Customized Tungsten Carbide Cold Heading Dies for Screw Bolt
Extrusion Manufacturing
Descriptions:
The Carbide Cold Heading Dies are with plain hole, pointing,
extrusion, trap extrusion, Hexagonal, Hex extrusion, flat
extrusion, trilobular for different fasteners, screws and bolts
manufacturing. Fasteners can be of mild steel, stainless steel,
high tensile fasteners of alloy steels. The carbide dies can be
used for full thread, half thread bolts/screws. They can be socket
head, hex head, counter sunk head, carriage bolt, roof bolt, coach
screws, trilobular screws or other special screws / bolts.
The material used in dies is Hot Die Steel ( HDS ) of grade H11 and
H13 for outer casing and the insert is of Tungsten Carbide.
Depending on the application, different grades of Tungsten Carbide
are used such as GT55, GT40, GT30, GT20, G50, G40, G30, G20 etc.
consisting of 25% or 20% or 15% or 12% Cobalt.
Carbide Cold Heading Dies are made to close tolerances as per
customer drawings to give longer life.
Specifications:
| TYPE | OD
(mm) | ID
(mm) | H
(mm) |
| 1 | 12 | 4 | ＜16 |
| 2 | 15 | 4 | ＜31 |
| 3 | 20 | 5 | ＜41 |
| 4 | 25 | 8 | ＜36 |
| 5 | 30 | 14 | ＜41 |
| 6 | 35 | 5 | ＜32 |
| 7 | 42 | 30 | ＜36 |
| 8 | 45 | 17 | ＜70 |
| 9 | 50 | 18 | ＜60 |
| …… | …… | …… | ……
|
Note: Customized dimensions also accepted, welcome your contact!
Grades for Extrusion Tunsten Carbide Cold Heading Dies
| GRADE | DENSITY (g/cm3) | TRS (N/mm2) | HARDNESS (HRA) | Application recommended |
|
| YG15 | 14 | 2800 | 87.5 | For fabricating drawing dies of steel tubes and rods under High
compressibility ratio; punching,stamping,forging tools under large
stress. |
| YG20 | 13.5 | 3200 | 85.5 | For fabricating of stamping dies for watch parts, spring plates of
musical instruments, battery jars, small sized steel balls, screws,
screw caps. |
| YG20C | 13.5 | 3300 | 83.5 | Dies for wear resistant or impact resistant application. |
| YG22C | 13.3 | 3500 | 83 | Nut forming dies and high impact resistance forging dies |
| YG25C | 13.1 | 3600 | 82.5 | Stainless bolt header dies and rollers. |
Advantages:
We can produce many dimensions of tungsten carbide cold heading
dies / punch dies / forging dies / tungsten carbide moulds /
drawing dies / threading dies
1: We have various different moulds for different dimensions of
tungsten carbide cold forging heading dies/ carbide punch dies.
2: We can supply the cold forging dies according to the drawing
provided by customers.
