I've been extensively modifying the chassis on Frankenfiat, but there are so many places that it's really difficult to grind to a nice bare metal for welding, and the quality is suffering - especially on low amperage work. On thicker stuff I can blow right through, but even then I don't like the added contaminants in the weld.
Short of a sandblaster, can you gentlemen recommend what you use for these situations?
chemical stripper then acetone before welding. Its time consuming, but will give the best starting point for the weld.
I don't understand the issue. Fiats don't rust....
In hard to reach places I have had good luck with a Dremel and a pack of the cone shaped grinding bits. The point is good for cleaning in the valley of the joint and the flats let you strip any rust or paint fairly quickly.
In reply to icaneat50eggs:
Heh, rust is the least of my concerns!
Papabear wrote: In hard to reach places I have had good luck with a Dremel and a pack of the cone shaped grinding bits. The point is good for cleaning in the valley of the joint and the flats let you strip any rust or paint fairly quickly.
There's a wide variety of cone-shaped attachments. Which one were you thinking of?
Kreb wrote:Papabear wrote: In hard to reach places I have had good luck with a Dremel and a pack of the cone shaped grinding bits. The point is good for cleaning in the valley of the joint and the flats let you strip any rust or paint fairly quickly.There's a wide variety of cone-shaped attachments. Which one were you thinking of?
I use these stones and I have a few of the small 80 grit flap wheels. The stones are pretty good grinders and clean the joints well.
spot sandblaster.
Emory Cloth ripped into strips. Use like dental floss.
Aircraft stripper then a (non-hvlp) spray gun full of lacquer thinner with the fan set to none, so it becomes a solvent pressure washer.
Let it dry for a good long time before striking an arc.
Is this a rust problem or a paint problem?
BrokenYugo wrote: Is this a rust problem or a paint problem?
It's a Fiat, so "yes."
Thanks for the feedback. Fortunately it isn't in one of the rusty areas.
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