Which is better to start a small hole cut . A Tangent or a Perpendicular start for a lead in ?
Semi circle to tangent in a ideal world.
Hole diameter and the material thickness really does affect what the optimal parameters for a lead-in, lead-in radius, lead in speed, reduced radius cutting speed(feed rate optimization), finishing overlap
and potential lead out radius and lead out.
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What would you recommend ??
What size hole diameter?
what thickness of material?
what type of material?
A lot of the time I might default to
Leading radius of .02
60° lead in
Leading of .05
The same for Lead out
Finishing over lap of .03
But I would change this up depending on the diameter and thickness
1/2 inch hole 1/4 inch cold rolled metal …
No lead in
a .25 lead in radius
Reduce feed rate by 60% for the hole
Finishing overlap of .03
That would be a good start to get a semi circle tangent lead in.
Thanks… For the advice
I think we’re both trying to answer the same time
I think our message timing kind of got off