The similarities and differences between laser and electron beam, surface treatment

Compare the similarities and differences between laser surface treatment technology and electron beam surface treatment technology.

Electron beam, ion beam, and laser beam are the three major carriers in the field of surface engineering, which are known as three-beam modification. All have high energy density characteristics.

Ion beam processing is an element implantation process, which has the effects of radiation damage, shot peening, surface compression, surface amorphous formation, and formation of dispersed compound particles. The main effect of electron beams and laser beams is high energy without radiation. Features such as photo, surface compression, etc.

1. Processing principle: The processing principle of electron beam and ion beam is similar, both of which occur impact effect, sputtering effect and injection effect to realize processing; while the mechanism of laser beam processing is thermal effect.

2. Processing device: electron beam is similar to ion beam, mainly made of electron gun system, vacuum system, control system, and power supply system; while laser beam is made up of laser, power supply, optical system, mechanical system, etc.

3. Processing features:

Electron beam: small beam diameter, high energy density; non-contact processing, there is no obvious mechanical cutting force between the tool and the processed workpiece during processing, and no macro stress and deformation are generated; the range of processed objects is wide; the electron beam energy is high, The processing speed is fast and the efficiency is high; electron beam processing requires a set of special equipment and vacuum system, which is expensive.

Ion beam: high processing accuracy and surface quality; wide range of processing materials; rich processing methods; good performance and easy to realize automation; wide range of applications and can be selected according to processing requirements.

Laser beam: high processing precision; wide range of processing materials; good processing performance; fast processing speed and high efficiency; expensive processing methods.

Electron beam; electron beam scanning exposure; electron beam projection exposure; electron beam surface modification.

Ion beam: ion beam sputtering removal processing; ion beam sputtering coating processing; ion beam implantation processing; ion beam exposure processing.

Laser beam: high processing accuracy; wide range of processing materials; good processing performance; fast processing speed and high efficiency; expensive.