Hot Heading Dies are essential tools used in the hot forming and forging process of high-strength fasteners such as bolts, screws, and rivets. These dies are designed to withstand extreme temperatures and high pressure while ensuring consistent dimensional accuracy and superior surface finish.
As a professional hot heading die manufacturer, we specialize in producing precision hot heading dies, custom hot forging dies, and hot header dies for various industrial applications. All products are engineered with advanced materials, CNC precision machining, and strict heat-treatment procedures to guarantee excellent durability, wear resistance, and production efficiency.
Key Features
High Precision Machining: Each hot heading die and hot forging die is CNC-machined to tight tolerances, ensuring precise forming of fastener heads and threads.
Superior Material Strength: Manufactured from premium tool steels and Tungsten Carbide to deliver excellent toughness and thermal stability.
Extended Die Life: Advanced heat-treatment and surface finishing techniques improve fatigue resistance and reduce downtime.
Custom Design Capability: Tailor-made hot heading die sets and hot heading tooling according to customer blueprints or fastener specifications.
Wide Application Range: Suitable for automotive, aerospace, construction, industrial machinery, and power equipment industries.
Manufacturing Process
Our hot heading die manufacturing process integrates advanced production technology and precision engineering:
Material Selection & Pre-Machining: High-grade H13, SKD61, or Tungsten Carbide materials are selected for optimal hot-work performance.
CNC Turning & Milling: Precision CNC machining, turning, and EDM cutting guarantee accurate cavity geometry and smooth die surfaces.
Heat Treatment: Controlled heat-treating enhances hardness, wear resistance, and dimensional stability.
Grinding & Polishing: Fine grinding and mirror polishing ensure the die’s internal surface finish meets forging standards.
Inspection & Assembly: Each hot heading die set undergoes strict dimensional inspection before packaging and shipment.
Material Selection
We provide a wide range of materials to meet different application requirements:
Tool Steel (H13 / SKD61): Excellent thermal shock resistance and toughness.
Tungsten Carbide: Outstanding hardness and wear resistance, ideal for long-life hot forging dies.
High-Speed Steel (M2 / M42): Superior cutting and forming capability at elevated temperatures.
Alloy Steel: Balanced performance for cost-effective applications.
Surface Treatment Options
To enhance performance and extend die service life, we offer various finishing treatments:
Polishing / Mirror Finish – improves surface flow and reduces adhesion.
Nitriding / Carburizing – increases surface hardness and wear resistance.
PVD / TiN / TiCN Coating – enhances heat resistance and anti-friction properties.
Oxidation Treatment – provides anti-corrosion protection in hot environments.
Precision & Quality Control
Every hot forming die and hot heading tooling is inspected using high-accuracy instruments:
Coordinate Measuring Machine (CMM) for dimensional verification.
Hardness Tester for surface hardness inspection.
Roughness Tester to ensure optimal surface finish.
Metallurgical Analysis to verify internal structure and grain integrity.
Typical tolerances: ±0.005 mm; Surface roughness: Ra ≤ 0.4 µm.
Applications
Our precision hot heading dies and custom hot forging dies are widely used in:
Automotive Fasteners – bolts, nuts, and engine components.
Aerospace Components – high-temperature alloy bolts and rivets.
Industrial Machinery – shafts, couplings, and heavy-duty connectors.
Construction Fasteners – structural bolts, anchors, and rebar couplers.
Marine & Energy Equipment – corrosion-resistant fastener systems.
FAQ
Q1: Can you produce custom hot heading dies based on our drawings?
Yes. We offer complete customization services for hot header dies and hot forging dies, including design optimization, prototype testing, and mass production.
Q2: What materials do you recommend for high-temperature applications?
H13 tool steel and tungsten carbide are the most commonly used due to their outstanding thermal stability and strength.
Q3: How long is your production lead time?
Generally, standard hot heading die sets take 10–20 working days. Custom designs may vary depending on complexity.
Q4: Do you provide heat-treatment and coating services in-house?
Yes. Our factory is equipped with vacuum heat-treatment furnaces and PVD coating machines for complete process control.
Q5: What is your die lifetime compared to conventional suppliers?
Our precision hot heading dies typically last 20–30% longer due to superior materials, optimized structure, and precise machining accuracy.
