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MANUFACTURING PROCESSES

Hot Heading

Hot heading is a manufacturing process used to produce engineered fasteners and components, especially when working with materials that are hard to deform at room temperature.

The Hot Heading Process:

1. Material Heating:

  • The metal is heated to a temperature at which it becomes malleable, typically below its melting point.

  • Heating is performed using furnaces, induction heaters, or other methods, depending on the material type (e.g., titanium, nickel alloys).


2. Forming:

  • The heated material is placed into a die and deformed by applying force through a punch.

  • The heat allows the material to flow more easily, making it suitable for forming complex shapes or working with harder metals.


3. Multi-Stage Forming (Optional):

  • Similar to cold heading, multiple stages of deformation may be required for intricate geometries.


4. Post-Process Treatments:

  • The component may undergo further processes such as trimming, threading, heat treatment, or surface finishing to meet final specifications.

Advantages of Hot Heading:

Material Versatility: Enables forming of high-strength, low-ductility metals like titanium, nickel alloys, and certain stainless steels that are difficult to work with at room temperature.

Enhanced Shape Complexity: Allows for the production of parts with complex geometries that cannot be achieved through cold heading alone.

Improved Grain Structure: The process can refine the grain structure of the material, enhancing mechanical properties.


Applications in Engineered Fasteners:

Hot heading is often chosen for fasteners and components that require:


Extreme Strength and Durability: Used in aerospace, nuclear, and defense applications where high-performance materials are critical.

Corrosion Resistance: Suitable for marine and offshore environments where exposure to saltwater and harsh conditions is a concern.

High-Temperature Performance: Ideal for turbomachinery or automotive applications where fasteners must endure elevated temperatures.

Cold Heading

Hot Heading

EDM

Milling

Turning

Swiss Machining

Drilling

Laser Marking

Roll Threading

Cut Threading

Heat Treatment

  • Austenitizing

  • Tempering

  • Normalizing

  • Stress Relieving

Stamping

Grinding

Polishing

Broaching

MANUFACTURING

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