The principles and application fields of laser cleaning
Release time：2026.03.13
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Laser cleaning is hailed as "the most promising green cleaning technology of the 21st century." It utilizes high-energy laser beams to precisely remove contaminants, combining environmental friendliness, efficiency, and precise controllability. Below, we will delve into its principles and applications.
Working Principle of Laser Cleaning
The core of laser cleaning lies in utilizing high-energy laser beams to irradiate the surface of workpieces, where the interaction between light and matter causes contaminants to instantly evaporate, gasify, or peel off. This process can be envisioned as a meticulously controlled "energy game.".
Laser cleaning has now matured and is widely applied in high-end manufacturing, aerospace, precision microelectronics, new energy, as well as shipbuilding and heavy industry.
Comparative advantages over traditional cleaning methods
Compared to traditional methods such as mechanical polishing and chemical cleaning, laser cleaning offers the following outstanding advantages:
• Environmentally friendly: No chemical solvents required, no wastewater or exhaust emissions, and waste materials are solid powders that are easy to collect
• Non-contact: No mechanical stress, no damage to the substrate, and capable of cleaning complex structures
• High Precision and Controllability: Enables selective cleaning and automated integration
• Low operating cost: No consumables required, with electricity being the primary cost, delivering significant long-term benefits
Frontier Development: Current laser cleaning is advancing toward intelligentization (integrating machine vision and AI), high power, and portability, while the application of ultrafast lasers (femtosecond lasers) will further expand their potential in the most precision-demanding scenarios.
