Gear shaper cutters

Gear Shaper Cutters

Company：NIDEC MACHINE TOOL CORPORATION

Features 1

SuperDry shaper cutter

Features

High precision finishing enabling shaving-free processing
Increase of efficiency and productivity
Extended tool life by two to five times compared with conventional wet cutting coated with TiN can achieve cost reduction.
Gear shaping without cutting oil improving working environment

The processing sample shows the longer cutting tool life.

Work	m3, PA 14.5°, 30T, supr gear
Work	O.D. 94mm, Width 28mm, SCM420H(HB180)
Cutter	51T, O.D. 157.5mm, MACS
Cutter	SuperDry with cutting face coating
Cutting condition	Number of stroke 450/900/700str/min
Circumferential feed	2.7/2.7/0.76mm/str
Radial feed	0.01/0.01/0.01mm/str

Processing example showing longer tool life

Samples

Work	m2, PA 20°, 38T, supr gear
Work	O.D. 81mm, Width 16.5mm, SCr420H(HB180)
Cutter	66T, O.D. 137.068mm, MACS
Cutter	SuperDry with cutting face coating
Cutting condition	Number of strokes 700/1200/1200str/min
Circumferential feed	2.51/1.26/1.26mm/str
Radial feed	0.01/0.015/0.015mm/str

The status of cutting face after cutting 4000 workpieces

Tooth profile chart (after processing 4000 pieces)
x500 x4 (JIS N6 equivalent)

Lead chart (after processing 4000 pieces)
x500 x4 (JIS N4 equivalent)

The shaper cutters with SS treatment can reduce tears of gears.

SS treatment stands for the special treatment for reducing the roughness on the cutting tool surface.

Example of processing

Work	m 2, PA 20°, NT 29, HA 35°, LH,
Work	O.D. 79mm T.W.25, SCM420H
Cutter	NT 64, O.D. 160mm, MAC B+ Dyanamic
Cutter	without cutting face coating

Processing by Shaper cutters

Attach the shaper cutter to the gear shaping machine and perform gear cutting in vertical direction from the upper to the down section and back to the upper section (non-cutting) in reciprocal motion.
As cutting cannot be performed at the returning motion, cutting is not as efficient as hobbing with continuous processing.
While helical guide is required at helical gear processing which involves torsional motion, our lineup features the Flexible Guide Type Gear Shaping Machine (ST series).