71airgrabberRR
Well-Known Member
This afternoon I went out in the shop and tinkered with the new spot welder. First off I had to adjust the welding tongs and install the proper male plug for the outlet.
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Once that was done I practiced on some scrap 18 gauge sheet I had laying around.
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This one is TOO hot......................
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This one is just right.....................
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It's all in the timing and tip pressure. Once I got it sorted out I decided to try some "destruction" testing to see just how strong the welds were.
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The two outside edge spot welds snapped real quick. I thought they would since these were my first attempts.
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This last photo shows the end results. I added a red pointer to show the best overall weld. It had a slight "dimple" to it and had good penetration. The others that stayed intact were just too hot and ended up melting away some metal, almost to the point of blowing out a hole in the metal.
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I can see now why the factory used spot welding. It's very quick...................... Something you need for mass production.
I will have to practice with this for a while until I feel good enough to start welding on the cars with it.
It was a good investment.
Take care, and hope you all had a great weekend.
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Once that was done I practiced on some scrap 18 gauge sheet I had laying around.
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
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This one is TOO hot......................
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
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This one is just right.....................
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
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It's all in the timing and tip pressure. Once I got it sorted out I decided to try some "destruction" testing to see just how strong the welds were.
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
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The two outside edge spot welds snapped real quick. I thought they would since these were my first attempts.
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
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This last photo shows the end results. I added a red pointer to show the best overall weld. It had a slight "dimple" to it and had good penetration. The others that stayed intact were just too hot and ended up melting away some metal, almost to the point of blowing out a hole in the metal.
- - - Updated - - -
I can see now why the factory used spot welding. It's very quick...................... Something you need for mass production.
I will have to practice with this for a while until I feel good enough to start welding on the cars with it.
It was a good investment.
Take care, and hope you all had a great weekend.