Tungsten Carbide Supported Diamond Die Blanks used to wire drawing 

Descriptions of Tungsten Carbide Supported Diamond Die Blanks:

Tungsten carbide supported diamond die blanks is manufactured by means of cold pressing insertion. Polycrystalline diamond (PCD) core integrally bonded to a tungsten-carbide-supported ring which in turn enhances strength of die blanks. All blanks contain metal catalyst in PCD structure. These features give the products stronger ability to withstand wire drawing with high intensity.

Features of Tungsten Carbide Supported Diamond Die Blanks:

1. Special design of taper shape makes the tungsten carbide supported diamond die blanks easy to distinguish between the inlet and the outlet.
2. The alloy ring can protect the material to enable it to bear larger impact.
3. The large external diameter of the alloy ring can provide enough centripetal bearing force for diamond&enough resisting force against wire drawing.

The basic types

2, hard alloy die - drawn wire (steel wire) generally USES hard alloy moulds (Tungsten carbide nib), the typical structure of the mould for a cylindrical (or with a slight taper) of cemented carbide mold core closely embedded in a circular steel bushing (case), the mold core in the inner hole Bell mouth radius, (Bell), the inlet cone (Entrance angel), deformation (work) cone (approach Angle) and sizing of all (bearing) and outlet Angle (back relief).

Polycrystal molds - fine thread can be used to polycrystal molds (artificial diamonds), as well as drawing molds using natural diamonds.

Specifications of Tungsten Carbide Supported Diamond Die Blanks:

ADDMA code

Product code

Total blank diameter (mm)

Diamond diameter (mm)

Diamond thickness (mm)

Maximum recommended hole size (mm)

Grain sizes available (um)

D12

T4015

5,10,15,25,50

D15

T4023

5,10,15,25,50

D18

T4029

5,10,15,25,50

D21

T7040

5,10,15,25,50

D24

T7053

5,10,15,25,50

D27

T13086

10,15,25,50

D30

T130116

10,15,25,50

D31

T150120

25,50

D33

T150150

25,50

ADDMA NO.

Dimensions

Concentricity(mm)

Maximum hole size

Available grain size (μ)

Shape

d

D

t

Self-supported die blanks

D6

–

–

3,5,10,25

Round, Hexgan

D12

–

–

3,5,10,25

D15

–

–

3,5,10,25

D18

–

–

3,5,10,25

Tungsten carbide supported die blanks

D12

3,5,10,25,50

D15

3,5,10,25,50

D18

3,5,10,25,50

D21

3,5,10,25,50

D24

3,5,10,25,50

D27

10,25,50

D27

10,25,50

D30

10,25,50

D33

25,50

D36

25,50

Effect of different materials on life of drawing die

Carbide for drawing die is carbide - cobalt alloy with low co content. It has good abrasion resistance, impact resistance, polishing and corrosion resistance. It is easy to repair and cheap.The research shows that by improving the composition and structure of cemented carbide, controlling the fluctuation value of carbon content and refining the carbide particles, the properties of the material can be improved and the service life can be extended.At home and abroad, hot isostatic pressure (HIP) treatment, ultra-fine grain technology and addition of rare earth elements are adopted to reduce porosity, refine grain, improve alloy hardness and reduce friction coefficient.The diamond film or titanium nitride coating is formed on the surface of cemented carbide by chemical vapor deposition (CVD) and physical gas deposition (PVD) to improve the surface strength of the alloy.

Natural diamond, commonly known as diamond, is the hardest material in nature, with high abrasion resistance and heat conductivity. It can improve the surface quality of the silk material, improve the properties and size accuracy of the silk material when used for stretching tungsten and molybdenum filaments.However, it is very brittle, poor impact resistance, and hardness of anisotropic, easy to do drawing die wear.In addition, diamond is scarce, expensive and difficult to process, so it is limited in stretching and thick silk.

Synthetic diamond, also known as polycrystalline diamond, is a polycrystal formed by the non-directional polymerization of many single crystal particles. It has high strength and hardness, strong impact resistance, uniform properties and good comprehensive performance.In drawing and filament, the service life is higher than that of diamond die and cemented carbide die.However, the grains of artificial polycrystalline diamond are larger and difficult to polish. The surface finish of stretched filament is not as good as that of natural diamond.By refining the grain, the polishing performance can be improved, and the natural diamond can be replaced on the drawing die of medium and fine wires, which greatly reduces the cost and improves the product quality.

Note:

1. ℃
3. 4. Maximum recommended die size for soft nonferrous wire. Hard wire diameter normally should not exceed 65% of this diameter.

Why choose our product

More SuperHard Products Co., Ltd is dedicated to finding solutions that help our clients in all markets succeed. More SuperHard has been manufacturing high-quality, competitively priced superabrasivediamond and cbn tools that are designed to perform in a wide range of industrial ,such as pcd tools grinding, natural diamond polishing, auto parts processing , thermal spray coated industry, optical glass, semicon and led industry, woodworking tool , cnc tool grinding and roll machining ,others ultral precision industry.

The company production and sales of products covered vitrified bond tools, resin bond tools, metal bond tools, electroplated diamond/cbn tools, vaccum brazed products, cvd diamond tools, polycrystalline diamond (pcd) tools, cubic boron nitride (cbn) tools.our objective is to meet all the customers’ needs and help every customer achieve maximum benefits. more brings in revenue for you, you win, we win!

More SuperHard supplies the wheels for several application mainly:

1. Carbide round tools on cnc machines : flute grinding, gash grinding, end facing, clearance angle and cylindrical grinding .
2. Insert grinding for machines such as: agathon, wendt, haas, waida and ewag.
3. Woodworking saw blade and tools .
4. Hss tools
5. Cutting wheels

Products Range:

1. 2. PCD milling tools, PCD turning tools, PCD drilling tools, PCD engraving tools, PCD/pcbn inserts, PCD/pcbn cutting tools, PCD/pcbn grooving tools, CBN inserts3. PCD/TSP diamond, CVD diamond tools, large size synthetic diamond, Natural diamond tools, diamond abrasive tools4. diamond grinding&cutting discs, diamond cutting blade, diamond cup wheel, diamond dressers5. Roller cutting tools, PDC cutters, PDC drill bits& PDC core bits6. PCD tool grinder & PCD grinding machine

If you have any questions, please contact us

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To meet your requirements in every way, we need the following information

----- Shape and Dimension of the wheels

----- Grit size (Mesh, refer to Table#1)

----- Concentration

----- Bond(Resinoid, Vitrified, Metallic, Electroplated)

----- Quantity

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