Different cutting machines classification

From the laser principle, the laser has four characteristics: good monochromaticity, good coherence, good directionality, and high brightness. It is commonly known as three good and one high.

Laser macroscopic manufacturing technology can be divided into two major categories: laser conventional manufacturing and laser additive manufacturing. The laser macro manufacturing technology mainly utilizes the characteristics of laser brightness and directionality.

1) Laser conventional manufacturing

1. Basic principle: a laser with sufficient brightness is not focused and then irradiated onto a specified part of the material to be processed. The processed material can undergo gasification, melting, metallurgical structure and internal stress change after being irradiated by laser with different parameters. In order to achieve different processing purposes such as workpiece material removal, connection, modification and separation.

2.  main process: laser conventional manufacturing main process methods include laser surface engineering (including laser surface treatment, laser quenching, laser spraying, laser vapor deposition and laser shock hardening, etc., domestic common laser marking can also be classified in laser surface treatment Main processes such as laser welding and laser cutting.

2) Laser additive manufacturing

Laser additive manufacturing technology is a kind of additive manufacturing technology using laser as energy source. According to the forming principle, it can be divided into two categories: laser selective melting and laser metal direct forming.

(1) Laser selective melting

(2) Working principle: Is the laser selective melting technology using a high-energy laser beam? According to a predetermined scanning path, a technique of scanning a metal powder pre-coated on a powder bed and completely melting it to form a workpiece after cooling and solidifying, the working principle