Kerf Taper
Cut kerf taper is the process where the width of a cut kerf decreases continuously from the entry side to the exit side of the workpiece. This causes uneven stress and can lead to cracks or distortion.
Physico-Chemical Mechanism of Action
The tapering of the cut occurs when the workpiece is not deformed uniformly during cutting. This can be caused by uneven material distribution or mechanical stresses in the workpiece. The taper results in the cut being wider at the entry point than at the exit point.
Metallurgical Relevance & Risks in Welding
The uneven stress distribution in the cut can lead to cracks or deformations in the workpiece. Additionally, the taper can alter the material's structure, affecting its mechanical properties. This can cause safety issues, especially in high-stress applications.
Shop Practice & Action Instructions
To minimize cut taper, it's important to deform the workpiece evenly during cutting. This can be achieved with optimized cutting settings and careful material selection. In high-stress applications, the taper should be thoroughly checked and corrected to ensure the workpiece has no cracks or deformations.