Edge radii
Edge radii describe rounded component edges that are created by controlled material removal during edge rounding.
In industrial sheet metal processing, this creates a reproducible, radius-like transition between surface and edge.
Formation of edge radii
Edge radii are created by mechanically machining the workpiece edge. The sharp-edged component edge is selectively machined to create a smooth transition between the surface and the edge.
Factors influencing the edge condition
- tool design
- material properties
- process parameters
- contact pressure
- tool intervention
Impact on subsequent processes
Reproducible edge radii improve edge quality and stabilize subsequent machining and coating processes.
Especially with coated components, a smooth transition between surface and edge reduces the risk of coating defects and local stress peaks.
Typical quality effects
- improved coating capability
- consistent edge quality
- reduced risk of injury
- stable subsequent processes
- improved component feel
Edge rounding as a process step
In the edge rounding process step, material is removed in a controlled manner from the workpiece edge to create edge radii or a reproducible radius-like transition.
The goal is to achieve uniform edge processing without uncontrolled material displacement or secondary burr formation.
Difference between a sharp and a rounded edge
Sharp-edged component edges often exhibit local stress peaks and increased loads on coatings. Edge radii, on the other hand, improve the uniformity of the edge condition.
Technical differences
- Sharp edge: high local stress at the edge
- Edge radii: smooth transition between surface and edge
- Sharp edge: increased risk of coating defects
- Edge radii: more stable coating conditions
FAQ
Why are edge radii important?
Edge radii improve edge quality, reduce sharp transitions and stabilize subsequent coating and processing processes.
How are edge radii created?
Edge radii are created by controlled material removal during mechanical edge processing.