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Gallery / Re: Small Punch Tool
« Last post by philf on May 07, 2024, 08:49:15 AM »Bill, I like the look of the wire edm. I want one!
I've made form tools for making small pinion cutters (for clocks) by machining with small (0.8mm dia.) carbide milling cutters. I'm then automatically limited to a 0.4mm radius. With a 0.3mm dia wire this is reduced to 0.15mm which is acceptable. As well as the reduced corner radius, milling tool steel with 0.8mm end mill is a bit testing.
(I'm using a Eureka relieving attachment for the pinion cutters.)
The only real concern is the finish - would it be good enough for a form tool?
Phil.
I've made form tools for making small pinion cutters (for clocks) by machining with small (0.8mm dia.) carbide milling cutters. I'm then automatically limited to a 0.4mm radius. With a 0.3mm dia wire this is reduced to 0.15mm which is acceptable. As well as the reduced corner radius, milling tool steel with 0.8mm end mill is a bit testing.
(I'm using a Eureka relieving attachment for the pinion cutters.)
The only real concern is the finish - would it be good enough for a form tool?
Phil.