Каталог Sumitomo пластины с алмазными вставками Sumidia - страница 4

Nano-Polycrystalline Diamond

• General Features Nano-polycrystalline diamond is a type of polycrystalline diamond, produced by directly binding nano-level diamond grains without using any binders. This material is unique to our company, and as compared to conventional diamond grades containing binders, it exhibits higher strength, excellent wear resistance and fracture resistance. SUMIDIA Binderless is the series of tools with cutting edges made from this high performance nano-polycrystalline diamond.

• Micro-Structure Comparison
• Hardness

Nano-polycrystalline diamond Conventional PCD SEM structure SEM structure Nano-polycrystalline No anisotropy and high hardness Binder（Co） diamond

Single crystal diamond Hardness depends on crystal orientation

100nm 5μｍ

Diamond particle average grain Diamond particle average grain diameter (30–50 nm) diameter (1–10 µm)

SUMIDIA Binderless

• Application Examples
• Ballnose Endmill / Radius Endmill (Carbide Machining) M43

Conventional PCD Load 4.9 N

0 50 100 150

Knoop hardness Hk (GPa)

• Indexable Inserts (Carbide Machining) M26

MM

• Drills (Ceramics Drilling)
• Cutting Tool (Ultra-precision Cutting of Carbide)

SUMIDIA SUMIDIA Binderless

SUMICRYSTAL