Pipe Bending

Overview

Pipe bending is a metal-forming process used to shape steel pipes or tubes into curves, angles, or complex geometries without compromising structural integrity. It is essential in industries like oil & gas, construction, automotive, and HVAC for routing pipelines around obstacles or fitting specific designs.

Key Methods of Pipe Bending:

1. Cold Bending
○ Performed at room temperature using mechanical force.
○ Suitable for thin-walled pipes and materials with good ductility.
○ Types: Rotary draw bending, compression bending, roll bending.

2. Hot Bending
○ Uses localized heating (induction coils) to soften the pipe before bending.
○ Ideal for thick-walled pipes, high-strength alloys, and large diameters.
○ Reduces risk of cracking or deformation.

3. Mandrel Bending
○ A mandrel (internal support) prevents wrinkling/collapsing in tight-radius bends.
○ Ensures smooth interior flow for high-pressure applications.