Laser produces new effect in manufacturing industry
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source:PURELIFE CNC Machining
Laser is pulled in milling, turn and new effect is being produced in finishing treatment. The engineers in manufacturing industry are using laser to process the data of more sort, and our face applies the more of aborning it. Applied limits from appearance with the tool shape quickly, till laser sclerosis handles mould and joint and sculpture metal spare parts,wait. Use laser technology to replace traditional finishing method, can prolong cutting tool life and improve cutting tool and spare parts performance. The chemical component that enters alloy material to be able to change the face toward exterior layer mix into with laser light beam reachs its character. Current, laser finishing basically applies at making a tool, make especially use at forginging the mould with die-casting. Lend the thermochemistry on assistant talking the model, engineers had developed the new exterior layer that is used at tool and spare parts. Squash for example the mould falls in high temperature condition, as a result of time the contact grows, they can produce greater strain. And after the carbide that enters photograph and vanadium to mix into of a certain tool, make the exterior modified of the tool, the hardness that raised it retains ability, increased the hardness below high temperature and the capacity that improved wear-resisting caustic. Other alloy, include those to contain tungsten and the alloy that get, very useful also. Generally speaking, use mix into of laser light beam to enter the method of alloy, can make tool life raises 100 ％ than using tradition method - 500 ％ , because was reduced,take up the tool is reached change the cost that the tool concerns, saved cost thereby. Laser finishing technology still can enhance the performance of product part. The investigator of Fraunhofer institute people use laser to come sclerotic sealing contact surface and sliding slideway, the laser surface remelting of camshaft and the valve of the internal-combustion engine that wrap Fu and valve base. Laser can be used at sclerotic, heavy fused, impure alloy and besmear Fu metal, for the surface outer the modified processing that undertakes thermochemistry created a lot of opportunities. Handle manufacturing work through this kind of modified, have taller bear the ability of all sorts of stress. Laser light beam can locate focusing, accurately, this one characteristic makes laser technology comfortable at local the finishing treatment that turn. The person that use can handle easy tatty area selectively, still have taller reproduction sex at the same time. Use laser technology, engineers can machine a structure of first-rate surface appearance (ToPograhy) , on the product that is used in bearing and sealed industry especially. In this kind relative to newer application in, pulse laser light beam is enduring the action surface of attrition stress, the miniature that produces a regulation is lubricant hole. The crater shape construction that produces with this kind of means basically is to suffer laser light beam to obtain work apparently geometrical appearance and intensity distributive influence. Substantially, any systems that contain osculatory surface can produce attrition strain, drift for example the circle, can use such as the material such as advanced ceramics or metal makes laser form. The functional surface of laser modified basically is the area that tiny chance to extricateoneself from an awkward position forms, contain reappearance, well-regulated even miniature is lubricant child L is unoccupied place. The diameter that the user can allow these opening, deepness and distributing to suit with the laden photograph that is added on the spare parts. Slide to pottery and porcelain for example annulus is sealed, measure is appropriate distributing proper concave and convex place can reduce attrition to reach greatly wear away. The treatment speed in this process depends on the sort of laser, it is every second commonly 1000 aperture. CO has been used on industry. And NdzYAG high-power laser serves as process instrumentation. But as a result of laser and laser system very complex, cost is high, still involve the issue of measure respect, small-sized company uses laser beam machining hard. Perhaps this kind of case can happen before long change. Original, diode laser provides the output power that is less than 50W. Material is handled (drill rod solder, sculpture, case hardening and plasticity or heat conduction solder) needs power, apparent far tower above this are numeric. High-power diode laser (HPDL) , will high-powered with compact structure union is an organic whole. They are comprised by many individual diode, these diode layer alternate are in like box of a shoe in the crust of size. Power accumulates a value (most greatly 2. 5kW) and enough of quality of beam of light undertake material is handled. Fraunhofer institute uses the test that HPDL has to make clear, it is OK and sclerotic the steel of classics temper and solder armor plate and copperplate. A HDPL can blast off 0. 84 μ M, 0. The light of wavelengh of 94 μ M, and C04) laser is in 10. The wavelengh of 6 μ M goes out to drill, nd: YAG laser is in 1. The wavelengh of 064 μ M goes out to drill. Because wavelengh is shorter, accordingly, the energy that provides from HDPL and the smooth photograph that issue from other laser are compared, its energy is absorbed more easily by target place. Inferior the investigator of institute of technology of production of treasure city Fraunhofer people had been according to industrial research contract on machine tool, production machinery and robot compositive the HDPL(power limits that loaded 3 kinds to differ is as high as 2. 5kW) undertakes industry studies. Use laser diode to undertake soldering, can offer better flexibility and cost effectiveness for the user. To be being done not have to restrict by the geometrical appearance of joint spare parts and dimension, solder speed is as high as 1. 