DoTriple-Mill – Frame for construction machinery – AH120


Face milling of the construction machinery frame. It is necessary to remove the bead from the welding, but the conventional 45° face milling cutter had caused sudden breakage.
To prevebt the breakage, we proposed a low-depth-of-cut, high-feed machining using the DoTripleMill round insert.
As a result, we succeeded in suppressing sudden breakage and achieved a 1.8 times improvement in machining efficiency.

Industry Heavy
Component Frame for construction machinery
Material ISO code P - SteelP - Steel
Work material SS400
Machine(spindle type) Vertical Machining Center Large(#50,HSK100)
Tool family Milling
Tool category Face milling
Product name DoTriple-Mill
TSR No. 5032M
Frame for construction machinery


Tungaloy Competitor
Body TASN13J160B50.8R08 Face mill cutter
Effective number of teeth 8 7
Cutting diameter 160 160
Insert RNMU1307ZNEN-MJ SEMT insert
Number of cutting edges 8 4
Grade AH120 PVD

Cutting conditions

Tungaloy Competitor
Cutting speed V/c (mm/min) 276 276
Feed per tooth f/z (mm/t) 0.45 0.17
Feed speed Vf (mm/min) 1977 653
Depth of cut ap (mm) 1.5 2.5
Width of cut ae (mm) 100 100
Coolant Dry Dry


Productivity1.8 times