Zhen Jing technology is crucial

0 with 7.

Between 0 Mm, this depends on illuminator dimension and angular acceleration. Electrolyte plated film is inside corresponding wavelengh limits (for example, to laser of high power semiconductor and an angle of incidence limits of two side deflexion exceeds ± 12 when, between 780 Nm and 980 Nm) offer enough reflectivity (> 98.

0% ) . This kind of illuminator normally can susceptive power density amounts to 500 W/cm2, to more than sufficient of traditional the application that make bid. Other challenge was brought after scanning head introduces other application circumstance, for instance polymer solders. These application ask to undertake be controllinged accurately to workpiece temperature, undertake through pyrometer contact is measured is not normally. To this technology, the heat radiation signal of workpiece must return sensor from smooth road of laser of edge of laser facula position in, for instance, through Zhen Jingjing piece reflection is answered. High temperature measures typical wavelengh range for 1.

7 to 2.

2 M. As a result of the interpose report layer inside this wavelengh limits to laser radiate can penetrate, in quartz accordingly base the reverse side adds an aluminous plated film to be able to solve a problem. Here should remind a reader, if want patulous wavelengh range, need to adjust scanning optics system. The other new application of higher power, for instance laser solders remotely, long-range cut, or scanning heat treatment, ask hundreds of tile arrive to enumerate the power of kilowatt even, head of this pair of Zhen Jingsao copy posed new challenge. Although medium illuminator reflectivity is very tall (after having plating aluminous layer particularly) , partial light (<2% ) still likelihood transmission and by illuminator base or all round the component is absorbed. To low power laser, this kind of circumstance is very good processing. Laser of high nevertheless power may bring about device interior to produce a large number of quantity of heat, bring about apparent hot drift and unqualified long-term stability wave motion from this. Accordingly, function of scanning device water-cooling is very necessary, but can't solve a problem normally. Because it cannot avoid quartz,this is the hot load of illuminator is affected with what its bring about, bring about sub deformation for instance even molten perhaps gives out heat as a result of rotor and bearing cause trouble of Zhen Jing drive. Accordingly, new lens face technology is indispensable. The thermal conductance that the one big drawback of quartz is it is very low, the cool performance that this causes it is very poor. Silicon base material expects, for instance silicon or carborundum, can offer taller thermal conductance. Because carbolic silicon base material expects intensity is higher, because this allows to reduce its thickness, although its density is higher, still can reduce overall quality. If use opaque base, be like Si or SiC, aluminous layer of broadband reflex plating but direct plating is in plating dielectric uprights between film and makings of silicon base material on electric layer. Undertake to illuminator base mechanical design careful model is calculated, the design of optimization can be acquired in stability, weight, thermal conductivity and respect of moment of inertia. To systematic design, include servo electric machinery of circuit board, Zhen Jing and illuminator, have a few parameter need is particularly accurate: ● illuminator weight; ● illuminator torsion; Deformation of ● lens face (mechanical bedspring) ; Join between ● illuminator and drive electric machinery place deformation; The response of ● illuminator and system of drive electric machinery frequency. It is base with silicon, can reduce illuminator thickness (weight) , at the same time deformation, stress and thicker quartz base illuminator is identical (see a picture 3) however, as a result of weight of this illuminator system, stress and deformation are bigger still. Bright inertia and weight reduce silicon base emulation chart 15% , frequency keeps changeless almost. Of Nextpage misfortune is, this kind is improved cannot satisfy the market apparently the requirement of laser of tall to class of taller scanning speed and higher power density, kilowatt brightness. These application ask to use new material and new design, reduce base thermal stress further. Than silicon or quartz the stuff of pottery and porcelain with more expensive stiffness, carborundum material makes better choice. For all that, the design of SiC illuminator is far than the standard silicon radical or quartz illuminator is more difficult, because the method of a complete set of of this illuminator design needs,undertake modificatory. Finite yuan of analysis and Monte Carlo analysis are the very useful tool in this design. The main goal of the design is to decrease high frequency with ultralow frequency part and weight and inertial quadrature. For this we designed a brand-new illuminator back structure, see a picture 4 medium different pictures. Outclass of this illuminator stiffness silicon illuminator, because base is smaller and Yang model amount is different, stress is handled more easily also. Computation proved the biggest deformation and stress got illuminator improve clearly. This kind of method can acquire high accuracy and perfect mechanical property (the smallest change resonance to answer effect) . Rate of illuminator material tall heat conduction can realize temperature to distributing to be balanced quickly, although many laser energy was drawn below high power laser. Reinforcement of illuminator the reverse side is to all round atmosphere delivers quantity of heat to offer bigger surface and more efficient radiation refrigeration. Illuminator has very even temperature distributings and compare assuasive temperature gradient. Replace data: Beryllium regrettablly, siC special operate hard. Above all, because data is very hard, accordingly special machine hard. Next, with silicon or quartz technology of base plated film differs, base the reverse side is impossible plated film. And rear film can help the mechanical stress that offsets by film itself arises (that is to say, hot coefficient of expansion is different) . The result of this stress is sunken reflex face normally, produce those who be not expectation to leave anxious effect. The 3rd, the material quality of the requirement and amount special obtain hard, because delivery time is longer, make content shedding has a risk relatively. This problem may bring about time of research and development to grow too, and still may bring about delivery time grow too. Accordingly, the search that can replace data still is continueing. One kind replaces data is beryllium, can use as base material. This material pledges gently, can offer rate of tall heat conduction. The supply of beryllium is ample, delivery time is reasonable, because hardness is inferior, its treatment difficulty is smaller than carborundum. However, this kind of material is likewise faulty. Above all, this material is virulent. Because this material has been used in numerous product, satellite or system of flight of for military use are for instance medium, this problem can pass what had matured at present to commercialize special treatment craft to solve. To avoid the skin and beryllium contact, whole face uses nickel package. Because beryllium grain size is too