Page 1220 - Master Catalog 2017, Inch

High-Performance Solid Carbide End Mills
Trochoidal Milling

„ Differences between hm and hx

In conventional milling, it makes sense to calculate the load to the cutting edge through hm.
With reducing the ae to very low values, you can calculate with the maximum chip thickness
hx to make sure that the feed per tooth is set up correctly.

Conventional Smart Machining
hm = 360º//∙qs∙ae/D∙fz∙sin x hx = 360º//∙qs∙2∙ae/D∙fz∙sin x

hm [in] = average chip thickness hx [in] = maximum chip thickness
fs [°] = engagement angle fs [°] = engagement angle
ae [in] = width of engagement ae [in] = width of engagement
D1 [in] = outer diameter tool D1 [in] = outer diameter tool
fz [IPT] = feed per tooth fz [IPT] = feed per tooth
r [°] = lead angle r [°] = lead angle
h [°] = helix angle * h [°] = helix angle *

* Solid End Mills: r = 90°-h
Trochoidal Milling can be performed with solid or indexable milling tools.

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