how to cut aluminium cleanly??

[wozzzzza]

This is the same blade I have for both my TS and SCMS.
BOSCH 305mm 100T TCT Circular Saw Blade for Multi-Purpose Cutting - MULTIMATERIAL | Total Tools

this is my size, will give it a try, but whats the difference between mine i have now and this?

https://www.totaltools.com.au/135960...ial-2608644604

This is the same blade I have for both my TS and SCMS.
I see the prices have gone up horrendously.
I bough the one for the TS 15 years ago and I think it cost me $90. The blade for my SCMS cost $120 about 3 years ago.

what hasnt gone up?? being 15 years ago at $90 i was expecting $180 when i clicked that link.

[EagerBeaver71]

I'm not convinced its the blade that's causing the problem. What TS are you using?, fence setup etc?.

[aldav]

My current aluminium cutting blade is a CMT, 235mm, triple chip grind, 6 degree neg. rake, 48 teeth. I agree with Jack that the blade you've linked to appears to be negative rake. I can't understand why you're not getting a relatively clean cut from it regardless of what you paid for it. Makes me wonder whether there is something else going on. Have you tried cutting a piece of timber with it?

[jack620]

I'm not convinced its the blade that's causing the problem. What TS are you using?, fence setup etc?.

He’s using a mitre saw.

Other possible problems? Blade on backwards. Incorrect or no arbor bushing used (assuming the arbor isn’t 30mm).

[EagerBeaver71]

He’s using a mitre saw.

Other possible problems? Blade on backwards. Incorrect or no arbor bushing used (assuming the arbor isn’t 30mm).

Blade on backwards would give similar results to what he's reporting.

[wozzzzza]

I'm not convinced its the blade that's causing the problem. What TS are you using?, fence setup etc?.

your are correct. i just went to the shed to have a look, guess what, blade is on damn backwards.

IM A BIG BLOODY

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[EagerBeaver71]

your are correct. i just went to the shed to have a look, guess what, blade is on damn backwards.

IM A BIG BLOODY

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We've all done it lol.

[EagerBeaver71]

When you have eliminated the impossible, whatever remains, however improbable, must be the truth, also eliminating the most obvious first is always a good place to start.

Elementary my dear Beaver.

[wozzzzza]

We've all done it lol.

i saw old blade writing pointing out, so i just threw the new one on writing pointing out without thinking.

[yvan]

This is the same blade I have for both my TS and SCMS.
BOSCH 305mm 100T TCT Circular Saw Blade for Multi-Purpose Cutting - MULTIMATERIAL | Total Tools

I see the prices have gone up horrendously.
I bough the one for the TS 15 years ago and I think it cost me $90. The blade for my SCMS cost $120 about 3 years ago.
It does a great job on Al and plastics. It will even cut wood - slowly and very smoothly.

BobL,

What sort of materials will it cut?

[BobL]

Looking at the blade in wozzza’s link, it does appear to have negative rake on the teeth.

I think the issue might just be the quality of the blade. $30 doesn’t get you much in a 10” aluminium blade.

Thanks Jack, that blade should work OK. Maybe try slowing down the feed rate?

[jack620]

Maybe try slowing down the feed rate?

All sorted Bob. He had the blade on backwards. So does a negative rake blade installed backwards have a positive rake?

[BobL]

Blade on backwards - its not the first time this has happened - It even happened to an experienced woodie on this site who seems to have evaporated.

Negative rake applies to the forward facing face of the tooth - when on backwards in practice it becomes a hyper negative rake which will still cut but will get super hot hence the excess galling.

[wozzzzza]

this is all i can say.
learn from my stuff up
blade.jpgblades.jpg