Laser assisted joining of St12 to polycarbonate: Experimental study and numerical simulation

Meiabadi, Mohammad Saleh; Kazerooni, Afshin; Moradi, Mahmoud; Torkamany, M.J.

doi:10.1016/j.ijleo.2019.164151

Cited by 12 publications

(2 citation statements)

References 17 publications

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“…LMP methods are beneficial for different industrial applications. For example, laser welding, laser surface hardening, laser drilling, laser additive manufacturing, laser engraving, laser forming, laser machining, and laser cutting are some of the useful applications of the laser technologies [3][4][5][6][7][8][9][10][11]. In the well known laser cutting process, by focusing the laser beam on a particular point, the material is cut off by the laser.…”

Section: Introductionmentioning

confidence: 99%

Post-Processing of FDM 3D-Printed Polylactic Acid Parts by Laser Beam Cutting

et al. 2020

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In this paper, the post-processing of 3D-printed poly lactic acid (PLA) parts is investigated. Workpieces are manufactured by fused deposition modeling (FDM) 3D printing, while they may have defects in some areas such as edges. A post-processing is introduced here for 3D-printed samples by low power CO2 laser. The thickness of the FDM samples are 3.2 mm and printed by optimum conditions. Effects of process parameters such as focal plane position (−3.2–3.2 mm), laser power (20–40 W), and laser cutting speed (1–13 mm/s) are examined based on the design of experiments (DOE). Geometrical features of the kerf; top and bottom kerf; taper; ratio of top to the bottom kerf are considered as output responses. An analysis of the experimental results by statistical software is conducted to survey the effects of process parameters and to obtain regression equations. By optimizing of the laser cutting process; an appropriate kerf quality is obtained and also optimum input parameters are suggested. Experimental verification tests show a good agreement between empirical results and statistical predictions. The best optimum sample with 1.19 mm/s cutting speed, 36.49 W power and 0.53 mm focal plane position shows excellent physical features after the laser cutting process when 276.9 μm top and 261.5 μm bottom kerf width is cut by laser.

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Section: Introductionmentioning

confidence: 99%

Post-Processing of FDM 3D-Printed Polylactic Acid Parts by Laser Beam Cutting

et al. 2020

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“…They both found insufficient melting of the CFRTP composite at low temperatures and bubbles from thermal decomposition at high temperatures. Based on these studies, it was proven that laser direct joining can be improved by the interfacial temperature control, which ranges between the melting and thermal decomposition temperatures of the polymer matrix [31]. Meanwhile, it is also important to increase the interfacial bonding area of the CFRTP composite to the metal.…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature Distribution on Interfacial Bonding Process between CFRTP Composite and Aluminum Alloy during Laser Direct Joining

Wang,

Fu,

Wang

et al. 2023

Applied Sciences

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Laser direct joining enables non-destructive and lightweight joining of carbon fiber reinforced thermoplastic (CFRTP) composites and aluminum alloys. The interfacial bonding process determines the joint performance and is influenced by the time-varying temperature distribution. However, the interfacial bonding process occurs inside the joint, making it difficult to study the effect of temperature distribution. To resolve this issue, a novel online observation device for the interfacial bonding process between CFRTP composites and aluminum alloys is design, and the polymer melting, flowing, and bonding with metal during laser direct joining are observed. Further, temperature field simulation models for laser direct joining are established, and temperature distribution and gradient are calculated. The results show that the temperature distribution determines the melting of CFRTP composites, and bubbles generated by the thermal decomposition of the polymer hinder the melting. The temperature gradient is related to the movement of the molten matrix and fibers, and the movement towards the aluminum alloy induces cracking and delamination. Once the interface is filled with polymer, the motion changes to along the laser scanning direction and the joining defects are reduced. The study can provide a foundation for promoting interfacial bonding and reducing the defects of laser direct joining.

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Novel advancements in additive manufacturing of PLA: A review

Odera,

Idumah

2023

Polymer Engineering & Sci

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Three‐dimensional (3‐D) printing technology (3‐DPT) also referred to as additive manufacturing (AM) has advanced rapidly and is vastly used in varying manufacturing fields because of the minimization of waste materials and the ability to form complex geometrical shapes from micro‐ to macroscale. Nowadays, additive manufacturing (AM) has emerged extensively in varying engineering, architectural, medical, industrial, and manufacturing fields. Four‐dimensional (4‐D) printing technology (4‐DPT) synergizes 3‐DPT with stimuli‐sensitive materials and has garnered wide attention for smart additive fabrication. More so, 4‐DPT has displayed great prospects in numerous engineering applications including origami actuators, drug transport, robotics, smart clothing, and adaptive metamaterials. Hence, this elucidation presents recent advances in PLA additive manufacturing (3‐DPT) and applications. Insight into 4‐DPT is also presented.

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Laser assisted joining of St12 to polycarbonate: Experimental study and numerical simulation

Cited by 12 publications

References 17 publications

Post-Processing of FDM 3D-Printed Polylactic Acid Parts by Laser Beam Cutting

Post-Processing of FDM 3D-Printed Polylactic Acid Parts by Laser Beam Cutting

Effect of Temperature Distribution on Interfacial Bonding Process between CFRTP Composite and Aluminum Alloy during Laser Direct Joining

Novel advancements in additive manufacturing of PLA: A review

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