Trepanning
Cutting a circular groove or hole leaving the centre material in place or forming a separate disk. A more efficient technique that boring or drilling in that it removes less material
October 4, 2008

The latest mini project is the making of a doughnut shaped ring in 3mm sheet aluminium. The inner diameter is 54mm and the outer diameter is 70mm. The outer edge needs to be rounded off. The part is to act
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Posted in: Bezel, Lathe, Machining, Trepanning, Work Holding
Materials: Aluminium
Tags: boring
April 20, 2008

“Can you make me up a 38mm washer with a 19mm bore”, said my father, “in 3.5mm stainless steel” he added. My first problem was finding a supplier for the stainless steel. I quickly discovered that I was not going
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Posted in: Stainless Steel Washer, Trepanning, Turning
Materials: Stainless Steel
Tags: 316, boring, Metal Work, washer