Filing Cast Iron

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Filing Cast Iron

This topic has 11 replies, 10 voices, and was last updated 28 June 2018 at 15:21 by mechman48.

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27 June 2018 at 19:34 #9235
Malcolm Harvey
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@malcolmharvey97633
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27 June 2018 at 19:34 #359680
Malcolm Harvey
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@malcolmharvey97633
I am not particularly a beginner but I thought I would ask this question here as it is likely something that every beginner should know.

I have turned a set of wheels for my 3½G Titfield Thunderbolt but I have casting flash between the spokes (of course). I have tried filing this out with swiss files but they clog almost immediately. Does anyone have any suggestion as to what would be the best tool to use for this job?

TIA

Malcolm
27 June 2018 at 19:47 #359682
Weary
Participant
@weary
Dremel – or similar – with carbide burrs.

(Plus tight-fitting goggles as abraded cast-iron mini-granules get everywhere!)

Regards,

Phil
27 June 2018 at 23:28 #359718
Jim Nic
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@jimnic
+1 for a Dremel

Jim
27 June 2018 at 23:52 #359722
vintagengineer
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@vintagengineer
Rub chalk on the file and use a file card to clean the file.
28 June 2018 at 08:35 #359738
Baz
Participant
@baz89810
In my very humble opinion a much better way to clean a file is to use a piece of brass or a fine brass wire brush.
28 June 2018 at 08:41 #359739
roy entwistle
Participant
@royentwistle24699
Baz The chalk is not to clean the file it's to stop clogging. Definitely a bit brass or copper for cleaning

Roy
28 June 2018 at 08:45 #359740
Chris Evans 6
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@chrisevans6
What "Cut" is your file ? I use "O" cut for those sort of jobs.
28 June 2018 at 09:07 #359743
Michael Gilligan
Participant
@michaelgilligan61133
For small areas of 'casting flash' I have found that diamond 'needle files' work better than conventional ones.

A few years ago, this would have seemed an extravagance; but the availability of [cheap & cheerful] sets from the likes of Aldi and Lidl has changed my approach.

MichaelG.
28 June 2018 at 09:07 #359744
Bazyle
Participant
@bazyle
Posted by Baz on 28/06/2018 08:35:29:

In my very humble opinion a much better way to clean a file is to use a piece of brass or a fine brass wire brush.

Only really works for single cut files.
28 June 2018 at 14:22 #359784
Malcolm Harvey
Participant
@malcolmharvey97633
Thanks for the input. Learnt a bit! Never heard of putting chalk on a file to stop it clogging, Never have thought of using a Dremel and I hadn't heard of diamond needle files. I have just looked in Boyes and they have pack of 5 for £4 or thereabouts.

Malcolm
28 June 2018 at 15:21 #359792
mechman48
Participant
@mechman48
+1 for the Dremel approach. I also use a rough 2nd cut to get under the meat of the flashing then titivate up with Dremel & carbide bit.

George.

Edited By mechman48 on 28/06/2018 15:21:37
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