15-01-17, 04:20 PM
(15-01-17, 02:27 PM)ram link Wrote: [quote author=unfazed link=topic=21666.msg249911#msg249911 date=1484438601]heating would still make the hole bigger
Heating it would expand it and make it smaller internally. :lol
thats why you heat a tight lid on a jar to loosen it - the whole lid increases in diameter not just the outside.
i used to work in a railway workshop where we fitted steel wheels to axles by heating the wheel
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It was late and I couldn't be bothered arguing.......................