Laser Cutting Machine Manufacturers: Principles and Characteristics of Laser Manufacturing Technology
12/31
2021
Laser cutter manufacturers believe that, based on the principles of lasers, lasers possess four key characteristics: excellent monochromaticity, high coherence, strong directivity, and high brightness. Laser macro‑manufacturing technology can be divided into two main categories: conventional laser manufacturing and laser additive manufacturing. Laser macro‑manufacturing technology primarily leverages the high brightness and excellent directivity of lasers.
Laser Cutting Machine Manufacturer: Traditional Laser Manufacturing Technology
1. Basic Principle: After focusing a laser beam of sufficient intensity, it is directed onto the designated area of the material to be processed. When exposed to the laser beam, the material undergoes vaporization, melting, and changes in its microstructure and internal stresses, thereby achieving various processing objectives such as material removal, joining, modification, and separation.
2. Major Process Methods: The primary process methods in conventional laser manufacturing include laser surface engineering (such as laser surface treatment, laser quenching, laser cladding, laser vapor deposition, and laser shock hardening), as well as commonly used laser marking techniques within China, which can also be categorized under laser surface treatment, along with laser welding and laser cutting.
Laser Cutting Machine Manufacturer: Laser Additive Manufacturing Technology
1. Laser Selective Melting
2. Working Principle: Laser Selective Melting is a technology that uses a high‑energy laser beam to pre‑coat metal powder within a powder bed, then selectively melt the powder according to a predetermined scanning path, allowing it to cool and solidify into a finished part.
3. Technical Features:
(1) The forming raw materials are generally metal powders, primarily including stainless steel, high‑temperature alloys, titanium alloys, high‑strength aluminum alloys, and precious metals.
(2) The formed parts exhibit excellent mechanical properties, with tensile energy exceeding that of castings and reaching the level of moving parts.
(3) Slow material feeding results in low forming efficiency, and part dimensions are limited by the powder hopper, making it unsuitable for manufacturing large, monolithic parts.
Laser Cutting Machine Manufacturers: Characteristics of Laser Manufacturing
1. Using the same laser source on a single piece of equipment, by adjusting the control method of the laser source, it is possible to perform various processes on the same type of material—such as cutting, drilling, welding, and surface treatment—either sequentially or simultaneously at multiple workstations.
2. Powder contact flexible machining can be completed in a short time, resulting in no mechanical deformation of the workpiece, minimal thermal deformation, small subsequent machining allowances, and minimal material loss during processing. The laser beam can easily undergo various optical transformations such as steering and focusing, making it easy to achieve automated machining of complex workpieces.
Laser cutter manufacturers believe that the application of laser cutting machines in industrial products has been developing rapidly in recent years. Their near‑infrared wavelengths are more conducive to the absorption of metallic materials, particularly in high‑power welding and cutting applications, where they demonstrate exceptionally high processing capabilities and cost efficiency. Compared with gas CO2 lasers, fiber laser cutting equipment boasts the following advantages: low maintenance, low energy consumption, and low operating costs; fiber‑based beam delivery eliminates the need for reflective lenses and external optical path adjustments; it features low power consumption, with the laser requiring no consumable working gases, making it both energy‑efficient and environmentally friendly. At the same time, near‑infrared lasers are more likely to cause harm to the human body—especially to the eyes—so equipment must be equipped with superior sealing and other protective features.
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