Page 188 - Threading_Handbook
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3.7 Straight vs. Helical Cutting Shape
THREAD MILLING The table below describes the differences between the use of tools with helical cutting
edges and tools with straight cutting edges.
Helical Cutting Edges
Straight Cutting Edges
• Radial cutting forces act on a plane. • Radial cutting forces are distributed
• The same size inserts can fit to several along a helical curve.
cutter diameters. • Each insert size is dedicated to a
• Double-sided inserts - available inserts specific cutter diameter.
with two cutting edges • Single-sided inserts - available inserts
with one cutting edge only.
• Reduces vibration
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