| Weld Line A weld line is a visible seam that occurs when two molten flow fronts meet during 3D printing, affecting layer bonding, surface finish, and mechanical strength. It is prevalent in multi-material prints, complex geometries, or directional changes. Proper print orientation, flow rate, and temperature settings minimize weld lines. Advanced slicing software adjusts toolpaths, overlap, and cooling profiles for consistent layer bonding. Proper handling enhances dimensional accuracy, aesthetics, and structural integrity. Managing weld lines ensures reliable, high-quality prints with smooth surfaces and strong mechanical properties. |
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