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Laser cutting is a cutting process that can be used to cut metal and non-metal materials with different material thicknesses. The guided, shaped and bundled laser beam lays the foundation for this. After it hits the workpiece, it heats the material to melt or evaporate. All laser power is concentrated at a point that is usually less than half a millimeter in diameter. If the heat input at this location is more than the heat lost due to thermal conduction, the laser beam will completely penetrate the material and the cutting process will begin. In other processes, heavy tools exert huge external forces on the plate, and the laser beam completes its work without contact. Therefore, the tool itself will not be worn, and the workpiece will not be deformed or damaged.
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laser cutting
Laser cutting is a cutting process that can be used to cut metal and non-metal materials with different material thicknesses. The guided, shaped and bundled laser beam lays the foundation for this. After it hits the workpiece, it heats the material to melt or evaporate. All laser power is concentrated at a point that is usually less than half a millimeter in diameter. If the heat input at this location is more than the heat lost due to thermal conduction, the laser beam will completely penetrate the material and the cutting process will begin. In other processes, heavy tools exert huge external forces on the plate, and the laser beam completes its work without contact. Therefore, the tool itself will not be worn, and the workpiece will not be deformed or damaged.
Scan welding
When using scanning welding, a movable mirror [1] is used to guide the processing beam. The laser beam is guided by the angle change of the mirror [4]. This creates a processing area [3] in which welding operations can be carried out with a high degree of dynamics and precision. The size of the processing area depends on the working distance and the deflection angle of the laser beam. The processing speed and the spot diameter on the workpiece depend on the imaging characteristics of the mirror group, the incident angle of the laser beam, the beam quality and the material. Through the movement of an auxiliary lens system [2], the focus can also be moved with extremely high dynamics in the Z-axis direction, so that the three-dimensional workpiece can be processed completely without moving the laser head or the workpiece. Since the offset movement speed of the laser beam is very fast, there is almost no non-production time, and the laser can be operated in nearly 100% of the production time.
Micromachining
The use of solid-state lasers for structuring and etching was once unheard of. It wasn't until the keyword "micromachining" was widely circulated that this process became the focus of attention. When laser structuring and laser etching are used, small or even extremely small workpieces can be processed. Structure and etching are closely related in terms of process technology: short laser pulses generate high energy density with extremely high pulse power, so that most of the material is directly evaporated (sublimated). This process produces only a small amount of molten metal. Each laser pulse creates a small notch. After measurement, the diameter of the notch is usually tens of microns, and the depth is only a few microns.
Additive manufacturing
Regardless of the geometric shape of the component. Prototypes, single products, small batches and large batches. Few processes shape the future of manufacturing like additive manufacturing. With additive manufacturing or laser sintering, components with the highest material requirements can be produced, coated or repaired. Compared with the traditional ablation processing technology (such as turning or milling), in additive manufacturing, design determines manufacturing, so it is also called "design-driven manufacturing".
Cutting fiber reinforced synthetic materials
High strength and light weight, especially compared with high-strength steel or aluminum, fiber-reinforced composite materials are particularly excellent. Whether it is carbon fiber, glass fiber or aramid fiber, fiber-reinforced composite materials are ideal materials for industries that require the installation of many lightweight structural elements (such as aerospace, automotive and wind power industries). It is often difficult to process fiber composites because the primary problem is: stubbornness and sensitivity. Therefore, it brings multiple challenges in all mechanical cutting processes. The laser has great potential for high-efficiency processing because of its non-contact operation and absolutely no wear. Even thin and light FRP parts can be cut accurately, without the need for the material to bear the mechanical or auxiliary material load.
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