A study of laser surface treatment in bonded repair of
Mar 21 2018 · The laser pretreatment patch was an automated process. We just tore off the peel ply from the laminate to show up the top-layer epoxy resin then put the samples on the operations area to activate the surface by adjusting the laser parameters. Laser ablation of CFRP parent laminates was accomplished through Nd YAG laser equipment of Inno Laser
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Comparison of novel surface treatments of Al 2024 alloy
Dec 01 2020 · The difference between the three levels of laser scanning speed is highest delta value as 4.31 compared to other fiber laser parameters such as laser frequency and laser power. Of all the samples produced with different parameters by fiber laser the samples with high overlap ratio reached statistically higher shear strengths which caused the
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The Advantages and Disadvantages of Waterjet Cutting
Jul 02 2016 · Advantages of Waterjet Cutting. Use of "green technology"The waterjet cutter does not create any hazardous waste and with a small kerf it also facilitates the recyclability of scrap metal. The cutter thanks to a close-looped system uses very little water. Cuts almost any materialWhen compared to other cutters the waterjet
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Carbon FiberLaser Cutting and Marking Carbon Fiber ULS
Carbon fiber which is also known as Carbon Fiber Reinforced Polymer or CFRP consists of long strands of carbon reinforcing material typically woven together to form a fabric and then bound together by a polymer matrix material. Laser cutting carbon fiber can be done with either a CO 2 laser or a fiber laser but the highest quality cut is
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Marking and Engraving Coherent
Benefits of laser marking and engraving in comparison to other traditional marking technologies are multifold. The processes are non-tactile and do not induce mechanical stress. It is a very flexible basically maintenance free process and the results are very precise and sustainable marks on a large variety of materials.
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PolycarbonateWikipedia
extrusion with cylinders into sheets (0.5–20 mm (0.020–0.787 in)) and films (below 1 mm (0.039 in)) which can be used directly or manufactured into other shapes using thermoforming or secondary fabrication techniques such as bending drilling or routing. Due to its chemical properties it is not conducive to laser-cutting.
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Momentum and velocity of the ablated material in laser
Feb 22 2013 · The automation in fabrication of CFRP (carbon-fiber-reinforced plastics) parts demands efficient and low-cost machining technologies. In conventional cutting technologies tool-wear and low process speeds are some of the reasons for high costs. Thus the use of lasers is an attractive option for cutting CF-preforms. A typical effect degrading the quality in laser cutting CF-preform is a bulged
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Fibre laser material processing of aerospace composites
Sep 27 2018 · At present three laser systems are being seriously considered by the industry for applications such as drilling cutting and milling operations on CFRP. They are Pulsed TEA-CO 2 DPSS UV and fibre laser systems. This paper investigates laser cutting and laser milling of CFRP and the machining strategy for cutting CFRP and GFRP using a fibre laser.
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High-power UV lasers for precision micromachining
A comparison of bonding strength results for mechanical and laser micro-abrasion processes of CFRP is shown in FIGURE 3. The samples cleaned and textured with a high-power Quasar UV laser exhibit increased lap shear strength and reduced degradation of shear strength after aging than untreated and mechanically abraded samples. 2 FIGURE 3.
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Investigation of cut quality in fiber laser cutting of CFRP
May 01 2019 · Fiber laser cutting of CFRP sheets was investigated using a 2 kW multi-mode fiber laser focusing on how the cut quality factors such as kerf width kerf depth matrix evaporation width matrix recession width kerf taper angle matrix damage zone and cut surface morphology change as laser power laser scanning speed and the number of laser passes are varied.
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Quasar® Hybrid Fiber LaserSpectra-Physics
Li-ion Battery Foil Cutting Using Pulsed Green Lasers (526.9 kB PDF) UV Laser Texturing of CFRP (479.3 kB PDF) High Quality Li-ion Battery Cell Manufacturing (439 kB PDF) Through-Glass Via Drilling with a UV Laser Source (467.1 kB PDF)
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OSA Heat accumulation during pulsed laser materials
Laser materials processing with ultra-short pulses allows very precise and high quality results with a minimum extent of the thermally affected zone. However with increasing average laser power and repetition rates the so-called heat accumulation effect becomes a considerable issue. The following discussion presents a comprehensive analytical treatment of multi-pulse processing and reveals
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High-Efficiency Laser Processing of CFRPLaser Chirp
Apr 22 2014 · The comparison with the experimental data points collected from various literature proves the validity of the model. It is also seen that it seems to be easy to create more damage than necessary. However in addition the calculations give an optimum intensity range for laser processing of CFRP shown as green area.
