PDF Remote laser cutting in carbon fibre reinforced polymers is a promising machining technology, which can reduce the main drawback in laser cutting, Find, read and cite all the research Analysis of process-induced damage in remote laser cut The material is cut using three different high-power laser sources:a pulsed Nd:YAG laser, a disk laser and a CO2 laser. Appropriate cutting parameters have been found, and the results in cut
May 12, 2021 · Riveiro et al. investigated into CO 2 laser cutting of carbon fibre-reinforced plastic (CFRP) composites. They assessed the cut quality in terms of kerf width, perpendicularity of cut and HAZ. Then, they concluded that the laser cutting of CFRP is difficult due to the different physical properties between the carbon fibres and the epoxy matrix. DAMAGE PROPERTY CORRELATION AFTER LASER Keywords:CFRP, laser cutting, degradation, properties Abstract Laser cutting as contactless machining processes would reveal several advantages compared to mechanical machining. The remote technology with high-speed beam deflection systems and high beam quality can realise high cutting rates of CFRP. The present work presents Effect of lay-up configuration and processing parameters Experimental data is presented relating to heat-affected zone (HAZ) and surface quality when using continuous wave (CW) fiber laser cutting carbon fiber reinforced plastic (CFRP) with varying configurations including + 45°/ 45°, 0°/90°, and plain woven. The effect of typical cutting parameters including laser power, cutting speed, and assist gas pressure on laser cutting quality of
Aug 14, 2020 · ABSTRACT:Remote-laser beam cutting is a productive technology without tool wear. Especially when cutting carbon fiber reinforced polymers (CFRP), it offers constant manufacturing quality. Since it is a thermal process, a heat-affected zone (HAZ) is formed at the edge of the cut. Influence of the edge quality to the water sorption of 2.1 Properties of CFRP samples and their storage in a water bath The material used for the tests was CFRP with non-woven unidirectional plies. For remote laser cut and waterjet cut samples the stacking sequence was [0/90 2/0] S. In contrast, the stacking sequence of the milled specimen was [0 2 /90/0] S Optimising process efficiency during remote laser cutting A double-scan-head was developed combining two pairs of galvo-mirrors into one device. One pair controls the laser beam's position, while the other in this setup is used for a pyrometer. Thus, a pyrometer's optical path can be controlled independently from a laser's path as well as being locked to the same geometrical path during CFRP processing.
Surface enhancement of components is vital for achieving superior properties in a composite system. In this study, carbon nanotubes (CNTs) were grown on carbon fiber (CF) substrates to improve the surface area and, in turn, increase the adhesion between epoxy-resin and CFs. Nickel (Ni) was used as the catalyst in CNT growth, and was coated on CF sheets via the electroplating method. Surface Remote Laser Cutting of CFRP:Improvements in the Cut This paper presents detailed new studies on remote laser cutting of CFRP focusing on the influence of the material properties and the quality of the cut surface. The wide range of chemical and Remote laser cutting of near-net-shape & fiber-reinforced Jul 05, 2013 · The laser configurations result in average cutting speeds between 0.013 m/min on 4 mm endless fiber-reinforced CF epoxy resin sheets with measured HAZs of only a few hundred micrometers. FIGURE 2 shows comparable cross sections accomplished with gas-assisted laser cutting (left) and high-power CW remote cutting (right).
Aug 14, 2020 · Based on quasi-static and cyclic mechanical tests on open-hole specimens, the influence of the process on the mechanical properties of CFRP is shown. The quasi-static tests are in good correlation with results from other researchers by indicating an increase in the maximum tensile stress of the test specimens, cut by remote-laser. The mechanical properties of carbon fiber reinforced Aug 21, 2019 · The influence of laser radiation on the mechanical properties of carbon fiber reinforced polymer (CFRP) composite materials was carried out. The results showed that laser treatment of CFRP leads to a decrease of less than 7% of the strength properties of the materials. X-ray Computer Tomography (XCT) of Fatigue Damage in The CFRP was cut using two different-type of lasers; a CO2 gas laser and a single-mode fiber laser, an abrasive water-jet and a conventional mechanical tool. The mechanical cutting specimen
Jul 01, 2021 · The composite specimens were machined into rectangular specimens by mechanical milling. The holes were, then, either remote-laser cut or milled. For the remote-laser cutting, a single mode Yb:YAG fiber laser (IPG 5000-SM) was used in a CTI Lightning II scanning system. The beam properties of the laser are reported in Table 1. Laser cutting was conducted by focusing the beam in Mechanical Properties of Remote-Laser Cut CFRP and Based on quasi-static and cyclic mechanical tests on open-hole specimens, the influence of the process on the mechanical properties of CFRP is shown. The quasi-static tests are in good correlation with results from other researchers by indicating an increase in the maximum tensile stress of the test specimens, cut by remote-laser.