Chamfering

Chamfering is the precision machining process of removing sharp 90-degree edges from the ends of a tube to create a symmetrical, angled slope. Unlike a simple deburring process that merely removes rough metal "burrs," chamfering modifies the actual geometry of the tube end, creating a lead-in bevel on the outer diameter (OD), inner diameter (ID), or both.

The primary engineering objectives of tube chamfering are weld preparation and assembly efficiency. For heavy-walled steel conduits and pipes, an external chamfer creates a "V-groove" when two tubes are butt-jointed, allowing for deeper weld penetration and superior joint integrity. Internally, chamfering ensures a smooth flow path for fluids or cables, preventing "snagging" during installation. Additionally, it facilitates the seamless entry of tubes into fittings or threading dies, significantly reducing the risk of cross-threading or mechanical interference in automated assembly lines. By dispersing stress concentrations at the edges, chamfering also enhances the fatigue life and safety of the final industrial system.