large, cannot arrive in the polish below 630nm be less than λ / the flatness of 4, reason nickel can be used at polishing and plated film, the another advantage of this craft is it offerred fast face quality. Additional, the parameter after be based on model computation to optimize can ensure best design. Because inferior density and photograph counterpoise measure taller Yang model value of a quantity, the beryllium model design relative to carborundum model is more handy. The another advantage of this material is its adsorption ability. Comparative carborundum and beryllium illuminator, beryllium model is less than carborundum two critical frequency. This will be servo circuit board and Zhen Jing electric machinery provide more handy automata capability. The result is beryllium illuminator opposite carborundum illuminator, weight decreases 35% , inertia decreases 35% . Illuminator design, the biggest deformation and the greatest stress are shown 5 times like the graph. Besides, the confluence of illuminator mounting frame and illuminator model obtained greater progress, that is to say, need not agglutination or outfit clip, because this illuminator and clamp whole treatment are made, secure directly go up in axis of Zhen Jing electric machinery. This result was to reduce quality, improved stiffness and increased heat to conduct function. In addition, the system does not have sub overheat and destructive attaint risk. This design makes illuminator norms parameter is obtained great improve. For instance, the standard carborundum illuminator that compares installation to go up in typical scanning head, final rate can increase 30% , save 20% time. The user can be passed raise rate, or get higher dynamic performance by right of the scanning head of bigger aperture, from the benefit in improving. Scorched area diameter and working space can decrease inside same view dimension, eye shot dimension and working space add below dimension of same perhaps focal distance. Beryllium material satisfies market demand in many sided, shorter new product research and development is for instance periodic, and dimension of illuminator model, illuminator and applied demand can realize essence of life to match definitely. To achieve optimal speed result, illuminator part of one's job does not devise the angle of beam of light that asks with reflection and measure of beam of light. The application of different domain as new application arisen, scanning head manufacturer is facing new requirement, metrology is for instance compositive (pyrometer, camera) , use a requirement in order to if solder,be satisfied with reinforce of polymer outline solder. However, as above, laser of high power and tall brightness will give head of high accuracy scanning to bring a lot of other demands, but it also opened a tradition to make the new market beyond mark application. A lot of application use new technology now, and still be private patent. Nevertheless, traditional even laser beam machining, solder for instance, cut or finishing ask to use scanning Zhen Jing now. For instance, use tall brightness laser but small plate of high speed cut, as a result of weight and reason of inertial quadrature respect, its speed exceeds the limit of system of traditional fixed position. Accordingly, the spare parts locates already by " without inertial " laser light beam locates place is replaced. This treatment craft is called " long-range cut " . Receive application to solder, famous " solder remotely " craft can use robot fixed position and head of high speed scanning to combine means to undertake modification (" 3D scanning solders " ) . Had proved this method can be not laser working hours to decrease almost to 0 (depend on welding line position and structure) . When the robot implements flowing campaign along outline, go to below one from a welding line " jumpy " deviation can pass means of scanning of high speed of scanning head high accuracy to undertake controlling. This " scanning solders " in application, crucial factor is software, it locates the position and robot speed and beam of light of scanning head pilot union rises. Because a large number of is in inside limits of 1 micron wavelengh efficient laser source (for instance laser of high power semiconductor) appear, laser sclerosis craft and laser frit Fu had made the standard technology of machine tool market now. Local concentration can avoid quantity of heat to the spare parts is out of shape and damage, because this can decrease greatly,duplicate the job. For all that, the challenge of laser case hardening is the temperature with apparently good part distributings. Through special optics the system can come true, this optics system undertakes to laser intensity outline " clipping " , but this kind of method is very complex and inflexible. A kind more agile with reasonable solution it is to will stimulate beam of light fast scanning and laser output power dominate photograph union quickly. This kinds of device and pyrometer work jointly, can come true almost any kind temperature distributings and even temperature is controlled. From 90 time metaphase since, laser polymer solders to had made the standard tool of spare parts of car component, machine, electron and consumer goods. It begins with circling solder at first, laser is slow on welding line fast motion. But progressively later evolution gives a variety of different methods, for instance smooth seam welding is received or synchronism solders, had developed for today's advanced technique. The advantage of synchronous treatment (bate is for instance whole solder structure) it is to solder method, wait for that is to say solder the opposite motion of the spare parts can control parameter as the process. Unfortunate is, the geometrical form that synchronous laser beam welding receives requirement laser heat source and figure of welding line geometry are same, this makes this technology very complex, high and not agile. A clever solution is " half, synchronous " solder, light beam of the laser below this kind of means repeats motion on structure of whole welding line, beam of light makes with high speed motion whole welding line heats to softening point over, realize synchronism to solder to nod method control with solder thereby. Because solder,outline can be changed conveniently through software, this method is very accordingly agile. Of course, this method restricts structure of Yu Ping area (or it is approximate plane at least) , scanning area size is inside 400 × 400mm, and laser power can match; In addition, asks speed and laser power can become scale with welding line length. Outside dividing flexibility, because this device used scanning head and the optical system that afore-mentioned alluding, it still allows online process to control. Conclusion carries promotion precision, speed and laser power, scanning Zhen Jing has made a very main tool in laser beam machining. Its market has hit mark and the applied limits that shape quickly to expand the laser material of many domains is machined from the tradition, include cut, solder, finishing, polymer solders and other applying. The mechanical electron of technology of scanning Zhen Jing and innovation designs a concept, use at the new material of lens powder technique and intelligent solution especially, had gotten used to new market requirement. Source of tall brightness laser opened bright tomorrow for scanning Zhen Jingkai. CNC Milling CNC Machining