Choose different laser cleaning machines from the perspective of lasers

The following are several core parameters of laser cleaning machine:

1. Laser type (core in core)

This is the most important choice, which directly determines the cleaning effect and application scenario.

fiber laser

Wavelength: approximately 1064nm.

Features: High electro-optical conversion efficiency (up to 30% or more), good stability, maintenance free, small size, easy integration.

Applicable materials: It has extremely high absorption rate and the best cleaning efficiency for the vast majority of metal materials (iron, steel, aluminum, copper, etc.).

Conclusion: Currently, the absolute mainstream in the market (accounting for over 90%) should be given priority consideration unless there are special needs.

Pulsed fiber laser

Features: Operates through short pulses and high peak power, with minimal heat affected zone.

Advantages: It is very suitable for precision cleaning, such as removing micron thick oxide layers and coatings, cleaning welds, processing cultural relics, etc., which can protect the substrate to the greatest extent possible.

Applications: Mold cleaning, electronic components, high-end parts, cultural relic restoration.

Continuous fiber laser

Features: Continuous laser output, high average power.

Advantages: Extremely fast cleaning speed, suitable for rapid peeling of large areas and thick coatings.

Disadvantage: Excessive heat accumulation may cause thermal damage to thin plates or precision workpieces.

Application: Removal of thick paint layers on ships and large steel structural components.

Other types (such as excimer lasers)

Characteristics: Belonging to "cold processing", it directly destroys the molecular bonds of pollutants through photochemical reactions, with almost no thermal impact.

Advantage: Minimal damage to the substrate.

Disadvantages: The equipment is large, expensive, inefficient, and requires complex maintenance.

Application: Special fields such as semiconductors, microelectronics, and ultra-high precision cleaning.

Summary: For the vast majority of metal cleaning applications in the industrial field, choosing a pulsed fiber laser is the most balanced in terms of effectiveness and safety.