Laser pre-weld and post-weld cleaning for extra-large welded rail vehicle components is developed to fulfill full-process surface treatment requirements of aluminum alloy car bodies. It thoroughly removes oxides, grease and dust before welding, and precisely clears black soot and discolored oxide layers formed after welding, completely replacing traditional chemical cleaning and mechanical grinding processes.
- Integrated cleaning & welding equipment is independently designed and manufactured. The laser cleaning unit is integrated with existing automatic welding equipment. The control system adjusts laser focal length to realize integrated cleaning and welding operation for large aluminum alloy welded parts.
- It eliminates the secondary oxidation and repeated re-cleaning issues of oversized welded components to boost welding efficiency. This technology fills the market gap of laser cleaning application for aluminum alloy rail vehicle car bodies and realizes the industrialized integrated cleaning-welding solution, which has been awarded the CRRC Science and Technology Progress Award.
