hands)

today I just stopped putting the welpers down, and now use them to hold the end of the mig torch, when making the spot weld


when welding

when cutting

back to welding


it makes me feel like a welding robot
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  #37 (permalink)  
Old 02-28-2012, 07:48 PM
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Also, on factory frames, you are never supposed to weld vertically, horizontal beads only. A vertical weld on there is begging for breakage.
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  #38 (permalink)  
Old 02-28-2012, 08:36 PM
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Quote:
Originally Posted by sbchevfreak
Also, on factory frames, you are never supposed to weld vertically, horizontal beads only. A vertical weld on there is begging for breakage.


Brian
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Old 02-28-2012, 08:37 PM
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Quote:
Originally Posted by matts37chev
I just changed the way I handle my mig welding torch when doing spot welds for bodywork


I know you should cut the tip of the wire off, every time you make a spot weld

that is a very time consuming and awkward process (I feel like I need 3 hands)

today I just stopped putting the welpers down, and now use them to hold the end of the mig torch, when making the spot weld



it makes me feel like a welding robot
I couldn't pull that off but looks like a great way for you. I just know I couldn't hold it steady or something.

Brian
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  #40 (permalink)  
Old 07-07-2012, 12:36 PM
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Cutting ball off .........

Hi,IF i understand this correctly,you are taking the ball off of the wire.by touching it to the clamp !! NOT cutting the tip off with welpers??Another thing,i have been welding for over 35 years,when i am MIG welding i have NEVER used a mask,i am NOT looking at the wire tip,im looking at the brass metal wire shroud.IF im ARC welding,yes,im wearing a mask,my eyes are STILL 20/20.,AND most of my welds need very little grinding.
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  #41 (permalink)  
Old 07-07-2012, 01:04 PM
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I don't know about anyone else, but if I don't have my welding jacket buttoned all the way up and I weld for a while I end up with a nice "sun" burn in a "V" shape between my mask and jacket..... I can't imagine not wearing a mask....... I'd be crispy for sure..........

Then again If I'm Mig welding at work I usually am welding at 26-30volts with the wire speed cranked up, maybe welding sheet metal would be better, but I'd say always wear a mask, the risk of burning your eyes or getting a nasty "sun" burn aren't worth it.......




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  #42 (permalink)  
Old 07-07-2012, 03:10 PM
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Quote:
Originally Posted by boatbob2 View Post
Hi,IF i understand this correctly,you are taking the ball off of the wire.by touching it to the clamp !! NOT cutting the tip off with welpers??Another thing,i have been welding for over 35 years,when i am MIG welding i have NEVER used a mask,i am NOT looking at the wire tip,im looking at the brass metal wire shroud.IF im ARC welding,yes,im wearing a mask,my eyes are STILL 20/20.,AND most of my welds need very little grinding.
That might work for you but I sure wouldnt give that advice to anyone else.
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  #43 (permalink)  
Old 07-07-2012, 03:15 PM
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Quote:
Originally Posted by graydog View Post
I have seen a truck frame that was butt welded break. See this thread:
What's the best way to weld box plates onto a frame ??
It's probably safe enough for grass and tree saplings, but I'd hate to hit a concrete curb or big rock with them. I have welded new cutting edges on shredder blades, but made the welds in line with the blades, not butt welds. I just hate to see anyone get hurt.
not sure if this question was ever answered. I'd say sleeve it with an insert after measering up/down/left/ right to insure it's in the right place. Nowadays I-car recommends to cut 1/4" slits on each corner of the frame end and taking duck bill pliers to bevel each end so it slips perfectly into the new frame horn, then welding it shut. They most likely only recommend this over a sleeve approach due to newer cars being unibody cars designed to colapse in certain ways to avoid whip lash. If it's an older car there's no need cause it's not designed to lure impact forces in certain directions or dissipating energy. If you get rear ended in an old school break your neck with pride.
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  #44 (permalink)  
Old 07-07-2012, 06:28 PM
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Brian , Ebook time ?

Brian has written excellent articles on welding, Auto body repair, that newby's probably haven't seen, I printed them off a few years ago and filed them in my welding notebook , told junior to read and improve his welding,
Brian can you have links when you post. also there is a lot of great informatioon others have done, I am thinking Dan's interor-upholstery posts.
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  #45 (permalink)  
Old 07-07-2012, 09:17 PM
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I have never owned a pair of welpers. I have always just used side cutters. The welpers looks like a neat tool. Is there a particularly good brand or are they all similar?

John L
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