What kinds of diamond tools

Types of diamond tools
1, natural diamond;
2, synthetic polycrystalline diamond Artificial Polvcrystalline Diamond (PCD);
3, artificial Polycrystalline Diamond Compact Polycrystalline Diamond Compact (PDC); chemical vapor deposition of diamond coated tools Chemical Vapor Deposition

Diamond Coated Tools (CVD).
4, the deposition substrate thickness of 100μm non-pure Diamond blade thick Thick Diamond Film (CD);
5, the tool directly deposited on the substrate surface of the diamond film thickness of less than 30μm coating Coated Thin Diamond Film (CD).
Natural diamond (ND) Tool
As a natural diamond pull vine peak spectrum, has the following characteristics:
(A) is displayed at the 1332 Rush existence diamond.
(2) wave amplitude (FWHM) of 4.1cm-1
Displayed as pure diamond. ND is the hardest known mineral substances, mainly for the preparation of turning tools. Fine grinding of natural diamond tool edge radius

of up to 0.01 ~ 0.002μm. Where natural single crystal diamond (Single Crystalline Diamond,

SCD) cutting edge parts by high magnification 1500x still observed blade smooth. Ra SCD when turning aluminum pistons reach 4μm, and in the same conditions using PCD

cutting tool machining time of the surface roughness Ra of 15 ~ 50μm. So the use of SCD tool with fine

Password lathe precision and ultra-precision machining, get the mirror surface.
Polycrystalline diamond (PCD) cutting tools
PCD is a high temperature high pressure conditions by cobalt and other metal-bonded to synthetic diamond powder sintered polycrystalline material gathered, also known

as sintered diamond. Overall sintered polycrystalline diamond cutter cutter for milling, PCD grain was disordered arrangement state, subordinate to the

Gay, uniform hardness, graphitization temperature is 550 ℃. Tool has high hardness, high thermal conductivity, low thermal expansion coefficient, high elastic modulus

and a low coefficient of friction. They are very sharp and so on.
Synthetic polycrystalline diamond compact (PDC) cutter
In order to improve the toughness of PCD inserts and weldability, often made of PCD and carbide cutter body synthetic polycrystalline diamond composite blade (PDc).

The surface of the cemented carbide substrate being suppressed 0.5 ~ 1mm thick layer of sintered PCD. The flexural strength of the composite blade with carbide

Consistent hardness close to PCD, PCD can replace the use. PCD and synthetic polycrystalline diamond compact (PDC) cutter sharp edge and workpiece surface quality than

ND. While its workability is poor, the grinding ratio is small, it is difficult based on geometric head

Like arbitrary shape. Current use of synthetic polycrystalline diamond compact Preparation Tool only, still can not be manufactured with chipbreaker indexable inserts

and complex three-dimensional surface geometry cutter.
CVD diamond films (TDF) Soldering Tool
Thick welded diamond cutting tool is good to laser welded to a CVD diamond thick film substrate (usually a class K carbide) to form a composite sheet, and then

polishing composite sheet, the second welded to the tool body, sharpening as needed the shape and edge. Of CVD diamond films

(Diamond film thickness of 30μm), with high hardness, wear resistance, low coefficient of friction, etc., is to create cutting non-ferrous metals and non-metallic

materials, the ideal material for cutting tools. Because diamond welding process complex process, CVD diamond films (TDF) has not been large welding tool

Volume applications.
Diamond coated tools
Diamond coated tools are directly in the cemented carbide by a CVD method (K class carbide) or ceramic layer deposited on the substrate 1 ~ 25μm diamond films, no

cleavage plane isotropic. . Film coated tool hardness of 9800 ~ 10000HV. High thermal conductivity, thermal conductivity at room temperature

Number up to 2000W · m-1 · K-1, while the carbide thermal conductivity is only 80 ~ 100m-1 · K-1. Diamond CVD method may be coated to any complex shape of the tool,

which is polycrystalline diamond can have the most significant advantages.
Cubic boron nitride (PCBN) cutting tools
Cubic boron nitride (PCBN) following the synthetic diamond hard appears after the second inorganic material, the hardness slightly inferior to diamond, thermal

stability, good heat resistance up to 1400 to 1500 degrees, the heat resistance than diamond Xing (700-800 degrees) is almost twice as high. cubic boron nitride

(PCBN) cutting tools is mainly suitable for processing a variety of ferrous metals and their alloys; most suitable for a variety of hardened steel (carbon tool steel,

bearing steel, tool steel, high speed steel) pearlitic gray cast iron (vanadium-titanium iron) chilled cast iron heat alloys (nickel base alloy cobalt-based alloys)

and surface coating

Surfacing processing. Has a long life, reduced number of tool changes, compensation down the time spent for NC machine tools and automated production line efficiency

can be more fully exploited, can change the traditional mechanical processing methods (ie, before quenching with a tool roughing and sand after quenching

Round finishing method), which can be in a CNC machine before quenching after quenching turning (turning instead of grinding), with good economic benefits.