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Lubricate or Not?

Hacksawing lubrication?

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nick morrison	20/02/2011 12:30:30
23 forum posts	I am converting some old cast iron by hand. What is the recieved wisdom on lubrication of hacksaw cuts? I was taught to use light oil. This seems to work fine - but most authorities suggest dry cutting to avoid a sliding of the hacksaw. Any thought? Regards, Nick.
JasonB	20/02/2011 13:07:53
25215 forum posts 3105 photos 1 articles	On CI I would cut dry, on steel I brush a bit of soluable cutting fluid onto the blade. J
Nicholas Farr	20/02/2011 14:43:31
3988 forum posts 1799 photos	Hi Nick, I agree with Jason. It is generally accepted that cast iron is self lubricating. Regards Nick.
mick	20/02/2011 16:52:25
421 forum posts 49 photos	Way back when, most castings were "Chilled" and therefore very hard to machine with the tooling of the day. If oil impregnation was considered not to be a problem, then paraffin was most commonaly used to good effect. If my memory hasn't completely failed, we used to use tallow as well. Regards. Mick
nick morrison	21/02/2011 00:14:51
23 forum posts	Thanks for the replies. I've been in the workshop tonight and dry cutting really works. I think I was getting confused with mild steel and I presume some lubrication (as you state) here is useful. Thanks, I've buried a prejudice. Nick

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