Fiber-based materials like fiberglass can be marked with limitations. Tungsten, being slightly lighter in color, requires an annealed mark to achieve proper contrast. The best marking technique depends on the finish of the brass or copper. The Power laser parameter describes the output power of the laser. Nickel Fixed pulsewidth fiber lasers have a damage threshold of about 1mj of energy. Coated and Painted Metal 532nm Green lasers can be ideal as they have less thermal energy transfer and also are better absorbed by a wider range of plastics. Laser Power– The percentage of available power you are utilizing. 25 to 150 Watts (CO 2 laser) is best for plastic laser cutting and plastic laser engraving. You may have to register before you can post: click the register link above to proceed. Each and every XT Laser series is capable of marking on stainless steel and the ideal system for your application depends on your marking requirements. 0000004742 00000 n 4. These are much easier to ablate and will provide great contrast marking. Non-semiconductor ceramics The 532nm Green lasers are also a good choice because they are heavily absorbed and don’t cause a lot of melting. For carbide, because of the darker color it naturally has, getting a contrasting mark is rather easy with even light laser intensity. The 1.06 micron wavelength Fiber laser is the best choice if the composite is composed mostly of metallic materials. Laser marking plastic and metals. Our more powerful fiber lasers come in 20-50 watts, and can easily remove the powder coat and mark the underlying surface. 6. Because of the value of these substrates, engraving and etching are not common. Aerospace applications require heavy fatigue testing to ensure no structural damage is incurred by the titanium part by way of Heat Affected Zones (HAZ), recasting/remelt layers, or micro-cracking. Aluminum is one of the most commonly marked substrates and is used in many industries. This reduces the impact the laser can have on the structural integrity of the material. If the difference between the highest and lowest levels of the workpiece is greater than 0.4 mm (0.016 in) the marking result will be uneven. Difference of 0.5 mm (0.02 in) The 532nm Green wavelength is inherently cooler than that of IR lasers and provides less thermal transfer. To start viewing messages, select the forum that you want to visit from the selection below. Stainless steel lends itself to every laser marking technique used today. 2. 10. Fiber Laser Software Settings and Defaults The settings can be accessed by clicking the icon with the wrenches: These settings control how your workspace is displayed on the screen. The size of the material will impact the size of the field; as a standard size we recommend 1.97 x 1.97 in. The Fiber Laser’s beam quality allows very fine Laser cuts with kerf widths possible of less than 20µm in thin section metals of <200µm thickness (foils). %PDF-1.5 %���� 0000000896 00000 n LMM14 Laser Settings Page 2 of 2 Suggested Laser Settings Used for Beam Steered ND:YAG or Fiber Laser with a 100mm lens Material Power (W) Speed (cm/sec) Hatch Spacing “ CW Mode or Q-Switch Freq Stainless Steel 8 25 .002 CW / ≥50KHz Stainless Steel - Bright Annealed 7 25 .002 CW / ≥50KHz Galvanized Steel 7 15 .002 CW / ≥50KHz There are many types of coatings used to harden or protect metals from corrosive elements. In addition, power consumption is also significantly smaller than that of a CO 2 laser, typically 9% WPE for a CO 2 vs >35% for a fiber laser ( YLS-ECO Series lasers have wall-plug efficiencies exceeding 45%). Our more powerful fiber lasers come in 20-50 watts, and can easily remove the powder coat and mark the underlying surface. Learn how to use portable fiber laser marking machine. Non-semiconductor ceramics come in a variety of shapes and forms. Along with the thermal benefits of the 532nm laser, increased absorption allows for less intense laser settings, which helps with precision depth control. 2. Fax：+83-531-81180745 In laser material, very soon after we 'pump' the electron to a higher state, it slides down to a slightly lower meta-stable state. The UM-1 provides plenty of power to remove or ablate thinner coatings. Because of this, a 20 watt fixed pulsewidth fiber laser is not allowed to work at pulse frequencies lower than 20 KHz. What are the tips to choose best fiber laser cutting machines? xintian104@xtlaser.com, ADD：No. %%EOF Laser material has to have a meta-stable state corresponding to a useful energy. Accuracy is required to ensure proper placement and readability of markings that are commonly smaller than 1mm in size and read by vision systems. It may not be ideal for removing a powder coat but it can easily mark a powder coat. Medical instruments are annealed, etched or engraved depending on the intended lifecycle and use of the implement. Next to aluminum, stainless steel is the most commonly marked substrate we see at RMI Laser. 