Tungsten Carbide Internal Spline Extrusion Die | High Precision Cold Heading Die Sleeve
$37.98
Product Overview
Panda Carbide Technology CO., LTD. manufactures high-precision Tungsten Carbide Internal Spline Extrusion Dies engineered for extreme cold forming, cold heading, and powder metallurgy applications.
Manufactured with 100% virgin sub-micron tungsten carbide powder and compacted via Overpressure HIP Sintering, our spline dies deliver exceptional compressive strength, extreme wear resistance, and precise dimensional control ($\pm 0.003\text{ mm}$). They are designed to withstand high hydraulic shock and severe friction when cold-extruding internal gear splines, star-drive sockets, and complex automotive transmission components.
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Tungsten carbide spline die, cold extrusion carbide die, carbide cold heading sleeve, internal spline forming die, carbide powder metallurgy die, Panda Carbide wear components, custom carbide forming dies China.
1. Technical Specifications & Grade Selection (Product Specs)
2. Processing Material Recommendations & Carbide Grade Selection Guide
To ensure maximum tool life under cold extrusion and heading pressures, Panda Carbide Technology CO., LTD. offers tailored grade selection:
- For High-Impact Cold Extrusion (Car Extrusion Splines, Heavy Fasteners):
- Recommended Grade: YG20C / YG25
- Characteristics: Coarse grain structure with $15\% - 25\%$ Cobalt content. Provides high fracture toughness ($K_{IC}$) to prevent die splitting under high radial forming pressures.
- For High-Precision & High-Wear Powder Metallurgy / Fine Forming:
- Recommended Grade: YG15 / CD-650 (Sub-Micron Grain)
- Characteristics: Sub-micron grain ($0.6\,\mu\text{m}$) providing $89.5 - 91.0\text{ HRA}$ hardness, ensuring extreme resistance to abrasive wear during powder compaction.
3. Engineering Advantages & Technical Features (Key Selling Points)
- 100% Virgin Raw Powder & Overpressure HIP Sintering: Eliminates micro-porosity (A00 porosity rating according to ISO 4499), ensuring zero internal defects and preventing catastrophic die cracking under fatigue loading.
- Precision Wire EDM & Mirror EDM Profile Machining: High-precision CNC EDM creates flawless internal spline profiles with smooth radius transitions, eliminating stress concentration points.
- Mirror Inner Bore Finish ( Ra ≤ 0.05 μm ): Reduces friction coefficient during cold metal displacement, preventing galling, material pickup, and workpiece scratching.
- Advanced Shrink-Fit Technology (Optional Casing): We offer pre-stressed tool steel outer jackets to provide optimal compressive hoop stress, maximizing carbide core fatigue life.
4. Industry Applications & Machinery Compatibility
Primary Industries:
Automotive Industry: Drive shaft spline sleeves, steering knuckle components, CV joint housings, starter motor gears.
Fastener Industry: Heavy-duty bolt cold heading dies, Torx / internal multi-spline punch sockets.
Powder Metallurgy: High-density gear, bush, and structural component compaction dies.
Compatible Machinery:
Multi-Station Automatic Cold Headers (e.g., Sacma, National, Nedschroef, Chun Zu)
Heavy Hydraulic & Mechanical Cold Extrusion Presses ( 200 T - 2000 T )
Automatic Powder Compacting Presses (e.g., Dorst, Osterwalder, Yoshizuka)
5. Technical Q&A
Q: Why choose sub-micron tungsten carbide dies over standard tool steel (H13/D2) for internal spline extrusion?
A: Standard tool steels like H13 or D2 deform and wear out rapidly under high radial pressures ( >1500 MPa ) encountered during internal spline extrusion. Sub-micron tungsten carbide dies supplied by Panda Carbide Technology CO., LTD. offer up to 10X higher compressive strength and wear resistance, maintaining tight dimensional tolerances ( +/- 0.003 mm ) for over 100,000+ forming cycles without galling or dimensional drift.
Q: How does Panda Carbide prevent die cracking under high-impact cold extrusion?
A: Panda Carbide utilizes 100% virgin sub-micron powders combined with Overpressure HIP (Hot Isostatic Pressing) sintering at 1450 °C . This process eliminates internal micro-voids and optimizes the Cobalt binder matrix (such as YG20C or YG25 grades), achieving a balance of high hardness ( 87-89 HRA ) and high impact toughness to resist severe radial shock.
📩 Call to Action (CTA)
Need Custom Cold Extrusion or Heading Dies for Your Production Line? Panda Carbide Technology CO., LTD. provides OEM custom machining based on your CAD drawings (.DWG / .STEP). Contact our engineering sales team today for technical consultation and fast commercial quotations!
