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Old 06-30-2011, 08:37 AM
David Gardiner David Gardiner is offline
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Gary, a large part of the skill involved in making panels is breaking down the panel so that you can form the sections with the least amount of work and putting your joints in an area where the distortion will be controlled. I will sometimes cut out perfectly sound steel when carrying out a repair in order to put the welded joint in an area that will resist distortion and dress out quickly and easily.

If you look at the weld on the panel in my photo above you can see that you would be hard pushed to get a more even HAZ with tig. The haz3e is not much wider than you get with tig either.

Distortion is caused not so much by the amount of heat that is put in a panel as by the stresses caused by uneven heat. Tig welding will distort if it is done in the wrong way. Tig gives a good weld on steel but for me it is too cumbersome to use on car panels. Not so bad if you are working on a bench but harder to use on an actual vehicle.

David
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  #12  
Old 06-30-2011, 08:47 AM
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Richard K Richard K is offline
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Thanks for your post Marty, well said. Many of us know at least a bit about each other from having been at meets and so forth. I often wonder how the new member would begin to sort out who's who and who is experienced and what info is good and what might be not as dependable.

I sometimes push an issue or pose some questions simply to provoke others to think about the subject and join in. Sometimes it gets people involved, other times some may get upset that I challenge the thought process.

You mentioned teaching dance, I've never been very good at dance, however I really enjoy watching people dance. Some are on the floor to show their mastery of dance. A couple who have mastered classic ballroom dance skills are a thrill to watch. I could never attain that movement and grace.

On the same dance floor might be a couple who are just enjoying the music and able to express that enjoyment in dance. Their skills are not of any consequence. They are having fun. I am envious of them. They are going places I have never been and may never be.

Here is a link you might enjoy, Marty
http://ponderingpool.com/p_pool/newcards/card27.html

Metalshaping should be fun too. There is always room on the dance floor.
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Last edited by Richard K; 06-30-2011 at 08:50 AM.
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Old 06-30-2011, 08:56 AM
David Gardiner David Gardiner is offline
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Richard I did use your comments so I could play devils advocate sorry about that. I knew what you were getting at. I just wanted to show that its possible to do the weld in one and get great results.

Thanks for the nice comments about my work.

When I first started to do bodywork I learned from American hotrod magazines and I used to hammer weld everything. I got good results. At college I learned the traditional English coachbuilding method that I showed above and it was so much easier and faster!. I still hammer weld some parts particularly if the part has to be chrome plated.

The beauty of the welding method I use is that it is really easy to learn. It is a one handed operation and you dont have the difficulty of trying to coordinate your two hands at the same time. In fact you can use one hand to steady the other. Of all the welding methods it is the easiest method to learn.



David.
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Last edited by David Gardiner; 06-30-2011 at 09:03 AM.
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