Kerf geometric distortion
Kerf geometry distortion is the deviation of the ideal perpendicular cut contour due to process forces and temperature differences. It is minimized by optimized processes and feed control.
Physical-Chemical Mechanism of Action
Distortion of the cut joint geometry occurs when dynamic process forces (such as stresses and pressure) and thermal gradients (different temperatures in different areas of the material structure) during welding distort the ideal geometric properties of the cut contour. This can lead to uneven weld gaps or distorted contours.
Metallurgical Relevance & Welding Risks
High geometric distortion can lead to several problems: the weld is joined unevenly, which causes stress build-up and possible cracks. In addition, it can result in poor mechanical connection between the joined parts, affecting the strength of the overall structure.
Workshop Practice & Action Instructions
To minimize cut joint geometric distortion, take the following measures:
• Process optimization: Use a welding machine with high precision and adjustable parameters.
• Feed control: Ensure that the tool feed is constant and controlled.
• Temperature control: Keep the weld area as stable as possible to minimize thermal gradients.