Added with nano composite powder material, controlled ring structure and strengthened binder phase give the material outstanding wear resistance and toughness, with longer service life and stability.

Extra fine rich W phase even dispersion improves thermal conductivity, hot-cracking resistance and plastic deformation resistance. 

Perfect Ta/Nb proportion combined with high N content gives excellent red-hardness.

Covering wide range of applications from finishing to semi-finishing, with good surface quality.

New surface treatment techniques make more stable cutting!

YNT251

Dedicated for turning and boring

Can be widely applied in industries of machinery,mining, railway, automobile, energy, aerospace and aviation, precision instrument, etc.

Case 1

Blank(with crater in inner wall) Finished product

Work piece material: S20C

Machining style: internal hole making

Work piece diameter: 127 MM

Cooling condition: dry cutting

Insert: YNT251/TNMG160404-DF

Cutting data: Vc=320 m/min,  f=0.2 mm/r, ap=0.5 mm

Cutting depth is 2 mm in total,completed by 4 passes. As rough is cratered in inner wall, products of Company A are prone to edge chipping with average machining capacity of 26 pieces/edge. ZCC·CT products work stably, completing 55 pieces/edge, with evidently superior performance.

Tool wear comparison after machining 26 pieces

ZCC·CT product  (Normal wear) Product of Company A  (Edge chipping)

Case 2

Blank           Finished product

Work piece material: Q235

Machining style: internal hole making

Work piece diameter: 17 mm

Cooling condition: water soluble cooling liquid

Insert: YNT251/DCGT070204-SF

Cutting data: Vc=250 m/min,  f=0.14 mm/r,  ap=0.3 mm

Wear comparison after machining 450 pieces