Fiber Delivered Direct Diode Laser Applications скачать в хорошем качестве

Fiber Delivered Direct Diode Laser Applications

The video tells the Fiber Delivered Direct Diode Lasers applications. Our Store/Nuestra Tienda: https://spierlaser.en.alibaba.com Contact: clara@spierlaser.com +86-13335151833 Raycus: https://en.raycuslaser.com/ Raycus is one of the most popular brand of fiber laser in China, and they have been walking in innovation and development of the foreword of science and technology. Fiber Delivered Direct Diode Laser is a semiconductor laser module that improves the laser beam quality emitted by the semiconductor laser through a special optical system, and couples the focused laser into the fiber for transmission. It emits laser radiation with a wavelength of 915nm or around. Compared with other lasers, Fiber Delivered Direct Diode Lasers have many incomparable advantages: (1) Over 50% electrical-to-optical conversion; (2) More than 100,000 hours working life; (3) Capable of direct electrical modulation; (4) Compact structure; (5) Low cost. Let’s see a picture, it simply shows the beam difference between fiber laser and fiber delivered direct diode laser. Due to its unique and comprehensive features, Fiber Delivered Direct Diode Lasers show a very conspicuous performance in many industrial laser applications. 1: Laser Quench It uses the laser beam to heat the surface above the transformation point, and as the material cools itself, austenite transforms into martensite, thereby hardening the surface of the material. Compared with traditional quench processes, laser quench has the following advantages. 1: it will get a more uniform quenched surface, shows a fine-grained martensite; 2: the hardness is higher, generally 3-5HRC higher than the induction hardening technology; 3: instantaneous heating, the heating area of the workpiece is small, and almost no deformation; 4: it is easier to control the heating depth and trajectory, and to be automated; 5: no cooling medium, cleaner and more environmentally friendly; 6: for large parts or areas, there is not limited by abrasive tools or space. 2: Laser Cladding It is a new surface modification technology. Cladding material is added to the surface of base material, and the laser beam will merge them to form a metallurgically combined additive cladding layer. Laser cladding is superior to other cladding processes: 1: the cooling speed is very fast, and it is easy to produce a relatively fine crystal structure; 2: coating dilution rate is around 3%, it is easier to present a relatively firm metallurgical structure with the substrate; 3: if high-power rapid cladding is used, the deformation can be reduced to assembly allowed tolerance; 4: selection range of powder is wide; 5: the thickness of the one-pass powder fed coating is 0.2-2.0mm; 6: area selective cladding can be performed, and the material consumption is small. Let’s take a while to understand more on the coating dilution rate of laser cladding. From the picture here, we can get a simple formula, it displays a clear vision on the dilution rate. When the dilution rate value is too large, the possibility of cracking and deformation of the cladding layer will increase; but if the value is too small, a good metallurgical structure may not be formed, resulting in the cladding layer falling off easily. Generally speaking, the dilution rate of laser cladding should be less than 10%, preferably around 5%. 3: Laser Soldering(Tin) It refers to melt lead-containing or lead-free tin material into the gap of the base materials to connect items. It is widely used in the electronics and automotive industries, such as the production process of PCB boards, FPCB boards, connecting terminals and other products. 4: Laser Welding of Thermoplastics It is also referred to as "laser transmission welding" or "transmissive infrared welding", from the picture, we can get a typical process of thermoplastics laser welding. There will be two layers, the top one is capable to let the laser beam pass through and no function. When the laser beam arrives at the laser absorbing layer, it will generate heat energy. And meantime, the two layers are pressed together by the fixture, the heat energy is transferred from the absorbing layer to the transparent layer, so that the welding areas of the upper and lower are melted and combined. 5: Laser Welding for Metal Just as the common fiber laser welding machine for metal, the fiber delivered direct diode laser welding machine is exhibiting better in welding thin metals, like less than 0.5mm. 6: Laser Brazing It uses laser as a heat source to heat and melt the solder to finish the welding process. The main feature of laser brazing is to use the high energy density of the laser to achieve rapid heating at small areas to complete the brazing process. The brazed seam is smooth and clean, and an arc-shaped transition surface can be get, so no subsequent processing steps are required. It is commonly used in the processing of car roofs, trunk lids, etc.