Cut edge roughness
Cut edge roughness describes the unevenness at the cut edge of a workpiece, resulting from flow instabilities and vibrations of the processing head. It affects the quality and behavior of the material.
Physicochemical Mechanism of Action
Cut-edge roughness arises from irregular flows of the cutting medium (e.g., hydrogen) and vibrations of the cutting head during the cutting process. These instabilities cause microscopic irregularities on the cut edge.
Metallurgical Relevance & Welding Risks
High cut-edge roughness can lead to increased stress buildup, causing cracks or deformation. It also impairs weld quality, as material at rough edges is harder to work with.
Workshop Practice & Action Items
To achieve low cut-edge roughness, ensure stable cutting head vibrations and optimize cutting medium flow. If needed, use polishing agents or smooth tools to flatten the edges.