Comparison item | Laser cleaning | Chemical cleaning | Mechanical polishing | Dry ice cleaning | Ultrasonic cleaning |
Cleaning method | Laser, non-contact | Chemical cleaning agent, contact type | Mechanical/sandpaper, contact type | Dry ice, non-contact type | Cleaning agent, contact type |
Workpiece damage | no damage | Damage | Damage | no damage | no damage |
Cleaning efficiency | high | low | Low | Medium | medium |
consumables | No consumables | Chemical cleaning agent | Sandpaper, grinding wheel, whetstone, etc. | Dry ice | Special cleaning fluid |
Cleaning effect | Very good, very clean | Fine but uneven | Fine but uneven | Excellent, uneven | Excellent, small clean area |
Precision cleaning | Precise and controllable, high precision | Uncontrollable, poor accuracy | Uncontrollable, poor accuracy | Uncontrollable, poor accuracy | Cannot specify the range for cleaning |
Safety/environmental protection | No pollution | Chemical pollution environment | polluted environment | No pollution | No pollution |
Manual operation | Simple operation, hand-held or automated | The process flow is complex, requires high requirements for operators, and requires pollution protection measures | It is very labor intensive and laborious, and pollution prevention measures are needed | Simple operation, hand-held or automated | Simple operation, but need to manually add consumables |
Cost input | High initial investment, no consumables, low maintenance cost | Low initial investment and extremely high cost of consumables | High initial investment, low labor cost of consumables | The first time investment is medium, the cost of consumables is high | Low initial investment, medium cost of consumables |
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