Glass, pottery and porcelain reachs the laser small treatment of sapphirine

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Glass, sapphirine and pottery and porcelain are the data that uses generally at small processing technique and careful treatment. However, they brought more and more challenges to traditional workmanship, this kind of challenge also gives exceeded short pulse laser formidably to gain more opportunity. The attribute with these high grade material is indispensable to a lot of products: Glass uses the indication screen of the smartphone that make, indication screen is having the case of steel; Pottery and porcelain is hard, chemistry is stable, can use component of the electron that make and circuit substrate, and electric dielectric. Sapphirine is extremely hard, be able to bear or endure cut, suit to be used at semiconductor and LED technology. But glass, pottery and porcelain, have with sapphirine be nodded jointly even if machine very hard. Because they are brittle and it is adamant material, they are challenging mill, auger, grind the limit that waits for traditional workmanship. The cutting tool when processing these data wears away fast, and had needed link of a few treatment just can get enough good treatment quality. On hard, brittle material light beam of laser of use laser light beam is in hard, brittle material can show a favorable result particularly. They won't wear away and can focusing arrives the smallest diameter. Scanning Zhen Jingneng locates neatly beam of light, the treatment that can satisfy all sorts of appearance outline almost needs. Exceed short pulse laser (graph 1) suit to process brittle data particularly. To be less than the laser pulse of 10 skins second, before heat conducts circumjacent material to go up, the material of region of the work area that be added already vaporization. Want laser parameter to be adjusted accurately only match with application, so do not need do poorly done work over again. Graph the industry that the 1 outstanding character that develops laser to will exceed short arteries and veins applies tall productivity to ask is made in, fast increased light of leather second laser in proportion implement the output power of TruMicro 5000. Right visible light and close for the light inside infra-red spectral limits, a lot of resemble glass such broadband is unoccupied place dielectric is pervious to light. However, the leather second pulse of high strenth can pass much photon ionization to produce free electron. A large number of successive ionization release charge carrier further, these charge carrier can destroy the chemical bond in material, achieve the goal of ablation material finally. When low hot input avoids to produce break to should process brittle data, avoiding to produce small break is the challenge that often should encounter, these small interstitial conferences weaken the intensity of component. Producing an interstitial account is exceeding quantity of heat entered component. Quantity of heat brings about material to expand, accelerated break generate. Machine what strategy can avoid small flaw appropriately to form. This includes essence of life to define treatment parameter definitely among them, if jackknife of pulse energy, pulse is spent, repeat diameter of frequency, focus and time of laser beam machining. Optimal work place depends on the material, requirement that machines appearance, handling time and quality, try to affirm through come true experiment. The Trumpf company that is located in German south Ditizingen and Germany western the institute of Fraunhofer laser technology of Aachen begins associated research, developed to optimize the theoretical foundation of effect of material of brittleness of laser beam machining. Different level is usable will assess quality: The flexural strength of component (rupture with what will measure material intensity, interstitial meeting makes rupture intensity is reduced) , cut brim surface roughness and brim vision effect. The circumstance of cut brim can pass optical microscope and electron microscope of scanning of have the aid of to measure. (graph 2) graph the image of scanning report lens of the sapphirine small structure of 2 laser beam machining pursues the common method that glass of cut of laser of second of 3 use skins measures component flexural strength was at 4 o'clock the test that fold a turn (Cf.

DIN EN 843-5) . With two cylinder sample undertakes the experiment to machining outline certainly prop up and locate. Additionally two cylinder are opposite with fixed rate appearance ceaseless thrust augmentation, be broken off till it. The pressure that destroys time place is measured, rupture the form that intensity can adopt component is unit computation to reach with million handkerchief. Although the generation of small break and they are right,rupture the influence of intensity is met because of different component different, but can explain through Weibull statistic law. Normally for, choose 10-15 by treatment appearance will undertake was foldinged at 4 o'clock bending a test. Graph 4 it is to use a mobile phone glass that exceeds cut of short pulse laser quickly to show face plate (" Corning Eagle XG " ) Weibull distributinging graph. Of 10% rupture the characteristic value of the flexural strength that possibility happening dot can regard component as. Different treatment method can undertake comparative through this kind of means. Nextpage pursues 4 use a mobile phone glass that exceeds cut of short pulse laser quickly to show face plate (" Corning Eagle XG " ) Weibull distributinging graph. The destruction that component fights the character that loses strength to be worth a correspondence is led for 10% . Those who machine aggrandizement glass smartphone is arisen the value that increased indication hold. Intelligent feeling displays screen (feeling screen) had surmounted mobile phone clavier to become the mainest user interface. Typical smartphone includes 4 glass tablet: Two go up in indication screen, contain filmy transistor and liquid crystal material; Provide feeling function together; Still cover board of a chemical toughened glass protects ground floor to avoid at cut, pound injury and dirty content. Because the user wants the smartphone with light, small a rope for towing a boat, smaller vitreous face plate is used. Typical glass shows face plate is 0.

3 millimeter are thick; Cover board of chemical toughened glass 0.

