can be calculated by the finite element method of stress magnitude different speeds to simulate the failure process and improve the design.
2013年7月31日星期三
Polycrystalline diamond
Polycrystalline diamond Introduction
Polycrystalline diamond (powder) is using a unique method of directional blasting obtained from graphite, high-explosive shock wave velocity explosive blasting the
metal slapper accelerated flight, impact resulting graphite graphite sheet into polycrystalline diamond . The structure is very similar to the natural, unsaturated bond
by combination with good toughness.
Polycrystalline diamond Applications
Advantages of polycrystalline diamond
Excellent grinding performance: High removal rate and toughness, self-sharpening;
Compared with the single crystal diamond, it is not prone to scratch the surface;
More suitable for grinding surfaces of different hardness of the material of the workpiece.
Applications
As a precision abrasive grinding , for sapphire, head, disk, hard glass and crystal, ceramic and carbide ultra-precision grinding and polishing, such as for LED sapphire
thinning.
As a coating additive for metal molds, tools, parts, etc. coating, can greatly improve the surface abrasion resistance, surface hardness, long life.
Mainly used for grinding, polishing fluid preparation generally used.
May also be made knives, cutting is not prone to cracking.
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