Каталог Sumitomo сверла и развертки - страница 28

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Drill Coating DEX Coating ■ General Features The next-generation drill coating utilises nano-coating technology to provide more than double the tool life of conventional coatings. ●Silicon and chrome improve wear, heat, and adhesion resistance. ●New super multi-layered structure offers significantly improved chip resistance (coating strength). ■ Characteristics ● Coating Design ● Characteristics of Films DEX Coating World's first combined super multi- Coating Hardness (GPa) 50 layered coating is made from alternate layers of super multilayered substrates. TiAlCr 40 TiSiN Super Multi-Layer Coating 30 TiAlN TiSi TiCN SEM Profile Super Multi-Layer Coating 20 TiN 〜〜 ■ DEX Coat Application Examples Poor ← Chipping Resistance → Good ● MultiDrill GS Type Drilling Examples Comparison of Wear Resistance Comparison of Adhesion Resistance Edge Wear Comparison for 70m Drilling Edge Wear Comparison for 100m Drilling Shoulder and rake face feature improved wear Offers significantly improved fracture resistance to counter problems resistance enabling long tool life. caused by shoulder and flute adhesion in soft steel drilling. DEX Coating DEX Coating MultiDrill GS Type MultiDrill GS Type Comp. A Comp. B Drill Drill J GS Type MultiDrill GS Type MultiDrill 穴 Drilling with DEX Coating with DEX Coating Able to continue Comp. A Drill Comp. B Drill Breakage あ 0 20 40 60 80 100 120（m） 0 20 40 60 80 100 120 140 160 180（m） け Drilling Length Drilling Length Tool: MDW0800GS4 Tool: MDW0600GS4 Solid Work Material: S50C（200HB） Work Material: SCM415（120HB） Cutting Conditions: vc=70m/min f=0.25mm/rev H=32mm Cutting Conditions: vc=60m/min f=0.18mm/rev H=18mm Special External Coolant (Water Soluble) External Coolant (Water Soluble) Indexable ● Long MultiDrill XHT Type Drilling Examples ● SEC MultiDrill SMD Type Drilling Examples Reamer Reduced margin wear during deep hole MQL drilling increases number of regrinds. Offers longer tool life with SEC MultiDrills. Brazed Pcs. Others Number of Parts 1,400 1.4x tool life! DEX Coating 1,200 1,150 1,000 800 800 600 400 200 0 Conventional Coating DEX Coating Conventional Coating     Tool: MDW0497XHT20 (ø4.97 L/D=20)   Tool: SMDH210M (ø21.0)   Work Material: SCM440 Equivalent Material (275HB) Crank Shaft   Work Material: SMnB (350HB) Construction Machine Component   Cutting Conditions: vc=70m/min f=0.23mm/rev H=75mm   Cutting Conditions: vc=65m/min f=0.25mm/rev H=25mm MQL Internal Coolant (Water Soluble) J6