Induction Bending – Technical Explanation:

Induction bending is a precise and efficient method for bending pipes, tubes, or profiles using localized heating by electromagnetic induction.

How It Works:

1. Induction Coil Placement:
   A high-frequency induction coil is placed around the section of the pipe where the bend is required.
2. Localized Heating:
   The coil generates an alternating magnetic field that induces eddy currents in the metal, causing it to heat up rapidly—usually to 850–1100°C (depending on material type).
3. Bending Arm Mechanism:
   Once the material is heated to plastic deformation temperature, a mechanical arm pushes the pipe through a fixed radius die to create a smooth bend.
4. Cooling (Quenching):
   After bending, forced air or water spray is applied to cool and set the bend, preventing distortion or spring-back.

Technical Advantages:

• No thinning or wrinkling of pipe wall (maintains wall thickness).
• Accurate bend radius, from 5D to 100D or more.
• Large diameter pipes (up to 1,200 mm or more) can be bent.
• No need for internal mandrels or external dies.
• Suitable for carbon steel, stainless steel, alloy steel, and titanium.

High-Frequency Bending Machine:

A High-Frequency (HF) Bending Machine is a type of induction bending system that uses high-frequency (typically 3–100 kHz) alternating current to heat the material.

Technical Features:

• High-Frequency Generator: Produces the electromagnetic field.
• Precise Temperature Control: Allows controlled, repeatable heating cycles.
• CNC/PLC Systems: Automates the bend angle, heating duration, feed rate, and quenching.

Where It’s Used:

• Pipeline construction (oil, gas, water).
• Shipbuilding & offshore structures.
• Power plants (nuclear and thermal).
• Structural and architectural fabrication.
• Automotive & aerospace (for custom exhaust or structural components).

Summary:

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