Carbide-Cutting-Insert

COWEE BRAND OF TURNING INSERT

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COWEE BRAND OF TURNING INSERT

GWR Serie of grade- Machining of high temperature alloys at line speeds of up to 80mm
PVD coating for high temperature alloy

GWR0101/GWR5251/GWR0103

insert

GWR0101

The Ultra-fine Grain Matrix Strengthened by the bonding phase has excellent hear resistance and wear resistance. It is suitable for finishing/semi-finishing turning of heat—resistant alloys and harden materials and general-purpose milling.

GWR5251
General grade that combines wear resistance and toughness excellent heat resistance and oxidation resistance. The first choice for semi-finish machining of high temperature alloys.

GWR5251

Excellent tough matrix combined with nano multi-layer coating.
Excellent shipping resistance, special good for rough milling of high temperature alloy.

Cutting Characteristics of Ni-based high temperature alloys

A. High cutting force: High temperature alloys have good plasticity and high strength.
And the cutting force required for processing is 2-5 times that of ordinary steel.

B. High cutting temperature: high temperature alloy has low thermal conductivity, so heat is concentrated and nit easily diffused during            machining, fast tool abrasion.

C. Machining hardening is serious: while its cutting, the hardness of the machining surface and the machined surface is 50-100% higher than the substrate.

D. Tool is easy to wear: high temperature alloy chips are hard and tough, not easy to break.
And it is difficult to chip its discharge.

Features of DM chip Breaker of High temperature Alloy

Double large rack angle design, sharp cutting edge, low cutting resistance, reduce groove wear effectively.
Special chip breaker and sufficient chip lake deign for effective chip breaking and holding.
Special treatment of the cutting edge, good integrity, and high wear resistance.
Good coating adhesion, smooth surface, smooth chip removal, good cutting life.

Cutting range chart

Cutting range chart

Machining Case No.1

Workpiece materials: K438
Workpiece: Guides
Cooling Type: Fluid cooling
Original brand: A foreign brand
Cowee insert: CNMG120408-DM/GWR0101
Cutting parameter：Vc:19m/min, F:0.15mm/r, Ap:0.85mm
Conclusion: Cowee insert cutting with low cutting resistance,
light and fast chip breaker, smooth chip discharge, and the
service life is the same as that of competitive products, in the
same quality of conditions. The price ratio advantage is obvious with high-cost performance.

Machining Case No.1

Machining Case No.2

Workpiece material: Ni-based 718 high temperature alloy
Workpiece: petroleum accessories-arbor
Cooling type: Fluid Cooling
Original brand: A foreign brand
Cowee insert: WNMG080408-DM/GWR0101
Cutting parameter：Vc:88m/min, F:0.15mm/r, Ap:3.1mm
Conclusion: Cowee inserts have a smooth chip removal process. Small cutting fluctuations,
high surface quality, strong wear resistance and chipping resistance of the substrate and three
times of the working life which greatly saves the cost on inserts.

Machining Case No.3

Workpiece material: Inconel 718
Workpiece: set screw
Cooling type: Fluid Cooling
Original brand: A foreign brand
Cowee insert: WNMG080408-DM/GWR5251
Cutting parameter：Vc:40m/min, F:2mm/r, Ap:0.21mm
Conclusion: Cowee inserts cutting light and fast with good chip breakage. Small cutting
resistance and equivalent to the life of the foreign brand, but Cowee insert is more costeffective.

Processing Sword for stainless steel

1. Chip breaker Features of stainless-steel finishing – BF

(1). Double large positive rake angle, fully ensure the sharpness of the edge.
(2). Small protrusion is more conductive to chip break.
(3). Large cutting-edge inclination can guide the chip flow very well
(4). Low cutting resistance, high surface finish of machined parts.

2. Chip breaker Features of stainless-steel semi-finishing-BM

(1). The combination of carriable blade width and variable rake angle consider the sharpness and strength of the cutting edge.
(2). Plum-sharped chip breaker structure, widen the chip breaking range of the insert.
(3). Suitable for semi-finishing of stainless steel.

Chip breaker Features

3. Chip breaker Features of stainless-steel finishing-BM

(1). Variable blade with and variable rake angle design, considering the sharpness and strength of the blade.
(2). Large chip breaker and chip lake design provides excellent chip breaking effect.
(3). Double chip breaker deign expands the back breaking range.
(4). Suitable for semi-finishing to rough machining of stainless steel.

3

Machining Case No.1

Workpiece material: stainless steel SUS304
Workpiece: Flange
Cooling type: Fluid Cooling
Original brand: A foreign brand
Cowee insert: WNMG080408-BR-GW3281
Cutting parameter：Vc:153m/min, F:0.2mm/r, Ap:1-2mm
Conclusion: Cowee inserts used for boring, uneven cutting allowance, Cowee inserts
processed 48 pieces of workpiece, a foreign brand processed 41 pieces of workpiece. The
tooling life increased by 17%, and has the advantage of the cost performance.

WNMG080408-BR-GW3281

Machining Case No.2

Workpiece material: stainless steel SUS304
Workpiece: Flange
Cooling type: Fluid Cooling
Original brand: A foreign brand
Cowee insert: WNMG080408-BR-GW3281
Cutting parameter：Vc:170m/min, F:0.2mm/r, Ap:1-1.5mm
Conclusion: Cowee inserts for processing stainless steel flange end face. Cowee insert
processed 69 pieces, a foreign brand processed 56 pieces. The tool working life increased by
23%. The advantage is obvious and customer is quite satisfied.

Machining Case No.3

Workpiece material: stainless steel SUS304
Workpiece: Flange
Cooling type: Fluid Cooling
Original brand: A foreign brand
Cowee insert: WNMG080408-BR-GW3251
Cutting parameter：Vc:220m/min, F:0.2-0.3mm/r, Ap:0.8-1.5mm
Conclusion: Cowee inserts for processing flange outer circle. Cowee inserts processed 16
pieces. A foreign brand processed 14 pieces. The tool working life increased by 14%, and
Cowee insert processing work piece surface finish is better than other competitors.

Machining Case No.4

Workpiece material: stainless steel SUS304
Workpiece: Pipe Joint
Cooling type: Fluid Cooling
Original brand: A foreign brand
Cowee insert: TNMG160404-BF/GW3281
Cutting parameter：Vc:47m/min, F:0.1mm/r, Ap:1mm
Conclusion: Cowee inserts is machining the outer circle of pipe joint, Cowee inserts processed
68 pieces. A foreign brand processed 49 pieces. The tool working life is increased by 39%.
The cost performance advantage is obvious.

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