Surface treatment technology——radium carving

01 Process Definition

Laser engraving, also known as laser carving, is based on CNC technology and uses laser as a processing medium. The physical transformation of the processing material into instant melting and vaporization under the irradiation of laser engraving can enable laser engraving to achieve the purpose of processing. Laser engraving is to use laser technology to write words on objects. The words engraved by this technology have no scratches, the surface of the object is still smooth, and the handwriting will not be worn.

02 Process Classification

According to the different engraving methods, it can be divided into dot matrix engraving and vector cutting.

1.Dot matrix engraving: It is similar to high-definition dot matrix printing. The laser head swings left and right, and each time it engraves a line composed of a series of dots, and then the laser head moves up and down at the same time to engrave multiple lines to form a full-page image or text. The scanned graphics, text and vectorized graphics can all be engraved using dot matrix engraving.

2.Vector cutting: Vector cutting is different from dot engraving. Vector cutting is performed on the outer contour of the image. We usually use this mode to perform penetrating cutting on materials such as wood, paper, acrylic, etc., and can also perform marking operations on the surface of various materials.

03 Process Principle

Laser engraving technology can be divided into two principles according to its application:
Principle 1: Use the high-intensity focused laser beam emitted by the laser to melt and vaporize the material at the focal point to process it.
Principle 2: The effect of marking is to expose the deep material through the evaporation of the surface material, or to cause the chemical and physical changes of the surface material to leave traces through light energy, or to burn part of the material through light energy and "carve" out traces, or to burn part of the material through light energy to show the graphics and text to be etched.

04 Applicable materials

The materials that can be laser engraved are very wide. Generally speaking, laser engraving machines can engrave the following materials: bamboo and wood products, organic glass, metal plates, glass, stone, crystal, paper, two-color plates, alumina, leather, plastic, epoxy resin, polyester resin, and plastic-sprayed metal.

05 Appreciation of laser engraving products