采用模具集成同步激光焊接技术进行聚甲基丙烯酸甲酯-丙烯腈-丁二烯-苯乙烯传输焊接的实验评价

IF 1.7 4区 工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Laser Applications Pub Date : 2023-10-04 DOI:10.2351/7.0001144
Woo-In Choo, Yoo-Eun Lee, Sungbin Im, Minsun Oh, Dongchoul Kim, Dong Hyuck Kam
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引用次数: 0

摘要

汽车灯具在汽车设计中不仅具有功能性作用,而且具有高度的审美目的。因此,他们使用复杂的三维形状来实现各种设计。主要的制造挑战来自于复杂部件的塑料粘接工艺,目前主要是通过热粘接、超声波粘接和激光焊接来完成。窄接头区域的激光焊接工艺是首选的,因为它们需要最小的接头面积,并且不会产生毛刺。在本研究中,利用特制的束状光纤与二极管激光源连接产生的多个光源,对灯的同时键合进行了优化研究。波长为915 nm,功率为80 W的二极管激光束通过30根光纤束同时传输。纤维被集成在固定灯的模具内,通过重叠的上部透明聚合物PMMA (IF850)和下部不透明聚合物ABS (HL121H)实现传输焊接。研究了激光功率、持续时间、波导间隙和夹紧压力等工艺参数。我们提出了优化的工艺参数,实现了无气孔和相对均匀的熔化。剪切试验中,平均荷载约为1300 N,基片沿焊缝方向出现断裂。
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Experimental evaluation of poly methyl methacrylate-acrylonitrile butadiene styrene transmission welding using mold-integrated simultaneous laser welding technology
Automotive lamps have not only functional roles but also highly esthetic purposes in the design of a car. As such, they use complex three-dimensional shapes to implement various designs. The main manufacturing challenge comes from the plastic bonding process of the complex components, which currently is done by thermal bonding, ultrasonic bonding, and laser welding. Laser welding processes with a narrow joint area are preferred since they require minimal joint area and produce no burr. In this study, an optimization study for simultaneous bonding of lamps is carried out using multiple light sources generated by connecting specially manufactured bundle optical fibers with a diode laser source. The diode laser beams with a wavelength of 915 nm and a power of 80 W, each, were simultaneously delivered through a 30-optical fibers bundle. The fibers were integrated within the mold that holds the lamp achieving transmission welding through the overlapped upper transparent polymer PMMA (IF850) and the lower nontransparent polymer ABS (HL121H). The process parameters investigated were the laser power, duration time, waveguide gap, and clamping pressure. We present optimized process parameters that achieved no pores and relatively uniform melting. In the shear test, the average load was approximately 1300 N, and the base sheet fractures along the welding joints were observed.
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来源期刊
CiteScore
3.60
自引率
9.50%
发文量
125
审稿时长
>12 weeks
期刊介绍: The Journal of Laser Applications (JLA) is the scientific platform of the Laser Institute of America (LIA) and is published in cooperation with AIP Publishing. The high-quality articles cover a broad range from fundamental and applied research and development to industrial applications. Therefore, JLA is a reflection of the state-of-R&D in photonic production, sensing and measurement as well as Laser safety. The following international and well known first-class scientists serve as allocated Editors in 9 new categories: High Precision Materials Processing with Ultrafast Lasers Laser Additive Manufacturing High Power Materials Processing with High Brightness Lasers Emerging Applications of Laser Technologies in High-performance/Multi-function Materials and Structures Surface Modification Lasers in Nanomanufacturing / Nanophotonics & Thin Film Technology Spectroscopy / Imaging / Diagnostics / Measurements Laser Systems and Markets Medical Applications & Safety Thermal Transportation Nanomaterials and Nanoprocessing Laser applications in Microelectronics.
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