A Quick Comparison between CVD & PCD Diamond Tools



When it comes to material machining, cutting or tooling, nothing is more challenging and harder than tooling diamond. Under the accurate machining circumstances and in various nonferrous applications, diamond easily outlasts ceramic, tungsten carbide, high-speed steel, and polycrystalline cubic boron nitride. As we all know, this specific does have downsides shortcomings, for example, it is unable to machine ferrous substances, but when the application entails high volumes, super-speeds, or resources like graphite or aluminium; a diamond can be an idea and most effective device to bring into play.
Whenever, an application necessitates tooling, users or machinists usually get two options:
1.      Poly-Crystalline Diamond (PCD)
2.      Chemical Vapour Deposited (CVD) Diamond

While PCD tools like PCDBoringbare and PCD End Mill are veteran players in this field; CVD tools are relatively new for this application. However, both devices have their own set of advantages and drawbacks and are called for various applications, under different circumstances.
       PCD: A Verified Performer
PCD devices offer the strength, inflexibility, and strong abrasion confrontation features to the natural diamond without representing its vulnerability to fracturing to the application. Basically, these tools are designed manufactured with the help of man-made diamond elements which are brought up together in a high temperature and high-pressure process. During this process, the particles are integrally linked to a lined tungsten carbide intrinsic for the confrontation of motorized strength and crash.
       PCD Applications
PCD is compatible with high-speed machining and cutting of aluminium, especially when finely polished surface finishes are compulsory. Alongside this, during the machining of the highly sharp workpiece, PCB tools like PCD Boringbare and PCD End Mill are also required.
Generally, PCD is suggested for machining and cutting strong and high-content materials and silicon aluminium alloys. Apart from this, it is also used for machining and cutting other strong materials like brass, carbide, copper, and bronze in various applications including turning, milling, profiling, boring, grooving, and Holemaking.
       CVD Tools: The Neophyte /
Chemical Vapour Deposited or CVD diamond tool is an extremely strong, abrasion-resistive, and pure diamond material device which requires no binder to be used. As an alternative, diamond is put down in any of two forms i.e. thick-film diamond or thin-film diamond. CVD Thick Film Diamond is laid down as a rock-solid, free-standing wafer and eventually machined to required size while the thin-film diamond is encrusted onto carbide CVD Insert and gyratory instruments.
       CVD Applications
The most promising application of CVD instruments like CVD Insert with Chip Breaker, CVD End Mill, CVD Thick Film Diamond, and CVD Boringbare has been machining of graphite. But currently, there is a rise in CVD tooling for various other machining applications for the nonferrous materials like plastic, metal, and composite usage. In simple terms, the newcomer CVD is well-suited to almost all kind of nonferrous metals and can deliver flawless finishing and outcomes regarding the intervallic cuts of super-strong materials like high silicon aluminium, copper, brass, carbides, and carbon fibre materials.

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