The substrate with good toughness and high security of cutting edge, in optimalcombination with coating composed of MT-TiCN, thick layer of AI2O3 and TiN makes it suitable for steel semi-finishing

Coated cemented carbide CVD

Thanks to the technology of gradient sintering, impact resistance of cutting edge and wear resistance are improved which lead to improve capablity of cutting edge against damage.
Carbide with special crystal structure and strengthens heat resistance of inserts.
TiCN layer acts against abrasion which leads to the best wear resistance of the flank.
Specialstructure of AI2O3 deposit layer acts as a thermal barreir and strengthens the capability of substrate against plastic deformation under dry and high-speed cutting conditions.
Golden surface of Tin can reduce friction and enble easy distinction of the variety of wear.

Aplication:

Material	Material Characteristics
Carbon Steel, Alloy Steel and Tool Steel 36-48 HRC:	• Higher carbon content • Higher chrome, nickel, and moly content • Tough material to machine • Abrasive • Difficult to break and control the chip flow • The material surface will harden when machined at high speed • Good surface finish
Ferritic, Martensitic, and PH Stainless Steel under 48 HRC	• Brittle • Stringy chips • High cutting force • The material will harden when machined at high speed.
Austenitic Stainless Steel:	• Becomes gummy under machining operations due to nickel content • Very difficult to machine in soft conditions • Very difficult to machine at a small depth of cut • Develops a tough string of chips that are difficult to control. Forms a build-up on the insert tip • Low thermal conductivity results in excess heat at the insert tip • Material surface will harden due to high chromium content
Ductile and Malleable Cast Iron	• Very difficult to machine • Small depth of cut • Spherical form graphite makes machining difficult • The carbide concentration creates hard spots • The material structure is not uniform • The crater wear and flank of the insert makes machining difficult • The insert tool life is less than gray cast iron
Gray Cast Iron	• Flake form of graphite makes machining easy • Contains scale, inclusions and sand in the surface • The material will break easily on the end of the cut • Tendency to chatter and vibrate on thin wall section • Chucking and rigidity of the workpiece is extremely important to minimize distortion, to achieve a good finish and close tolerance.

The Chipbreaker Instruction of Carbide Indexable CNC Turning Inserts
DF	Chip-breaker with special angle design can make cut easy,control chip and get good surface quality.
DM	Widely used chip-breaker is used for semi-finishing and finishing machining steel and stainless steel.
DR	Special chip-breaker with high toughness cutting edge can reduce cutting force.
PM	With stronger cutting edge,it is better for intermittent cutting than -DM,with widely cutting zone of P type material.
HF	With sharp cutting edge,used for finishing machining inner hole,fine finishing surface can be got with small feed rate.
HM	With sharp wave cutting edge to reduce cutting force,it is the first choice for semi-finishing machining of inner holes and can make chip flow smoothly.
HR	With tough cutting edge,used for roughing/machining of inner hole and intermittent machining workpiece with irregular surface.
LH	Mainly recommended for finish turning,Typical parts: Ordinary aluminum parts.

Recommended cutting parameters (Steel 4140,8126)

Semi-finishing
Grade XHC251/252
Cutting speed 160-440(XHC251)
Cutting speed 180-480(XHC252)

Carbide turning inserts specifications :

CCMT060204	CNMG190612	TCMT090204	VNMG160404
CCMT060208	CNMG190616	TCMT110204	VNMG160408
CCMT09T304	DCMT070204	TCMT16T304	WNMG080404
CCMT09T308	DCMT070208	TCMT16T308	WNMG080408
CCMT120404	DCMT11T304	TNMG160404	WNMG080412
CCMT120408	DCMT11T308	TNMG160408	KNUX160405R11
CNMG120408	DCMT11T312	TNMG220404	KNUX160405L11
CNMG120412	DNMG150604	TNMG220408
CNMG160608	DNMG150608	TNMG220412
CNMG160612	DNMG150612	VBMT160404
CNMG190608	SNMG120408	VBMT160408

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machining carbide inserts

tungsten carbide tool inserts

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