0000011761 00000 n Also, these marked parts or tools must be approved by the FDA to ensure that they are truly inert and safe for their intended use. The software will process the Marking Sequence in order and therefore set the mark settings, then mark objects below at those settings until a different mark setting tool is encountered. Higher wattage lasers can etch or engrave more quickly, but the lower wattage UM-1 laser can perform the same markings with an extended cycle time. ⑸ The wavelength of the optical fiber laser is 1.06μm, is more easily absorbed by the metal material compared with the wavelength of CO 2 which is 10.6 μm and is especially beneficial for sheet metal cutting. and therefore some user testing and experimentation is required. 70x70 or 100x100 are the options available. Engrave Vector (speed/power) Engrave Raster (speed/power) Cut (speed/power) Acrylic Clear 3mm. Metals that are thick will require more heat energy and a slower speed setting. When laser stain marking, there are a couple of considerations which greatly affect the outcome. Outside of certain materials (say, 0.5-in.-thick or greater stainless or aluminum) a fiber laser beam cutting with nitrogen can focus almost anywhere in the material thickness—be it near the surface, in the middle, or near the bottom—and the beam won’t lose the cut. The most common technique in plastic and polymer marking is color changing. Recommended Power Settings for Material Test. Anneal or polish to protect the plating. Lens Focal tolerance (arrow) In a Speedy 100 fiber or Speedy 300 fiber, the focal tolerance is approxi- mately ±0.15 mm (0.006 in). Each and every XT Laser series is capable of marking on plastics and polymers, the ideal system for your application depends on your marking requirements. For the medical industry, most titanium parts are actually placed inside of the human body permanently, or for surgical tools which will be used inside of the human body. These lasers have lightning fast pulse durations resulting in less heat on the material. 0000003293 00000 n 0000001448 00000 n Because plastics and some polymers are soft and can burn while marking, Nd: YVO4 or Nd:YAG may be your best bet. The aerospace industry uses annealing to limit structural damage. Fiber Lasers use a optical fiber and use a rare earth medium like neodymium, thulium, erbium, ytterbium, dysprosium, praseodymium, or holmium to make the laser more powerful. Fiber Laser Compatible Materials Ablation is the most common marking technique for anodized aluminum, but some cases call for etching or engraving. This lightweight super alloy is used heavily in medical and aerospace applications because of its strength, durability and limited mass. Each and every XT Laser series is capable of marking on fiberglass and carbon fiber and the ideal system for your application depends on your marking requirements. Titanium lends itself to all marking techniques but the best laser and technique depend on the application. Our fiber lasers can ablate, etch and engrave coated metals. It may not be ideal for removing a powder coat but it can easily mark a powder coat. Material DPI/Freq. H�\�͎�@�=OQ��E�n��$�������d�y ��!� .|���1�ɘ(�˗#T��mw}7���xi�qrǮo�x���&�C. Nickel is commonly used as plating. We have found that lower powered, faster pulsing lasers yield the best results. The 532nm lasers are capable of marking directly onto printed circuit boards without exposing the underlying copper layer. Brass and copper have high thermal conductivity and thermal transfer properties and are used commonly for wiring, printed circuit boards and pressurized flow meters. Gold can be very easy to mark, requiring little power to get a good, contrasting anneal. Simply drag the Mark Setting object above the markable objects which require those mark settings. 0000014410 00000 n Power. 12. 0000007262 00000 n For example, if I run a 20 watt fiber laser at 50% power setting in my software, I am running at approx. We recommend you have test sampling done to determine the best marking technique to apply to your ceramic material. 0000003180 00000 n We provide you with two different parameters for each Trotec laser materials group: One optimized for … All these parameters are provided as a general guideline and should serve as a good starting point. Typically, with lighter marking intensity, aluminum will turn white. Some coatings, such as powder coat, are thicker and require more intense laser settings to completely remove. Etching and engraving are also easy, because the steel is absorbent and is good enough at thermal transfer to help mitigate damage. 0000010705 00000 n There is a wide range of materials used in the semiconductor industry. 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