Tungsten Carbide Supported Diamond Die Blanks used to wire drawing  Alisa@moresuperhard.com

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

1. The steel mold is sufficient for soft metal (such as gold and silver). The steel mold can have multiple holes of different sizes.

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).

3. Steel wire molds -- non-ferrous metal wires, such as copper and aluminum, are mostly used with drawing molds similar to steel wire molds. There are some differences in the shape of internal holes.

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

Note:

1. Die blanks must be cased below 650℃

2. ADDMA: American Diamond Die Manufacturers Association.

3. D: Total Blank Diameter d: Diamond Diameter T: Diamond Thickness
4. Maximum recommended die size for soft nonferrous wire. Hard wire diameter normally should not exceed 65% of this diameter.