Diamond Tools

Description

Diamond tools's introduction, advantage, application, photo, classification, history, present condition and new technology are presented on this page.

Diamond tools refers to shaped products made of diamond sand and bonding material with certain performance and purpose, usually it is used in cutting polishing and grinding. It is called '金刚石工具' in Chinese, 'Outils diamantés' in French, 'Diamantwerkzeuge' in Germany, and 'Utensili diamantati' in Italy.

Being an emerging industry, Diamond Tools have been used in automobiles, construction, wood, building materials, petroleum, geology, metallurgy, machinery, electronics, ceramics, , etc. And there is great space for the development, which means more traditional tools will be replaced by Diamond Tools.

Europe, United States, China and South Korea are the production base of Diamond tool. Europe and United States only provide small amount of high-end production capacity. Diamond tool from China is welcomed because of the cost-effective and nice quality.

Compared with tools made with corundum or silicon carbide, diamond tools have many advantages.
- Harder: Diamond is a super-hard material, which make the tool include Diamond grains more hard.
- Higher efficiency: The higher hard level makes the cutting job more easy and fast than before.
- More durable: The super-hard Diamond grain makes the Diamond Tool work more longer time than normal cutting or grinding tool; ten thousand times than silicon carbide.

cutting material:
1. cut building material: Building structure cutting: concrete, asphalt, cutting bricks.
2. cut stone: granite, marble, sandstone, slate.
3. cut decorative material : tiles, glass

cutting machine :
1. marble machine, angle grinder (small pieces)
2. road cutting machines.
3. table saws.
4. stone cutting machines
5. hand-held saws
6. wall saws
7. For high-power plane saws (mainly refers to plane concrete cutting such as airports). High power, extremely high cutting speed and deep cutting.

Classification by Diamond material:
Single crystal diamond (both natural and artificial), synthetic polycrystalline diamond (PCD), synthetic polycrystalline diamond and cemented carbide composite blades (PCD/CC), and CVD diamond

Classification by Bonding Material:
According to the bonding material, there are three categories: Resin, Metal and Ceramic Bond Diamond Tools.
The using method or technology of bonding material covers: Sintering, Electroplating and Brazing.

Classification based on usage:
- Cutting tool - Turning tools, boring tools, milling cutters, mainly used for metal parts in automobiles, airplanes, precision machinery, and non-metallic materials.
- Sawing Diamond Tools - circular saw blades, band saws, chain saws, wire saws, tube saws, wire saws, gang saws, etc;
- Abrasive Diamond Tools - Diamond grinding wheels, rollers, edging wheels, Diamond grinding discs, bowl grinding, drums, soft grinding discs, abrasive paste etc.
- Drilling Diamond Tools - stone drill bits, glass drill bits, engineering thin-wall drill bits, geometallurgical drill bits, oil (gas) well drill bits, etc.
- Dressing tool 　- shaping dressing roller, correction pen, dressing block, etc.
- Wire drawing mould -　Diamond polycrystal is made into wire drawing mould to draw wires, filaments, screen wires and other metal filaments.
- Other tools - knives, trimming tools, etc.

Diamond tools market is roughly divided into the professional market and general market.
The general market only used the diamond tools in normal cutting, such as building material, stone, etc.
The professional market of diamond tools request the highest level in cutting efficiency, cutting life, and processing accuracy.
The different level performance leads to huge difference in price.

Modern diamond tools can be traced back about 150 years. The Swiss engineer J.R. Leschot of Geneva conceived the idea of making diamond drill bits in 1862.
In 1885, the first diamond circular saw blades was used for cutting stone in France .
A large diameter blade was first used in the Euville stone quarries at around 1898.
Synthetic diamond was successfully synthesized in the United States for the first time in 1955, laying the foundation for the manufacture and promotion of diamond tools.

In the 1960s, the diamond tool manufacturing industry got a rapid development in Europe and America.
In recent decades, China is accumulating technology and experience in manufacturing mid-to-high end Diamond Tools.
The advantage of cost-effective help Chinese Doamond Tools in the lead for both production and consumption.

In the new millennium, the technology and production of diamond tools continues to grow rapidly. And there is great space to replace traditional tools.

Diamond plating is to coat a layer of affinity metal (Ti, Cr, W, Mo, etc.) on the surface of diamond.
The plating layer forms a chemical bond with the diamond, and forms a brazed bond with the surrounding carcass to improve the holding power of the diamond tool.

Compared with unplated diamond saw blades, the sawing efficiency is increased by 50%. And it can resist the oxidation and graphitization of diamond, which improves the life of diamond tools.

Most diamond grains was fixed on the diamond tool by bonding material.
Based on the extremely hardness of diamond, Diamond Tools was formed by high temperature and high pressure, and it is used sandpaper, drilling, and grinding tools, and can be used to cut and depict other materials.