FNGA/GNGA/YNGA

Applications & Features

Applications

Internal turning

External turning

Features

New CBN inserts for general turning

• GNGA insert with 70° corner angle
• FNGA insert with 45° corner angle
  • Smaller corner angle provides the insert with greater clearance between the insert flank and workpiece surface, allowing better chip flow and evacuation.
  • Enables greater D.O.C. in face turning applications in which the insert is pulled outward (fed away from the workpiece center).
• YNGA insert with 25° corner angle
  • Allows undercutting, V grooving, and other applications that are not possible with traditional V inserts.

High versatility

• Existing ISO turning toolholder can be used for these inserts.
  • For GNGA insert: Use the holder for CNxx1204 insert
  • For FNGA insert: Use the holder for DNxx1504 insert
  • For YNGA insert: Use the holder for VNxx1604 insert
• No offsets needed compared to ISO inserts, due to same geometry of cutting edge position.
• Double sided insert with 2 cutting edges.

Inserts & Grades

Practical examples

Example #1

Automotive Industry

Part:	Flywheel
Material:	FC250 / 250
Toolholder:	DCLNR2525M12
Insert:	2QP-GNGA120408
Grade:	BX470
Cutting conditions:	Vc = 500 (m/min) f = 0.10 (mm/rev) ap = 0.20 (mm) Application: Face turning Coolant: External supply

Example #2

General Engineering

Part:	Collet
Material:	SNCM220 / 20NiCrMo2
Toolholder:	A25R-ACLNR12-D320
Insert:	2QP-GNGA120408
Grade:	BXM20
Cutting conditions:	Vc = 70 (m/min) f = 0.06 (mm/rev) ap = 0.20 (mm) Application: Internal turning Coolant: Dry

Standard cutting conditions