Laser Edge Rounding for Metal Pushbelt Bands

The patent replaces the mechanical tumbling process with a laser-based thermal processing system. The laser beam melts and reshapes the band edges without physical contact, eliminating contamination from tumbling stones and metal fragments while achieving the desired edge rounding and burr removal.

The patent changes the physical state of the band material by using laser energy to melt the edges temporarily, then allowing controlled solidification. This phase change enables precise shaping and smoothing of the side faces without the mechanical contact that causes contamination in traditional tumbling processes.

The patent replaces mechanical burr removal with laser-based thermal processing. The laser precisely melts and removes burrs while simultaneously smoothing the side faces, eliminating the scratches and irregularities caused by mechanical tumbling while achieving superior surface quality.

The patent utilizes the phase transition of the band material from solid to liquid and back to solid through controlled laser heating and cooling. This allows for precise material removal and surface smoothing without the mechanical contact that creates defects in traditional processes.

The patent combines multiple functions into a single laser processing step: burr removal, edge rounding, and surface smoothing are all achieved simultaneously by the laser beam, maintaining production efficiency while eliminating the surface irregularities that reduce service life and appearance quality.

The patent replaces the multi-step mechanical process (cutting followed by tumbling) with a laser-based thermal processing system that achieves the same results while simultaneously improving surface quality and eliminating contamination, thereby enhancing both productivity and reliability.