'66 Sunbeam Minx Project - F20C/6sp/4-link/Discs... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Frizzle Fry · 12-04-2009, 04:23 PM

I don't seem to get shrinkage from grinding. Maybe I use less pressure. I have been taking the welds down to near-surface level with a grinding wheel, then hitting them with the flap disc, then 80 grit DA.

The key to avoiding warpage starts with the weld itself. On thin stuff I tac-tac-tac, jumping around to avoid too much heat in one area. It ends up looking like the steering column pass-through pic in my previous post before grinding. Not the prettiest to look at but it all gets ground smooth anyway.

12-04-2009, 04:23 PM	#11
Frizzle Fry Registered User Join Date: Aug 2005 Location: Hillsboro Oregon Posts: 6,449	Re: '66 Sunbeam Minx Project - F20C/6sp/4-link/Discs... I don't seem to get shrinkage from grinding. Maybe I use less pressure. I have been taking the welds down to near-surface level with a grinding wheel, then hitting them with the flap disc, then 80 grit DA. The key to avoiding warpage starts with the weld itself. On thin stuff I tac-tac-tac, jumping around to avoid too much heat in one area. It ends up looking like the steering column pass-through pic in my previous post before grinding. Not the prettiest to look at but it all gets ground smooth anyway.



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