The operation of 1064nm multimode infrared laser diode can achieve power output power of several watts to kilowatts, and the energy density is sufficient to quickly melt or vaporize most materials. The processing efficiency is much higher than that of low power single mode lasers, which is suitable for mass production fields, such as assembly line parts processing. The spot of multimode output is large and the energy distribution is relatively uniform, which can reduce local impact on the surface of the material and reduce the risk of cracks and deformation. It is especially suitable for the processing of thick materials or brittle materials (such as ceramics).
Compared with high-power single-mode lasers, 1064nm multi-mode infrared laser diodes have a simple structure, low manufacturing cost, and low precision requirements for the optical system (no complex focusing optical path is required). Daily maintenance is convenient and suitable for small and medium-sized processing enterprises. The 1064nm wavelength has a high absorption rate for metals (such as iron, aluminum) and non-metals (such as plastics and glass). There is no need to frequently change the infrared laser source for different materials, and it can be compatible with multi-category processing needs.
The spot size can be adjusted (no high-precision focusing is required) to adapt to workpieces of different sizes (such as large-area plates, small parts), and the surface flatness requirements of the workpiece are low, which is suitable for processing materials with irregular shapes or rough surfaces. In practical dot measuring work, 1064nm multimode laser diode always has strong environmental tolerance, which is less sensitive to vibration and temperature fluctuations than single mode lasers, and can still stably in complex environments such as industrial workshops, reducing processing interruptions caused by environmental interference.
Due to its high power output and specific wavelength characteristics, 1064nm multimode laser diodes are suitable for scenes with relatively moderate precision requirements but high efficiency processing in material processing, mainly including:
Welding and cladding of metal materials: near wavelength 1064nm multimode infrared laser diode is used for welding of medium and thick plates of metals such as stainless steel and aluminum alloys, the high power (several watts to hundreds of watts) of multimode lasers can quickly melt materials, and the wide spot can increase the welding pool area and improve the connection strength. in surface cladding, alloy coatings can be evenly deposited to enhance the wear resistance of materials.
Cutting and engraving of non-metallic materials: For plastics, wood, ceramics, etc., the high absorption rate of 1064nm multimode infrared laser diodes can achieve fast cutting, and the wide spot of multimode characteristics is suitable for large-area engraving (such as plate surface pattern processing), and batch processing can be completed without high-precision focusing.
Stripping of thin films and coatings: used to remove thin films on the surface of electronic components (such as display screens and circuit boards). The uniform energy distribution of 1064nm multimode infrared laser diodes can avoid substrate damage caused by local overheating and achieve large-area efficient stripping.
Material surface modification: by laser annealing the surface of metals or semiconductors, the wide action area of multimode laser diodes can achieve overall surface hardness improvement or stress elimination, which is suitable for surface strengthening of batch parts.