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Solid State Lasers for laser cutting laser welding
Sapphire LasersContinuous wave lasers available in free space fiber pigtailed and single frequency versions from 458 nm to 594 nm up to 500 mW. Verdi LasersPowers up to 20 W at 532 nm. Compass 115MContinuous wave green lasers from 5 mW to 20 mW. AzureThe Azure Azure NX deep UV lasers are compact low-noise CW 266 nm sources for
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A review on direct assembly of through‐the‐thickness
Dec 22 2018 · The main advantages of VARI compared with other assembly methods are 92 94 (1) initial capital investment of an autoclave is eliminated (2) simpler cold fiber storage management systems are required in comparison with pre‐impregnated fibers (prepregs) (3) shelf‐life constraints are eliminated (as observed for prepregs assembly) (4
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The Advantages and Disadvantages of Waterjet Cutting
Jul 02 2016 · Advantages of Waterjet Cutting. Use of "green technology"The waterjet cutter does not create any hazardous waste and with a small kerf it also facilitates the recyclability of scrap metal. The cutter thanks to a close-looped system uses very little water. Cuts almost any materialWhen compared to other cutters the waterjet
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Mechanical Property and Joining Characteristics of Laser
the lap joints produced by laser joining of CFRP plate to PET sheet. Table 1 Comparison of temperature data measured at melted zone Laser power (W) Maximum Temperature (℃) 60 203 80 215 100 257 110 314 125 451 150 524 200 580 Fig. 1 Schematic experimental setup of laser direct joining of CFRP to PET and laser joining process by cw diode
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High-Brightness Solid-State Lasers for Compact Short
Oct 29 2015 · The kW picosecond thin disc laser demonstrated its applicability in the cutting application of a 2 mm CFRP with a high cutting speed of 0.9 m/min and smaller thermal damage less than 20 μm. These lasers such as fiber InnoSlab and thin disc have been proving solutions for high beam quality short-pulse generation in the high average power
Get PricePart Traceability 5 Big Automotove Trends MECCO Blog
Jul 26 2018 · High-powered laser marking equipment such as fiber lasers have the capabilities to mark on strong hard surfaces. On the pin marking side you would need a bigger harder hitting stylus like that on a heavy-duty N-34 dot peen marking equipment that s ideal for deep part marking applications.
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The Advantages and Disadvantages of Waterjet Cutting
Jul 02 2016 · Advantages of Waterjet Cutting. Use of "green technology"The waterjet cutter does not create any hazardous waste and with a small kerf it also facilitates the recyclability of scrap metal. The cutter thanks to a close-looped system uses very little water. Cuts almost any materialWhen compared to other cutters the waterjet
Get Price
Carbon FiberLaser Cutting and Marking Carbon Fiber ULS
Carbon fiber which is also known as Carbon Fiber Reinforced Polymer or CFRP consists of long strands of carbon reinforcing material typically woven together to form a fabric and then bound together by a polymer matrix material. Laser cutting carbon fiber can be done with either a CO 2 laser or a fiber laser but the highest quality cut is
Get Price
IMPROVING THE DYNAMICAL BEHAVIOUR OF A LASER
produced in the optical cutting laser beam cannot overpass 0.018 . For the new composite sandwich framework proposed in this work having CFRP outside layers and a polyester foam core a maximum deviation of 0.017 was obtained for the optical cutting laser beam which fulfils the design requirement.
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Multi-pass thin-disk laser amplifier generates record
Furthermore the pulse peak power is very high in comparison to other laser systems with output powers in the kW-range. This combination will allow a very high productivity for ultra-precise laser materials processing e.g. cutting of carbon-fiber-reinforced-plastics (CFRP).
Get PriceExchangeable Bases for Rapid Prototyping of Carbon Fiber
cars the focus in this paper is therefore on CFRP cavities. A rectangular hole was cut into the cavity oor by water jet as laser cutting is not suitable for CFRP. The holes placed along the cutout t the ones in the bases as is depicted in Fig. 4. Waterjet cutting caused delamination on some holes but for
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Online-Thermography an efficient tool for optimization of
only an IR camera is needed since the ablation laser can also be used as excitation source. 1. Methodology 1.2 Concept and work flow The process of flying-spot thermographic testing 2 and laser ablation is performed in the following way 1. The damaged CFRP part is scanned with a defocused laser spot with low laser
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(PDF) Numerical Simulation of Laser Beam Cutting of Carbon
Numerical Simulation of laser beam cutting of carbon fiber reinforced plastic (CFRP) is performed. It is important to understand the mechanism about generation of heat-affected zone (HAZ) in order
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IMPROVING THE DYNAMICAL BEHAVIOUR OF A LASER
produced in the optical cutting laser beam cannot overpass 0.018 . For the new composite sandwich framework proposed in this work having CFRP outside layers and a polyester foam core a maximum deviation of 0.017 was obtained for the optical cutting laser beam which fulfils the design requirement.
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Mechanical Property and Joining Characteristics of Laser
the lap joints produced by laser joining of CFRP plate to PET sheet. Table 1 Comparison of temperature data measured at melted zone Laser power (W) Maximum Temperature (℃) 60 203 80 215 100 257 110 314 125 451 150 524 200 580 Fig. 1 Schematic experimental setup of laser direct joining of CFRP to PET and laser joining process by cw diode
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The Advantages and Disadvantages of Waterjet Cutting
Jul 02 2016 · Advantages of Waterjet Cutting. Use of "green technology"The waterjet cutter does not create any hazardous waste and with a small kerf it also facilitates the recyclability of scrap metal. The cutter thanks to a close-looped system uses very little water. Cuts almost any materialWhen compared to other cutters the waterjet
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