HP chipbreaker

t_518_t_01

CBN insert with chipbreaker for finishing hardened steel

Innovative 3D chipbreaker on CBN inserts for efficient chip control for finishing hardened steel

Applications & Features

Internal turningExternal turning

1. New HP chipbreaker For Finishing Hardened Steel

• By separating the chipbreaker from the cutting edge, the cutting force imposed on the cutting edge during machining is significantly reduced, thus providing long tool life.
• The cutting edge preparation is designed to ensure easy cutting at low cutting forces, while maintaining close tolerances with no deviations.
• The HP style chipbreaker, combined with built-in wipers, yields excellent surface quality and good chip control.

2. Chip control is stable for a long time

Inserts & Grades

Inserts

HP chipbreaker

  • CBN insert with chipbreaker for finishing of hardened steel
Main Grades

BXM10

  • Coated CBN for excellent performance in high-speed continuous cutting of hardened steel

BXA10

  • First choice for continuous to light interrupted cuts of hardened steel turning
  • For cutting speed = 230 m/min or less

BXA20

  • First choice for light to heavy interrupted cuts
  • For Vc = 180 m/min or less

Practical examples

Part: CVJ part
Material: SCR420(JIS) (60HRC)
Toolholder: ACLNR2525M12-A
Insert: 2QP-CNGM120408-HP
Grade: BXM10
Cutting conditions: Vc = 250 (m/min) (820 sfm)
f = 0.20 (mm/rev) (.08 ipr)
ap = 0.20 (mm) (.08″)
Application: External turning & facing
Coolant: Wet
Machine: NC lathe
Part: Shaft
Material: SCM420(JIS) (59HRC)
Toolholder: SDJCR2525M11
Insert: 2QP-DCGT11T304-HP
Grade: BXM10
Cutting conditions: Vc = 120 (m/min) (394 sfm)
f = 0.05 (mm/rev) (.002 ipr)
ap = 0.20 (mm) (.08″)
Application: External turning
Coolant: Wet
Machine: NC lathe
Part: Sprocket
Material: SCM415(JIS) (55HRC)
Toolholder: ACLNL2020K12-A
Insert: 2QP-CNGM120404WL-HP
Grade: BXA20
Cutting conditions: Vc = 120 (m/min) (394 sfm)
f = 0.05 (mm/rev) (.002 ipr)
ap = 0.10 (mm) (.04″)
Application: External turning
Coolant: Wet
Machine: NC lathe

Standard cutting conditions

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