As the core load-bearing component of new energy vehicle battery packs, aluminum battery trays directly determine the overall welding strength, sealing performance and operational safety of the battery system. Traditional cleaning methods including acid pickling, sandblasting and mechanical grinding often cause substrate scratches, surface deformation and chemical corrosion. They fail to thoroughly remove weld soot and oxide residues from dead corners, resulting in high defective rates, environmental pollution and unstable mass production efficiency.
To solve these industry pain points, the CHIRUI 300W Pulsed Laser Cleaning Machine delivers a high-precision, non-destructive and eco-friendly solution for battery tray weld cleaning. It perfectly replaces traditional processes and helps new energy manufacturers achieve quality upgrading, efficiency improvement and cost reduction.
1. Project Background & Traditional Pain Points
A professional new energy auto parts supplier focuses on mass production of aluminum alloy battery trays. The company faced severe bottlenecks in post-weld cleaning procedures:
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Incomplete cleaning: Weld soot, aluminum oxide layers and welding slag remained in complex weld corners, with a cleaning rate below 70%, causing frequent welding pores and slag inclusions, and leading to a product defect rate of over 15%.
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Substrate damage: Mechanical grinding caused surface scratches and tray deformation; acid pickling corroded the aluminum substrate and damaged the original anti-corrosion coating, shortening component service life.
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High environmental costs: Traditional chemical cleaning produced a large amount of hazardous wastewater and waste residue, requiring expensive annual hazardous waste disposal fees and failing to meet green manufacturing standards.
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Low efficiency & poor consistency: Manual polishing took 8–10 minutes per piece with unstable cleaning quality, unable to match automated production line tact time.
2. Solution: CHIRUI 300W Pulsed Laser Cleaning Machine
Tailored for 6061/6063 aluminum alloy battery tray weld cleaning scenarios, our 300W pulsed fiber laser cleaning equipment adopts a 1064nm laser wavelength matched with aluminum material absorption characteristics. With ultra-low heat input and precise laser control, it realizes selective removal of weld contaminants without damaging the base material. It supports both handheld and robot automatic integration to adapt to various complex weld structures including T-shaped welds and internal corner welds.
Core Parameters for Battery Tray Application
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Laser Power: 300W Pulsed (minimal thermal impact)
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Laser Wavelength: 1064nm (optimized for aluminum alloy cleaning)
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Cleaning Head Weight: ~1.3kg (lightweight & flexible)
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Scanning Width: 5–100mm (adjustable for different weld sizes)
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Cooling Mode: Air cooling (no external water supply required)
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Equipment Weight: ~60kg (easy to move and install on production lines)
Working Principle
The high-energy pulsed laser beam instantly vaporizes and strips weld soot, oxidation layers and welding slag through photothermal shock effect. The heat-affected zone is controlled within 0.05mm with no substrate damage. After cleaning, the surface roughness is stable at Ra 0.8–1.2μm, fully meeting high-standard welding and sealing requirements for battery trays.
3. Mass Production Effect & Data Verification
After three months of continuous production verification, the CHIRUI 300W laser cleaning machine achieved comprehensive upgrades in quality, efficiency, cost and environmental performance:
Superior Cleaning Quality & Stability
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Oxide and soot removal rate reaches 99.8%, achieving full coverage cleaning without dead corners
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Zero scratch, zero deformation and zero corrosion on aluminum substrate; original surface protection performance is completely retained
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Welding defective rate dropped from 15% to below 0.1%, reducing rework rate by 90%
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Uniform surface cleaning effectively reduces contact resistance and stabilizes battery heat dissipation performance
Dramatic Efficiency Improvement
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Single-piece cleaning time shortened to 1–2 minutes, 4–5 times higher efficiency than traditional crafts
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Supports one-click start and parameter preset recall, compatible with 24-hour uninterrupted automated production
Significant Cost & Environmental Benefits
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Zero consumables, zero chemicals, zero wastewater and waste residue
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Saves over 400,000 RMB annually on hazardous waste treatment costs
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Low power consumption design reduces single-piece energy consumption by 60%
Safe & User-Friendly Operation
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Lightweight cleaning head adapts to manual operation and robotic automatic line integration
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Equipped with laser safety interlock and emergency stop devices to ensure workshop operation safety
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Dust-free cleaning environment improves workshop working conditions
4. Customer Testimonial
“The CHIRUI 300W pulsed laser cleaner completely solved our long-standing battery tray weld cleaning problems. It delivers excellent and consistent cleaning results, greatly reduces defective rates and saves huge environmental processing costs. The equipment is easy to operate and perfectly matches our automated production line, becoming an essential quality assurance tool for our new energy product manufacturing.” — Production Director of New Energy Auto Parts Manufacturer
5. About CHIRUI Laser
CHIRUI Laser focuses on high-precision laser cleaning technology research and equipment manufacturing for new energy vehicles, lithium battery energy storage and intelligent manufacturing industries. We provide one-stop customized laser cleaning solutions including equipment supply, process debugging and after-sales technical support.
Our 300W pulsed laser cleaning machine is widely applied for pre-weld and post-weld cleaning of battery trays, motor housings and electronic control components, helping global manufacturing enterprises realize high-precision, efficient and green intelligent production.