0m ／ Min. Laser can solder almost all sorts of thermoplastic. This kind of craft can avoid to stick receive an issue, because be not contacted with workpiece. In addition, laser soldered to still decrease plastic the heat that go up is laden, reduced what appear possibly to bilge crack. Make the much look that use the meat see the dye that will present a multicoloured, it is transparent close infra-red light to (include black) , HPDL can is opposite those who contain this kind of color is plastic undertake soldering. The experiment makes clear, solder with what diode laser undertakes, its intensity is OK with use more traditional plastic solder the intensity woman of technical place Niu Cheng is beautiful. Controlled metal piles up (CMB) craft solders laser deposit to be an organic whole with union of high speed milling. Solder through laser deposit working procedure. Can generate the metallic stuff that is close to finished product appearance to pile up. Because metallic pink wood is in the laser light beam of high-energy quantity,maintain in, on formulary method, accordingly, the system is OK a method follows form of group of land of a method till a certain spare parts, outline that till reach place,needs. Should create a void, need only short when interrupt laser light beam and pulverous feed can. What this technology uses is melt metal. Appear in tool surface consequently accumulation, the corner in the tool and brim can form curl. To handle this kind of case, fraunhofer institute (cooperate with factory of machine tool of a Germany) made a machine tool, it is high speed milling and deposit treatment union an organic whole. Through milling treatment gives appearance of a level off, in order to ensure material deposit is even, accord with a requirement with the appearance of the pointed acutance of the brim and spare parts and dimension precision. All operations are full by, stage machine tool is finished, because this operator can plan good technology measure,make the machine tool moves automatically. In milling process, laser deposit solders nozzle accumulates a treatment area automatically, lest produce collision risk, protect cutting tool and spare parts not to suffer the effect that cut bits. In principle, the user can use any metals that can solder to have CMB technology, arrive from steel, copper hard alloy material. Cupreous electrode can use CMB craft to be made automatically, and can use with material of wear-resisting covering layer only before make whole part. The deposit layer of treatment has only very Mm is thick. After because be in,generating each, what undertake subsequently is outline milling, accordingly, the outstanding length of milling cutting tool is less than 2mm, next, the milling cutter that can use a diameter to be less than 1mm undertakes machining. Use these small-sized cutting cutting tool, can form radius of narrow and deep groove, its corner to hold the range that permits in eject Injection Mold Tooling inside. Laser is additional hot condition is machined (LAM) faces data, be in economically feasible also. Laser beam machining and turning, milling and come back press the union of figuration law photograph, treatment that can optimize difficult cutting and difficult figuration material. In laser additional heat is added and come back in pressing form cutting, be opposite in cutting or figuration operation by laser system material undertakes local heating. The material of ascendant meeting bate of temperature, make it easier machine and figuration. The milling operation that investigator had laser shop is aided on titanium, casting pig and high strenth steel, discovery milling force dropped 30%-70%(uses high-speed steel) , cutting tool wears away dropped about 90% . Predict in some this circumstance, laser assists treatment to be able to raise milling rate greatly. When need cutting processes advanced ceramics, use hot condition to machine means to be able to make machine a process to become easier. Nitrogen changes the silicon pottery and porcelain, cutting knife that can use geometrical appearance inaccuracy to decide only before to undertake machining, can undertake with LAM craft turning is machined however nowadays. Use existing technology and machine tool, the user is already OK the complex form spare parts that turning machines material to be azotic silicon pottery and porcelain, obtain be as high as Ra0. The exterior surface roughness of 3 μ M. These systems are in lathe jacket enters a 3kWNd: YAG laser, or be, stage 1. The laser of high power diode of 2kW is compositive and into. Give full cooperation through undertaking with relevant industry, get German government fund supports, fraunhofer institute has developed and made, station market: Into the accurate turning machine tool that has laser of diode of high power of a HPDL(prototype. The first machine tool that has complete industrial function can appear on the market 1999. In break up and come back in pressing turning to machine, by compositive coming back semi-manufactured goods can heat selectively in pressing the laser on lathe to be operated in figuration. Should heat the process raised temperature and figuration rate, reduced sclerosis of meet an emergency. Laser is auxiliary come back the figuration power that controlled form cutting to reduce place to need, cause inferior material sclerosis rate thereby. Laser is auxiliary come back it is law, OK to press form cutting in, outfit clip locally, below the case that does not use anneal process, generate on symmetrical swing tower spare parts inside, outside outline of tine, figuration and complex geometrical form. It can avoid to use the cutting process with high cost, saved stuff, make a weight the light, function part that has good strength property. Laser turn controls workpiece process, be a kind have newly much people sexual craft, need not use any figuration tools. Use generation rebounds the craft of blame contact laser beam machining of effect, can finish a lot of figuration jobs, in including the turn of plate material to control a process, the temperature change gradient in the spare parts can produce mechanical stress, produce controlled plasticity to be out of shape from this. Laser turn makes technology, comfortable at making appearance and undertake small lot is produced, current, be in an experiment to study level in Fraunhofer institute. Automobile industry is right custom-built solder the demand of blank is showing the sign that rises ceaselessly. To win competition better, distributors people need the system with a kind of more expensive cost effectiveness. Laser blank solders general percent defective of the system is in 3%-4% between. Use laser to come cut blank, can rise solder speed assures perfect clearance fit. unit of preparation of a brim compositive in loading solder deliver a child to produce a line, can solder typical automobile body flank cycle time reduces 32s, solder the garnish inside the door cycle time is reduced to 14s. Solder lateral of an automobile body reckons cost is 3 dollars, solder the estimation cost of the garnish inside a door is 2 dollars. Still having a profit additionally is, a such systems are in after to outfit aggravation is provided and soldering the process undertakes necessary modification, can solder already steel qualitative blank, also can solder aluminous material blank. CNC Milling