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Machining the turbine shaft

1. LNMR indexable insert: heavy turning

System solutions for cutting depths of up to 45 mm

  • Feeds up to 2.6 mm
  • Cutting depths of up to 45 mm can be achieved
  • Perfect chip control
  • Latest generations of carbide grades

Buy LNMR indexable inserts in the online shop

2. HX grooving system: heavy grooving

Overhead tools with chip breaker for perfect chip evacuation

  • Maximum process security
  • Optimal chip control with chip breaker –R81
  • Comprehensive portfolio up to a groove width of 60 mm

Buy HX indexable inserts in the online shop

3. DNMM indexable insert: finish turning

Masterfinish technology for excellent surface quality at above-average feeds

  • Optimum surface quality
  • Shorter machining time
  • Feeds up to 1.6 mm 

Buy negative indexable inserts in the online shop

Application example: heavy turning (1)

Component: Turbine shaft
Material: 1.6967 X3CrNiMoN18-14

Application data

  • Tool: HDHTR WK266-125.1LN50SC.75
  • Indexable insert:  LNMR 501432SN-R98 CTCP125
  • Vc = 35 (m/min)
  • ap = 0 - 45 (mm)
  • fz = 1.6 (mm)

A tool life of 115 minutes was achieved for this difficult interrupted cut!

Result: Chip removal rates + 40% | Service life + 30% compared to the competition

Application example: heavy grooving (2)

Component: Turbine shaft
Material: 1.6951 (24NiCrMoV10-10) – 1000N/mm²

Application data

  • Tool: HDHON K36.1HX40HE
  • Indexable insert:  HX 40.24.90-R81 CTCP125
  • Vc = 35 - 43 (m/min)
  • ap = 40 (mm)
  • fz = 0.8 – 0.85 mm

→ Perfect chip control
→ Maximum process security 
→ No need to calibrate the new grooving insert after an insert change

Result: Perfect chip control | Maximum process security | Outstanding tool life

Application example: finish turning (3)

Component: Turbine shaft
Material: 1.6967 X3CrNiMoN18-14

Application data

  • Tool: PSC80-DDXNR-19-D07
  • Indexable insert:  DNMM 190724EN-R28Q CTCP115
  • Vc = 90 (m/min)
  • ap = 1.2 (mm)
  • f = 1.3 (mm/rev)

→ Here Ra values between 2.12 and 2.22 are achieved.

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