Water knife guides type laser is the mixture technology of laser technology and current technology. In this unique Laser Cutting craft, a fine young linear water knife is used as smooth wave guide, go up in order to make high power laser is shot in workpiece. Compare with photograph of craft of traditional Laser Cutting, the main advantage of this kind of method depends on: (1) parallel sidewall; (2) the input of low quantity of heat of workpiece, be attributed to workpiece to happen in the position that is heated before it fitly in the refrigeration between laser pulse; (3) melt metal is seasonable eduction, be attributed to the tall momentum of water knife. Photograph comparing and curium cut, metal of cut of this kind of technology can be achieved without burr effect, the mechanical pressure that brings to bear on to go up in workpiece is little also much. Water knife leads Laser Cutting system, the water knife that uses among them is 5 to 50 million handkerchief pure go ionic water and filter water. Nozzle is You Labao stone or diamond are made, can produce long and stable water knife in order to ensure. Stimulate beam of light, through fiber-optic come out by laser, by calibration, through enlarge bundle implement, cross a quartz centrally next the window, enter spray head. Coupling unit and common fiber-optic coupling unit are similar, distributinging besides the brightness in nozzle only is flat-roofed, and distributing without gauss. In entering water knife when laser, the light interface place in air and water happens complete inside instead. In cut process, workpiece is secured to be on workbench of a CNC, beam of light is stimulated to fall in what water knife guides forward a direction is mobile. Bareheaded along to it perpendicular direction is mobile, be in only when to get used to different water depressive all sorts of jobs of different nozzle dimension are apart from, just be necessary to change the distance between workbench and workpiece. Won't fluctuant in cut process. 5 years many since, this one tool has gotten applied in respect of a lot of treatment. During this, compare with photograph of technology of traditional Laser Cutting, LMJ water knife guides laser to show various advantages in industrial application respect. Normally, LMJ technology uses solid Nd:YAG infra-red laser (1064nm, 50-200W) . Infra-red water knife guides laser to apply in silicon, pottery and porcelain and hard metal, cubic nitrogen to change zinc of boracic, manganese is magnetism core and metal there is very tall efficiency on film. The laser that uses this one type can obtain excel to grind curium method the cut speed of 8 times. LMJ system is in such as GaAs, GaN and copper such fragile and very tall efficiency is had on the material of machining hard. These material are ionic to going the contact of water is not sensitive. All semiconductor products are to pass offset and wet etch machine production, and often be mixed go ionic water and hydrous methodological contact. It is so in the cut process of these material, the participation of water is completely possible. Because of green light (532nm) absorb coefficient a bit less than infra-red light, we did a test, with the green smooth laser of 200W, look in whether can obtain and rapidder rate get below the circumstance of the cut quality with infra-red same laser. The result is the front, the green smooth laser of 200W can get higher rate completely easily, special in semiconductor industry, the enough translate into of actor potential energy of technology of water knife laser does not have a fragment, without burr and without damaged horn, the chip that resembles 75 micron even is so small also be no problem. Up to now, this technology used laser of infra-red He Luguang merely. Thereby in the material that applicable limits limitation is in material to have enough absorptivity to these wavelengh. So, cut is transparent material (glass, diamond, sapphirine, transparent polymer) it is very difficult, it is impossible even. Ultraviolet light has better absorptivity in transparent material, so applicable and ultraviolet the tentative idea of laser is put forward in domain of small spurt technology. One is applied to ultraviolet the device of wavelengh has been built, it used quartz and CaF2 lens. This one theory shows usable wavelengh is restricted to be inside the limits with specific absorption low water, that is to say absorptivity wants under 1/cm. Ultraviolet light is included to be in this one window, but the test that has not done high strenth so far. Microjet facility can be set. Laser source passes fiber-optic be linked together with cut head. Damage to avoid fiber-optic, the water knife of 50 micron uses the diameter diameter the fine core of 100 micron. Ultraviolet of laser introduce should meet the domain that brings new cut application, for instance transparent material, smaller water knife diameter also can appear in the meantime. Infra-red knife of water of need of much model laser has very small spray head. Because focusing is patulous,stimulate beam of light to enter the necessary dimension of water knife, this kind of demand is very inaccessible. The process capability with new other, cut or sculpture are for instance transparent material, such as polymer, glass, diamond and sapphirine dispute often have the application of foreground. For instance, ultraviolet laser can be chip of silicon of semiconductor industry cut, by a glass or diamond cladding, this kind of material often is used to produce fast photoelectricity package. Have perspective as much in electronic industry, because of the existence with the glass in PCB and fiber-optic Kevlar, be full of flexibility especially, use method of cut of standard small spurt very hard to reach. CNC MillingCNC Machining