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Polycrystalline Diamond

Polycrystalline Diamond (PCD) is a composite material consisting of diamond and cemented carbide, which is usually produced by assembling diamond powder with cemented carbide matrix by adding a certain amount of bonding agent and then sintering under ultra-high-temperature and high-pressure conditions.

    Performance characteristics of PCD

    (1) High hardness and wear resistance
    PCD has high hardness, high compressive strength, good thermal conductivity and wear resistance, can be in the high-speed cutting to obtain high machining accuracy and machining efficiency. such characteristics of PCD tools is determined by the diamond crystal state, the structure has a strong binding force and directionality, so that the diamond has a very high hardness.

    (2)High machining accuracy
    PCD tools have low coefficient of thermal expansion and high modulus of elasticity, thus the tools are not easy to be deformed during the cutting process, and at the same time, the cutting force and cutting temperature can be reduced to improve the tool durability and cutting rate, so as to obtain good machining surface.

    (3) High thermal conductivity
    The thermal conductivity of PCD is very high, better than silver, copper, and much higher than general cemented carbide, so it is easy to dissipate heat in the cutting process, and the cutting temperature is lower.

    product description

    (1) PCD in the automotive and aerospace applications
    PCD tools in the automotive field are mainly used for processing the skirt of the engine piston, pin hole, cylinder block, gearbox and so on. Due to the high silicon content of these parts (more than 10%), the service life of the tool requirements, and PCD tool durability is 1-50 times the carbide tool, can ensure the stability of the size of the parts, and can greatly improve the cutting speed, machining efficiency and surface quality of the workpiece.
    In the aerospace field, the use of PCD tools processing aluminum alloy (AlSi2) cylinder head, cutting rate is higher, and tool life than cemented carbide to improve about 20 times, the surface quality of the workpiece is also greatly improved.

    (2) PCD in the wood processing industry applications
    Wood processing is also an important area of PCD tool applications. With the rapid development of synthetic panels (medium density fiberboard, particleboard and laminate flooring, etc.), accelerating the demand for super-hard cutting tools, so that PCD tools gradually replace the traditional woodworking tools in the market.
    The outermost layer of Al2O3 of laminate flooring is very abrasive to the carbide tool, and the use of PCD tools can effectively solve this problem. Therefore, PCD in the woodworking industry's main market is reinforced composite flooring and high hardness fiberboard processing.  

    (3) PCD in the electronic processing industry applications
    The electronics industry in the production of electrical printed circuit boards more and more demanding, the general tool in use will have a burr, affecting the installation and positioning of electrical components, and the whole printed circuit board is not beautiful; carbide cutting tools in the processing, short life, slow processing speed, low efficiency, poor machining accuracy. The use of PCD tools, high processing efficiency, low processing costs, more widely used.

    (4) PCD in the glass cutting and processing industry applications
    Cutter wheel made of PCD is mainly used for high-precision, high-quality cutting of LCD screens of electronic products, and at the same time can cut glass for construction and automobile. The mandrel and cutter wheel are made of PCD material, which has the advantages of high processing precision, wear resistance, good consistency, and high service life at the same time, making it an ideal substitute for ordinary glass knives and carbide glass cutter wheels.

    (5) PCD in the composite materials industry applications
    Using PCD tools to process glass fiber reinforced composites, its tool life is about 60 times that of cemented carbide tools, the single piece processing cost is 1/20 of cemented carbide tools, and the processing accuracy is higher than that of cemented carbide.
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    • PCD11s6n
    • PCD12hb4
    • PCD138yr
    • PCD249kh

    PCD

    • product description01zwi
    • LTM2200

      Grain size

      Wear resistance

      Electric Conductivity

      Grindability

      1μm

       IIIIII

      IIIIIIIII

      IIIIIIIII

      Characteristics:
      1. 1um average grain size.
      2. LTM2200'S ultra-fine grain structure is suitable for applications where mirror finishes are required due to its extreme edge sharpness.
      Applications: Ideal for milling and cutting aluminium silicon alloys where extreme chip resistance is required, also for machining titanium and composites.
    • product description02dx9
    • LTM004

      Grain size

      Wear resistance

      Electric Conductivity

      Grindability

      4μm

       IIIIIIII

       IIIIIII

      IIIIIII

      Characteristics;
      1. 4um average grain size.
      2. LTM004'S 4-micron fine grain structure offers the addtion to delivering the optimum balance between tool performance and resistance to abrasions and chips.
      Applications: Ideal for cutting of aluminium alloys where high surface finish is required alongside higher wear resistance.
    • product description03n0x
    • LTM10

      Grain size

      Wear resistance

      Electric Conductivity

      Grindability

      10μm

      IIIIIIII

      IIIIIII

      IIIIIIII

      Characteristics:
      1. 10μm average grain size.
      2. LTM10 is the workhorse PCD grade ideal for many applications where a good balance of toughness and wear resistance is required.
      Applications: The ideal grade where roughing and finishing are performed with a single tool. Highly recommended for low to medium content aluminium alloys.
    • product description045zo
    • LTM90

      Grain size

      Wear resistance

      Electric Conductivity

      Grindability

      2-30μm

      IIIIIIIIII

      IIIIII

      IIIIII

      Characteristics;
      1. A multi-model PCD with a combination of 2μm to 30μm grain sizes.
      2. It’s made of unique mixtures and special high temperature and high pressure synthesis technology.
      3. The product has very high wear resistance and heat resistance.
      Applications: Successful in machining of high silicon aluminium alloys, metal matrix composites, tungsten carbides.

    PCD standard product series

    PCD Composite Sheet Product Series with Cemented Carbide Layer

    Type

    Diamond (mm) Layer Thinckness

    Total Thickness (mm)

    0.5

    0.6

    0.8

    1.0

    1.6

    2.0

    3.2

    5.0

    8.0

    LTM2200

    0.3

     

     

    LTM2200

    0.5

     

     

     

     

    LTM004

    0.3

     

     

    LTM004

    0.5

     

     

     

     

    LTM10

    0.3

     

     

    LTM10

    0.5

     

     

     

    LTM90

    0.5

     

     

    Note:
    1. The composite sheet with total thickness of 0.5,0.6,and 0.8 does not provide the whole sheet, but can provide kinfe grain cutting or 1/4 sheet;
    2. The composite sheet with total thickness of 1.0, 1.2 and 1.4 does not provide the whole sheet, but can provide kinfe grain cutting or 1/2 sheet.
    The products with total thickness of 5.0 and 8.0 are customized products.
    Other sizes and styles can be customized according to customer's request

    PCD

    PCD cutting tool blanks
    • product-description1r9p
    • PCD cutting tool blanks be customized to meet our customers' special needs or requirements.
      PCD cutting tool blanks are mainly used for cutting and machining non-ferrous metals and alloys such as SI/Al alloys, aluminium, copper and similar alloys.
      They are also used to machine non-metallic materials such as wood, graphite, ceramics, plastic, rubber and so forth, where high abrasion resistance and long life are required.
    PCD cutting tool blanks
    • product-description23ks
    • product-description3jiz
    • product-description4qka
    • product-description59du
    ldeal for diamond saw blades, construction coring and drilling, diamond cutters for edge-trimming, PCD inserts for turning and milling, diamond drill bits for hole-drilling in composite materials and circuit boards, etc.

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