Working Principle
The working principle of laser engraving is mainly to use the high-intensity focused laser beam emitted by the laser to oxidize or evaporate the material at the focus, and to form the required graphic mark by controlling the path of the laser on the surface of the material. Laser engraving is based on CNC technology, with laser as the processing medium, and is achieved through equipment such as laser cutting machines.
Although the laser engraving process is not directly involved in CNC machining parts (CNC turning and CNC milling) and injection molding processing, it is often used in CNC machining parts factory and is indispensable in the production of precision machining parts and plastic moulding parts.
Application fields
Laser engraving is widely used in various fields that require precise marking and engraving, such as buttons of mobile phones and electronic products, packaging materials, metal products, plastic products, etc. Due to its high precision and non-contact processing characteristics, laser engraving plays an important role in industrial production. CNC machining parts factory, plastic injection components or car part manufacturers will have one or two laser engraving machines in their factories.
Laser engraving machines use laser beams to permanently mark the surfaces of various materials. The effect of marking is to expose the deeper materials through the evaporation of the surface materials, or to carve out traces through the chemical and physical changes of the surface materials caused by light energy, or to burn off part of the materials through light energy to reveal the desired pattern and text. Because it does not produce waste and is green and environmentally friendly, it is recommended to use laser engraving as much as possible for medical equipment parts, especially in the medical industry.
Laser engraving is the principle of laser processing:
1.
Use the high-intensity focused laser beam emitted by the laser to oxidize the material at the focal point and thus process it.
2.
The effect of marking is to expose the deep material through the evaporation of the surface material, or to leave traces through the chemical and physical changes of the surface material caused by 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 required etching pattern and text.
Laser wavelength:
Ultraviolet laser engraving machine: 355nm, 266 nm
Green laser engraving machine: 532nm
Lamp pump YAG laser engraving machine: 1064nm
Semiconductor side pump YAG laser engraving machine, semiconductor end pump YAG laser engraving machine: 1064nm
Fiber laser engraving machine: 1064nm
CO2 laser engraving machine: 10.64um
Industry application:
It can engrave a variety of non-metallic materials. It is used in clothing accessories, pharmaceutical packaging, CNC milling machine aluminum, plastic moulding parts, injection plastic parts, CNC machining car parts, rubber products, shell nameplates, craft gifts, electronic components, integrated circuits (IC), electrical appliances, mobile communications, hardware products, tool accessories, precision instruments, glasses and clocks, jewelry, auto parts, plastic buttons, building materials, medical equipment and other industries. It can engrave metals and a variety of non-metallic materials. It is more suitable for processing some products that require fineness and high precision.
In short, its application is very extensive. In CNC milling parts and CNC turning parts, it is often the best to engrave the name, LOGO, or number of the parts after the parts are processed. In plastic injection components, it is often used to engrave products produced by injection molding.
Applicable materials:
Ordinary metals and alloys (all metals such as iron, copper, aluminum, magnesium, zinc, etc.), rare metals and alloys (gold, silver, titanium), metal oxides (all kinds of metal oxides), special surface treatment (phosphating, aluminum anodizing, electroplating surface), ABS material, ink, epoxy resin.
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