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Chat Area => General Discussion Area => Topic started by: Varche on 09 October 2022, 20:21:20

Title: Cutting cast iron
Post by: Varche on 09 October 2022, 20:21:20

One of our log burners grates broke in half. The model is now obsolete. The best the company could offer is a current model BUT it has two one inch lugs to remove which is my job.

I have a decent Bosch large angle grinder. Will a premium” diamante”? metal cutting disc do the job? Any tips? Wet the job? Oil it?

Title: Re: Cutting cast iron
Post by: Migv6 le Frog Fan on 09 October 2022, 20:53:32

A decent grinder and blade should chop through it easily enough. I was a Fettler / trimmer in a cast iron foundry for several years.
Never needed water or oil to help cut it. Just a decent grinder with the right blade attached.

Title: Re: Cutting cast iron
Post by: Nick W on 09 October 2022, 20:54:33

Basic metal cutting discs will do the job. As always, use the thin ones.


I would probably use a hacksaw......

Title: Re: Cutting cast iron
Post by: Migv6 le Frog Fan on 09 October 2022, 20:56:02

You must be a masochist.  ;D

Title: Re: Cutting cast iron
Post by: Nick W on 09 October 2022, 21:14:41

Quote from: Migv6 le Frog Fan on 09 October 2022, 20:56:02

You must be a masochist.  ;D

For a pair of small lugs? By the time you've found the grinder, changed the disc for a known good one, cut the lugs off, smoothed the cuts and cleaned up all the iron dust, hacksawing them off often looks like a good option. And you won't be snorting black snot for the rest of the day :y

Title: Re: Cutting cast iron
Post by: Varche on 09 October 2022, 22:43:23

No, I will use an angle grinder and protective gear. Got plenty of that.

Thanks.

Title: Re: Cutting cast iron
Post by: Andy B on 10 October 2022, 08:42:53

 .... and you get nice red coloured sparks.

Can you not get your old grate welded back together? Heat it up & use cast rods  :-\

Title: Re: Cutting cast iron
Post by: Varche on 13 October 2022, 15:30:08

Job done. Quite easy thanks.

Fitting it isn’t going to be so easy. Just like the heater matrix on a car, the grate appears to be the first item fitted on the production line. So I have left that for a morning task. Nowadays, I seem to have more energy in a morning.

Title: Re: Cutting cast iron
Post by: Sir Tigger KC on 13 October 2022, 17:17:32

Quote from: Varche on 13 October 2022, 15:30:08

Job done. Quite easy thanks.

Fitting it isn’t going to be so easy. Just like the heater matrix on a car, the grate appears to be the first item fitted on the production line. So I have left that for a morning task. Nowadays, I seem to have more energy in a morning.

I'm the opposite, being somewhat a creature of the night..........  >:D

Title: Re: Cutting cast iron
Post by: Varche on 13 October 2022, 18:25:56

 :o

Title: Re: Cutting cast iron
Post by: Sir Tigger KC on 13 October 2022, 23:38:17

 ;D

More of a night owl than a vampire though.  ::)   :)