Общий каталог Sumitomo 2018 - 2019 - страница 495

Nano-Polycrostalline Diamond

- General Features

Nano-polycristalline diamond is a type of polycristalline

diamond, produced by directly binding nano-level dia-

mond grains without using any binders.

This material is unique to our company and as compa-

red 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-polycris-

talline diamond.

- Micro-Structure Comparison Nano-Polycristalline Diamond Conventional PCD SEM Structure SEM Structure

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

SUMIDIA Binderless

- Application Examples

• Ballnose Endmill / Radius Endmill (Carbide Machining)

Hardness

Nano-Polycristalline No anisotropy and high hardness Diamond Single Cristal Diamond Hardness depands on crystal orientation

Conventional PCD Load 4,9N

0 50 100 150

Knoop Hardness (GPa)

• Indexable Inserts (Carbide Machining)