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What is the difference between laser etching and laser engraving

Laser marking, laser etching and small laser engraving machine laser engraving processes are becoming more and more popular. Marking, etching, and engraving Although these terms are often used interchangeably, there is a distinction between laser marking, laser etching, and laser engraving on a small laser engraving machine. Each type of process has its own applications and attributes, which makes it suitable for different jobs.

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Hardware etching and hardware laser engraving belong to two common metal surface treatment processes. Both have their own characteristics and have their own advantages and disadvantages.

Laser etching: The semiconductor industry is generally referred to as precision laser scribing.
Laser engraving: Use focused laser to directly engrave the required text and image, including CO2, optical fiber, semiconductor, green light and so on.

What is the difference between laser etching and laser engraving

1. The principle is different. Laser engraving uses the burning of a laser beam to vaporize a part of the surface of the medium, while etching uses the redox reaction between substances to dissolve the metal.

2. The effect is different. Laser engraving cannot achieve deep engraving for many metal media and certain dense materials. The depth is often very shallow and cannot meet the speed requirements. And the depth of metal etching can basically do whatever one wants, with a touch, you can touch the pattern, and can be combined with the painting process to achieve color and multicolor modification.

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3. The scope of application is different, and the scope of laser engraving is wider. Most media can be laser engraved or laser marked, while etching is limited to metal or stone.

4. The process flow is different, the laser engraving process is simple, and the process is few. However, the etching process has many details and requires many processes such as pre-processing, plate making, etching, and painting.

5. The production efficiency is different. Laser engraving is suitable for small batch engraving or marking, and the etching process is more suitable for mass production.

6. The accuracy is different. Generally speaking, the accuracy of the etching process is higher. Combined with the photoresist process, it is not a problem to achieve a line of 0.01 mm.