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Cutting speed for UPVC

rowan.bradley

Plastic
Joined
Sep 6, 2022
What cutting speed should I use to machine UPVC on my lathe? And what tool shape is recommended? The particular task that I'm doing at present is to reduce the diameter of a solid 25mm dia UPVC rod a little, and to mill a slot in the end with a 5mm end mill.

Thank you - Rowan
 
Like all heavy machining, aim to take the heat with the swarf, sharp HSS is the way to go imho, though there are sharp carbide tips for Ali that suffice, cheaper to grind and hone an acute tool bit. Diamond laps are useful
Mark
 








 
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