Cut edge roughness depth
Cut edge roughness depth measures the microscopic roughness at the edges of a weld or hole. It indicates the stability of the cutting process and whether the component is prone to vibration.
Physical-Chemical Mechanism of Action
Edge roughness height (SkR) describes the microscopic roughness at the edges of a weld or borehole. This roughness results from mechanical stresses and thermal deformation during the manufacturing process.
Metallurgical Relevance & Welding Risks
High SkR can lead to increased susceptibility to vibration, as microscopic cracks can act as resonance points. This can cause mechanical damage or premature failure of the component. Additionally, high roughness can make welding more difficult and lead to porosity and hot cracking.
Workshop Practice & Action Guidelines
To ensure low SkR, tools should be regularly inspected and sharpened. When welding, it is important to use uniform deformation and controlled cooling. SkR should be kept below 0.1 mm when drilling and cutting to minimize the risk of cracks and porosity.