Drill Coating
DEX Coating
Coating
■ General Features Sumitomo's next-generation drill coating utilizes nano-coating technology to provide more than double the tool life of conventional coatings.
■ Features
■ DEX Coating Application Examples
● Coating Design World's first combined super multi-layered coating made from alternating layers of two super multi-layered substrates.
GS Type MultiDrill with DEX Coating (after machining 100 holes)
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TiAlCr -based Super Multi-layered Coating
Competitor's product A (after machining 70 holes)
TiSi -based Super Multi-layered Coating
Cross-section SEM image
● Silicon and chrome improve wear, thermal and adhesion resistance. ● Super multi-layered structure offers improved chipping resistance.
Tool: MDW0800GS4 Part Material: Carbon Steel (200HB) Cutting Conditions: v c =230 SFM, f =0.0098 IPR, H =1.260", external coolant supply (water soluble)
DL1300
DL1500
Aurora Coat
DLC Coating (AURORA)
■ General Features DLC Coating - AURORA is a high-hardness, low-friction coefficient layer of DLC (Diamond-like Carbon) which dramatically improves adhesion resistance in drilling of aluminum alloy and non-ferrous metals, and works in combination with various drill designs to achieve stable long tool life.
■ Features ● Thin, ultra-smooth DLC coating with a low coefficient of friction Helps prevent adhesion to the cutting edge and requires significantly less cutting force during drilling of aluminum alloy and non-ferrous metals. ● High adhesion strength withstands stringent cutting conditions The world's first coating for cutting non-ferrous materials, with a special coating technique that significantly improves adhesion strength. ● A spectrum of colors Glossy colors are achieved by the special coating technique.
■ DLC Coating - AURORA Application Examples
AURORA Coating Super MultiDrill NHGS Type (after drilling 100 holes)
Clean cutting edge with no adhesion
Competitor's Product B (after drilling 20 holes)
Severe adhesion
Tool: MDW0800NHGS5 Part Material: Aluminum Alloy Cutting Conditions: v c = 650 SFM, f = .0394 IPR, H =1.260", internal coolant supply
Diamond Coating - SUMIDIA ®
■ General Features Our original polycrystalline diamond coating technology achieves over 10 times the wear resistance of uncoated carbide.
Excellent diamond film adhesion is achieved with a combination of a dedicated diamond coating alloy and a proprietary coating pre-treatment technique.
■ Diamond Coating - SUMIDIA ® Application Examples
■ Features ● Micro-grain diamond coating that provides the combination of high strength and high wear resistance on smooth surfaces that is required for CFRP drilling
SUMIDIA Coat
Competitor's Diamond Coating
No. of Workpieces: 50 holes Coating peels and burrs are formed
No. of Workpieces: 600 holes Able to continue
Tool: Diamond Coating SUMIDIA ® Drill ø6.35mm Part Material: CFRP Cutting Conditions: v c =430 SFM, f =0.003 IPR, H =.590", through hole, dry
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