Общий каталог Sumitomo 2019 - 2020 - страница 333

SEC-Grooving Tools SEC-Grooving Tools

GND Type GND Type
SEC-Grooving Tool Holders GND Type

Key Points for Necking
Precautions for Necking Recommended Chipbreaker RN
Distance from Work Material to Necking Depth


Grooving
Tools
Width of Cut Necking Depth Distance from Work Material to Necking Depth


DMIN
CW (mm) APMX (mm) APMX2 (mm)
2.0 1.5 0.64
3.0 2.0 0.79
F
AP


45° 4.0 3.0 1.29

APMX2
MX


5.0 3.5 1.44
6.0 4.0 1.59
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
1.
0m


50mm
m


Work Material : SCM435 Groove Width: 3.0mm
Holder : GNDN R2020K-325-020 Insert: GCMN3015-RN
Cutting Conditions: vc=100m/min, f =0.1mm/rev
Undercut Depth = 1.0mm Wet


F19