GND Type SEC-Grooving Tool Holders GND Type
Grooving Tools GND Type
Key Points for Necking
RN Recommended Chipbreaker
Precautions for Necking
Distance from Work Material to Necking Depth
Seat Size CW (mm)
Necking Depth APMX (inch/ mm )
Distance from Work Material to Necking Depth APMX2 (inch/ mm )
2 3 4 5 6
.059 / 1.5 .079 / 2.0 .118 / 3.0 .138 / 3.5 .157 / 4.0
.025 / 0.64 .030 / 0.79 .050 / 1.29 .055 / 1.44 .060 / 1.59
F
APMX2
· For necking, these conditions are recommended for each width of cut when grooving with RN type chipbreakers. · To prevent interference with the work material, the work diameter for each GNDN type holder should be set to the minimum machining diameter (DMIN) or less.
Chip Shape
F
Grooving
Tool
50mm
Part Material
: Cr–Mo Alloy Steel, Seat Size: 3
Holder
: GNDN R2020K-325-020 Insert: GCMN3015-RN
Cutting Conditions: v c = 330 SFM, f =0.004 IPR Undercut Depth = 0.039” Wet
F32
F19
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