Disadvantages:
1. Due to the limitation of laser power and equipment volume, laser cutting machine can only cut medium and thick plates and thin plates, and the cutting speed decreases significantly with the increase of workpiece thickness.
2. Laser cutting equipment has high cost and large one-time investment.
Process point
1. Mechanical structure design of laser cutting machine. This is mainly reflected in the design of beam and machine structure. The beam must be designed to be lightweight and flexible, and the machine structure requires high stiffness and high stability. These are the basic elements to achieve high-precision laser cutting.
2. CNC technology of laser cutting machine. This requires a high quality control system. Good machine motion control performance at high speed and remote diagnosis and control.
3. High power laser beam transmission focusing technology. Beam quality is the key to laser cutting quality. Key technologies include: proprietary beam quality control, beam radius adjustment, beam compensation and video beam calibration system.
Cutting technology of laser cutting machine
4. Proprietary technology of laser cutting machine. These functions include edge monitoring, capacitance height tracking, cutting monitoring and penetration testing.
5. CAD/CAM software system of laser cutting machine. In order to coordinate with the laser cutting graphics conversion, the work of writing complex part programs is simple and smooth, and it is also very convenient to edit and modify. It is necessary to develop and design special CAD/CAM software systems.
6. High power laser cutting head design.
7. Research on laser cutting technology, especially for curved surface cutting, titanium alloy cutting, thick plate cutting, etc.
Scope of application
Most laser cutting machines are controlled by CNC programs or made into cutting robots. As a complex processing method, laser cutting can cut almost all materials, including 2D or 3D cutting of thin metal plates.
In the field of automobile manufacturing, the cutting technology of space curve such as roof window has been widely used. Volkswagen uses a 500W laser to cut complex body panels and various bent parts. In the aerospace industry, laser cutting technology is mainly used to cut special aviation materials, such as titanium alloy, aluminum alloy, nickel alloy, chromium alloy, stainless steel, cerium oxide, composite materials, plastics, ceramics and quartz.
Aerospace components processed by laser cutting include engine flame tube, titanium alloy thin-wall machine, aircraft frame, titanium alloy skin, long tail of wing, tail plate, helicopter main rotor, ceramic insulation tile of space shuttle, etc.
Laser cutting forming technology is also widely used in the field of non-metallic materials. It can not only cut high hardness and fragile materials, such as silicon nitride, ceramics, quartz, etc., but also cut flexible materials, such as cloth, paper, plastic sheets, rubber, etc., such as laser cutting of clothing, saving 10%~12% of materials and increasing efficiency by more than 3 times.
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