>2 said:
>
> "we learned that good spotwelds are not sound
>unless they look like some of the metal has melted. In other words, a
>real pretty weld is really pretty weak. The solution is to increase the
>spotwelder current (and/or increase the weld-time)until the weld looks
>nasty."
>
>Good welds look good.
The spotwelds on Eimac/Salt Lake tubes looked good. The welds eventually
failed. The welds on Chinese 3-500s do not look as good but they do not
fail.
>If the weld looks nasty, it is probably not a good
>weld. It is a basic premise of welding that the material must be melted to
>be effective, unlike soldering. Soldering will not melt the materials,
>welding must. Good welds are a work of art.
>
>Colin K7FM
>
>
- R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
www.vcnet.com/measures.
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