Laser is one of great inventions of 20 centuries, it has tall brightness, good monochromatic sex and coherence to reach directional this 4 big character. Because laser beam machining is not to have osculatory treatment, do not have immediate impact to workpiece, because this does not have machinery to be out of shape, without concussion noise; Do not have in process of laser beam machining " cutting tool " wear away, without " cutting force " action at workpiece; Density of energy of beam of light is stimulated in process of laser beam machining tall, treatment rate is rapid, and be local treatment, be done not have to be not laser illuminate place or affect minimum. Accordingly, area of its heat influence is small, workpiece heat is out of shape small, follow-up treatment is least. Because stimulate beam of light to direct easily, commutation of direction of focusing, implementation, cooperate extremely easily to undertake machining to intricate work with numerical control system. Because this laser beam machining is a kind of very agile and convenient treatment method, manufacturing efficiency is tall, treatment quality is stable and reliable, economic benefits and social benefit are good. Laser beam machining applicably the metal at much (alloy of carbolic steel, stainless steel, aluminous, aluminium alloy, titanium) reach metalloid material (glass, organic glass, beaverboard, lumber, paper) , especially other technique cannot machine exceed hard data and rare metal to wait. Apply to extensively: Car, metallurgy, electric appearance, microelectronics, hardware, machinery is made, adornment decorate, pack, presswork, traffic is carried, the industry such as pharmacy, cigarette. Laser Cutting technology, the cut craft photograph with other is compared, have high rate, high accuracy and tall adaptability, kerf is fine, hot influence area is small (be out of shape small) , good, cut does not have quality of cut end panel section of noise, welding line is knitted and function and mother capable person are close to wait for an advantage; And, treatment needs simple clamping apparatus only, need not mould, replaceable use mixed pattern to machine a method to what cut, can shorten greatly production is periodic, reduce manufacturing cost. Can undertake cutting seaming to oil sieve tube for example; Can be in charge of material, plank to have cut to the metal, use laser to cut seam a technology to be able to reduce diamond fretsaw piece the serious noise pollution of the generation in working process. Laser beam welding receives a technology, with other solder methodological photograph is compared, do not need electrode and fill strong data, can realize calm region to heat, make sure high speed heats. Because of the inorganic when soldering instrument is contacted, eliminated to have nothing to do matter drops by the likelihood of solder spare parts, weld zone gets pollution scarcely. It is high melting point, difficult to can be opposite stuff of frit metal or different ply, different metal undertakes soldering. Use laser beam welding to receive diamond fretsaw for example piece reach bit, can increase the combinative strength of matrix and diamond knife head, and geometrical precision is tall, can apply to dry cut, overcame the phenomenon that tooth falls off. Laser quenchs technology, say laser photograph becomes sclerotic again, it is the laser after using focusing bundle illuminate arrives steely material surface, make its temperature lifts quickly change bit of above, after laser removeds, because still be in the action of fast heat conduction of the lining material of microtherm, make surface layer cools quickly martensite photograph changes the dot is the following, obtain hard layer of temper by dipping in water. Have heat rate is rapid, quench hardness is tall, quench place can accuse, do not need to quench the advantage such as medium. Laser surface frit coagulates technology, it is to use stimulate beam of light to heat base material surface fused temperature above, because base material is in-house,after stimulating beam of light to removed heat conduction cools and make fuse layer surface cools quickly the finishing craft of caky crystallization. Special agree with grey mouth is cast-iron the exterior aggrandizement with nodular cast iron, improve wear-resisting performance. Laser concussion quenchs technology, it is to use the laser with power extremely high density bundle in the action inside extremely short time at metallic surface, make metallic surface happens local and acuteness evaporate, generation is as high as the pressure of 105 atmosphere, make metallic surface produces intense plasticity to be out of shape, form brilliant of a fault of high density, twin, make material surface intensity and hardness rise significantly. Suit those to cannot have the stuff of exterior aggrandizement through becoming sclerotic, wait like aluminium alloy. Laser industry application still includes: Laser stiletto (include stiletto of stiletto of stiletto of inclined hole, different aperture, plaster, China cypress paper, armor plate, pack presswork stiletto) , laser hits photoetching of fine tuning of the carve inside mark, glass, laser, laser, laser to make film of film, laser treatment, laser is enclosed, laser. CNC Milling