DoTwistBall – Turbine Blade – AH3135


Long tool life and high productivity: Thanks to a large inclination and helical lead on the DTB insert, DoTwistBall achieved a light cutting action compared with an R6.0 (.24”) button cutter. The compact yet robust geometry of the insert improved accuracy and economy, while achieving stable machining with reduced risk of tool failures. Insert life has hence doubled, and metal removal rate has increased by 1.4 times.

Industry Power Generation
Component Turbine blade
Material ISO code M - Stainless steelM - Stainless steel
Work material 12CrMo
Machine(spindle type) Vertical Machining Center Large(#50,HSK100)
Tool family Milling
Tool category Profiling
Product name DoTwistBall
TSR No. 558M
Turbine blade


Tungaloy Competitor
Body TXLN04M050B22.0R07 Round insert cutter
Effective number of teeth 7 5
Cutting diameter 50 50
Insert LNMX0405R4-MJ Round type positive insert
Number of cutting edges 4 4
Grade AH3135 PVD

Cutting conditions

Tungaloy Competitor
Cutting speed V/c (mm/min) 270 270
Feed per tooth f/z (mm/t) 0.23 0.23
Feed speed Vf (mm/min) 2767 1977
Depth of cut ap (mm) 0.8 0.8
Width of cut ae (mm) 25 25
Coolant Coolant Emulsion Coolant Emulsion


Tool life2 times