7 millimeter are thick. This makes conventional cut technology reached the limit. Cutting wheel has not suited to machine this kind of glass, because they pass special chemical aggrandizement processing, and milling treatment needs many and abrade the do poorly done work over again that goes up with polishing works. The exceeds as it happens of short pulse laser to be able to be used at this kind of material treatment of wavelengh of infra-red He Luguang. Leather second pulse can reduce interstitial generation, cut quality exceeds common milling treatment far. Laser light beam has swept cut of implementation be cominged to by treatment material for many times. Speed, the angle of brim quality and brim can be decided by treatment strategy. Opposite at other laser technology, ablation craft is more reliable: For example, slight metabolic glass does not affect treatment result. In the test, use laser of second of green smooth skin, "Corning Eagle XG " flexural strength amounts to 280 million handkerchief. The test that uses laser of infra-red skin second shows rate increases 3 times as a result, the flexural strength of the brim slightly low. More powerful leather second laser makes we have greater opportunity to improve the efficiency that machines glass. This kind of opportunity when we compare the ablation speed of rolled steel and glass and treatment efficiency particularly apparent. (graph 5) the reason as a result of plasma screen, the ablation efficiency of rolled steel begins to reduce when the pulse energy density of 5 J/cm2, and glass allows higher pulse energy density, till treatment efficiency is achieved highest. When should machining glass accordingly, higher pulse energy is OK the ablation efficiency with taller translate into. Graph 5 go up graph: The ablation speed of rolled steel begins to drop from the discharge of 5J/cm2; Lay a plan: Ablation speed of glass was not reduced from higher discharge density. Accordingly, higher pulse energy can improve the efficiency of treatment. When the consideration reduces vitreous weight and thickness further, people may use ultrathin glass. The vitreous processing with 50 thick micron rises more delicate, more sensitive also to machining. In fact, such glass need not laser will machine had been impossible. The sapphirine sapphirine that applies to any stubborn cases is diamond is next to on the earth the 2nd hard data, the method that uses machine very hard will machine. Use laser comes the standard that cut sapphirine is current LED manufacturing industry machines a method, sapphirine uses as here substrate underlay. Because its resist cut,the gender is mixed pervious to light quality, sapphirine can produce the protective lens range of watch and telescope with a future life. When machining petty outline, exceed short pulse laser to be able to realize the treatment with standard essence. Mix when cut circle component for example when drilling small hole, flexible outline treatment can come true through high speed scanner. Exceed short pulse eliminate the hot influence when treatment, produce wonderful cut brim quality thereby. Graph 6 showed 0.

The circle with 4 large millimeter, square and triangular outline, laser of infra-red skin second cuts use TruMicro 5070 to come down from the cut on sapphirine. Dimension of the least rough sketch is 0.

2 millimeter. With the intelligence that exceeds union of short pulse photograph treatment means can avoid to form breach and craze. Experience makes clear the 100 pulse energy of small anxious left and right sides is first-rate. For example, it is pulse energy 250 small anxious laser light beam divides two 125 small anxious independent laser light beam machines two component to be able to obtain higher yield at the same time. Outstanding treatment quality depends on treatment method, remove dust and between workpiece clamping apparatus cooperate aptly. Nextpage pursues 6 circles, square and triangular outline, 0.

4 millimeter are thick, use laser of infra-red skin second " TruMicro 5070 " from sapphirine cut comes down. Pottery and porcelain -- wear-resisting, high temperature resistant project pottery and porcelain is via often can be being used at exposing on the component of high temperature or requirement wear-resisting caustic. In a lot of application, very tall to the insulating property requirement of material. For example, project pottery and porcelain is used at the PCB material of chip of the sensor in automobile industry, use at the data of wear-resisting caustic reserve of oil pump, or material of the nozzle in be being used at food industry. Material of the commonnest project pottery and porcelain has alumina, nitrogen changes aluminium and zirconia. Laser suits to be on thin pottery and porcelain very much bore, cut or structural processing. For example, use infra-red it is OK to exceed short pulse laser in order to be as high as 10 millimeter / the rate cut of the second 0.

The zirconia with 3 thick millimeter board. Exceed short pulse to be able to produce a life to slip, flawless cut brim. In view of the focusing character that exceeds short pulse to arouse Guang Rui interest, they special apply to stiletto: Can be in 0.

The alumina with 5 thick millimeter and nitrogen convert the hole that a diameter drills to be 60 micron on aluminous pottery and porcelain (graph 7, 8, 9) . Stiletto speed can amount to every second 20 aperture. Delimiting piece - in the craft of lobation, laser Cutting arrives the 1/3 ply of material, use mechanical means lobe of a leave next, speed can amount to 50 millimeter / second. Graph chip of pottery and porcelain of alumina of 7 laser bore pursues 8 nitrogen melt aluminium, ply: 500 μ M, internal diameter: 60 μ M pursues 9 go up in alumina Laser Cutting is efficient, the laser illuminant of high power falls in the premise that achieves treatment quality requirement, producing can be industry makes a medium critical variable. The industry that applies tall productivity to ask to will exceed the outstanding character of short pulse laser is made in, fast increased light of leather second laser in proportion implement the output power of TruMicro 5000. New-style TruMicro 5070 and TruMicro 5270 are power respectively 100 made of baked clay glow and laser of second of 60 made of baked clay green smooth skins, arteries and veins is wide it is in 10 skins second. Be based on the technology of laser power enlarge of disc type, can reduce laser to heat up lenticular effect mediumly in medium, gain quality of good beam of light and higher laser power. Because all connecting,exceed short pulse laser quickly to have dual class power adjustment characteristic, treatment effect can repeat implementation below all sorts of circumstances. The exterior adjustment outside amplifier module can adjust pulse energy and frequency, this ensured character of beam of light won't suffer the effect of the change of laser parameter. CNC Milling