In article 20180411030240.7846a679@Mars,
Rob Morley wrote:
On Mon, 09 Apr 2018 11:03:35 +0100
"Dave Plowman (News)" wrote:

In article ,
Cursitor Doom wrote:

Shouldn't really happen with steel. Aluminium, yes, but not steel.

Err, I've just said it does. I'd suggest you try it before
commenting.

I cut ally with my circular saw. Gives a perfect cut. Hence me asking
earlier about similar for steel.

You're possibly not pressing hard enough - the wheel needs to lose the
blunted/clogged grit to expose fresh abrasive.

Here, that seemed to produce the very worst results. Best way was short
sharp bursts allowing things to cool in between. But I didn't try massive
pressure.


The resin that bonds
the abrasive particles is designed to wear away at a rate suitable for
whatever material the disc is designed to cut, so it will be pretty
tough for steel.
Try taking multiple nibbles (press and release, press and release ...)
rather than applying steady pressure in one go.

That's what I did. But the thing still stopped cutting.

Best results on this square tube would likely have been with a corner
square to the disc. But the vice on the stand not big enough to allow
this. Once it had sort of broken through, it cut just fine.

Other thing was with the maximum depth of cut with this setup, anything
other than starting with the tube flat and square in the vice required
more than one pass.

But job's finished now and OK. Perhaps I should just have bought the
aluminium version of the tube, as that cuts perfectly using my circular
saw. But it is over twice the price. Probably strong enough for the job,
though.

--
*Oh, what a tangled website we weave when first we practice *

Dave Plowman London SW
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