Section H 25-26

Sumi Dual Mill DGC Series ■ Grade Application Range Work Material Grade Finishing to Light Cutting Medium Cutting Rough to Heavy Cutting

Work Material

Finishing to Light Cutting Medium Cutting Rough to Heavy Cutting Grade

ACU2500

ACU2500

C

ACP100

C

ACK200

Cast Iron

ACP200

Steel

P

ACK300

P

ACP300

P

H

T4500A

DL1000

P

ACU2500

Non-Ferrous Metal

H1

C

ACM200

Stainless Steel

ACM300

P The letters "C" and "P" at the end of each grade indicate the coating type. C

P : CVD, : PVD, Blank: Uncoated

■ Coating Features Super FF Coat (CVD: C hemical V apor D eposition) C

Achieves excellent chipping resistance with smooth coating and our coating stress control technology High-speed, high-efficiency machining at a level more than 1.5 times higher than conventional tools is possible with a high hardness coating layer Achieves more than double the tool life of conventional tools under the same cutting conditions Provides excellent wear resistance and high reliability thanks to our coating stress control technology and the ultra- fine crystal grain coating layer of the Super FF Coat achieved through our proprietary CVD process technology

Characteristics of the Coating Layer

Fracture Resistance

0.7

DGC Type

Coating Hardness: 30% Increase Surface Roughness: 50% Reduction

Super FF Coat

0.6

Alumina

50

DGC Type

f z (mm/t)

0.5

DGC Type

40

Conventional coating

0.4

DGC Type

TiCN

30

0

ACP100 ACM200 ACK200 Super FF Coat

Competitor's Product Competitor's Product Competitor's Product

20

Substrate

Work Material:1050 Carbon Steel, Tool: ø 4.000” Cutting Conditions : v c = 500 SFM , a p = 0.12” , a e = 3.000” , Dry

0.05 0.10 0.15 0.20

Cross-section of Coating

TiCN Surface Roughness Ra (μm)

New Super ZX Coat (PVD: P hysical V apor D eposition) P Employs our super multi-layered New Super ZX Coat, which utilizes our proprietary thin-layer coating technology and advanced nanotechnology. The coating consists of thousands of alternating, nanometer-thin (1 nanometer = 1 billionth of a meter) layers. Compared to conventional tools, the coating hardness has been increased by 40% and the oxidation starting temperature has been increased by 200°C.

Enables more than 1.5 times the machining speed and efficiency of conventional tools. Achieves more than double the tool life of conventional tools under the same cutting conditions Characteristics of the Coating Layer Wear Resistance Film Features Fracture Resistance

0.30

Competitor's Product A

0.7

New Super ZX Coat

0.25

60

Low wear

DGC Type

Competitor's Product B

0.6

0.20

DGC Type

Super ZX Coat

50 f z (mm/t)

DGC Type

0.15

0.5

Laminating Cycle up to 10nm

DGC Type

40

ZX Coat

0.10

0.4

TiCN DGC Type

0.05

30

TiAIN

0

ACP200 ACP300 ACM300 ACK300 New Super ZX Coat

0

Competitor's Product Competitor's Product Competitor's Product

1

3

5

10

20

25

TiN

20

Number of Passes (1 pass = 300mm)

600 800 1,000 1,200 Work Material:1050 Carbon Steel, Tool: ø 4.000” Cutting Conditions : v c = 500 SFM , a p = 0.12” , a e = 3.000” , Dry Oxidisation Starting Temperature (°C) 10nm

Work Material: 4130 Structural Steel, Tool: ø 4.000” Cutting Conditions : v c = 760 SFM , f z = 0.059 IPR , a p = 0.08” , a e = 3.35” , Dry

Film Cross-Section (TEM Image)

H33

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