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Old 27th Jun 2019, 4:43 pm   #8
emeritus
Dekatron
 
Join Date: Jan 2012
Location: Brentwood, Essex, UK.
Posts: 5,337
Default Re: Polishing aluminium

At Plessey, the workshop used to use a rag mop wheel on a bench grinder for polishing aluminium alloy. I don't know if this involved any cutting fluid or whether the rag itself was sufficient, but it was used to good effect on the die cast aluminium alloy eddystone boxes used extensively in one of our projects. The highly polished finish avoided the need for painting or other surface preparation.
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