Article
Chemistry, Physical
Debajyoti Bhaduri, Tina Ghara, Pavel Penchev, Soumitra Paul, Catalin Pruncu, Stefan Dimov, David Morgan
Summary: A novel LP strategy was proposed to improve the re-melting of aluminium alloys by introducing a thermally insulating ceramic baseplate, resulting in significant reductions in surface roughness and residual stresses. The study highlights the importance of controlling heat dissipation in laser polishing of thermally conductive materials to achieve desired surface integrity properties.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Coatings & Films
Andrea El Hassanin, Muhannad Ahmed Obeidi, Fabio Scherillo, Dermot Brabazon
Summary: This study explored the possibility of using a CO2 laser for surface polishing of metal Additively Manufactured parts made by Laser-based Powder Bed Fusion. The experiments conducted on vertically built samples showed a significant reduction in surface roughness and an increase in hardness due to changes in microstructure.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Nan Li, Peixun Fan, Qiuchi Zhu, Bai Cui, Jean-Francois Silvain, Yong Feng Lu
Summary: This research focuses on using femtosecond laser polishing to post-process the surfaces of additively manufactured parts. The challenge of removing three levels of roughness was identified and addressed. By fine-tuning the laser power, control over the submicron surface features and the final achievable surface roughness was achieved.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Julio Garrido, Diego Silva, Juan Saez
Summary: This article proposes an extended STEP-NC model for stone cutting and demonstrates how modern technological resources can speed up the implementation of STEP-NC numerical controllers. Additionally, it suggests a mixed and flexible approach for machine automation based on STEP-NC, allowing different strategies to coexist during the execution of machining files.
Article
Chemistry, Analytical
Markus Hofele, Andre Roth, Jochen Schanz, Johannes Neuer, David K. Harrison, Anjali K. M. De Silva, Harald Riegel
Summary: This study introduces a new approach to laser polishing by modulating laser power, resulting in different surface roughness levels. Multiple laser polishing passes can further reduce surface roughness and improve roughness homogeneity.
Article
Chemistry, Physical
Wenzheng Wu, Jiaqi Wang, Qingping Liu, Haicheng Xiao, Xuechao Li, Yiming Zhou, Haiming Wang, Aodu Zheng, Ji Zhao, Luquan Ren, Guiwei Li
Summary: In this study, metallic superhydrophobic internal surfaces were prepared using selective laser melting technology and biomimetic prototypes. A complex superhydrophobic square tube with excellent performance was successfully prepared through a series of processing steps, confirming the feasibility of this fabrication method.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Coatings & Films
Muhannad Ahmed Obeidi, Andre Mussatto, Merve Nur Dogu, Sithara P. Sreenilayam, Eanna McCarthy, Inam Ul Ahad, Shane Keaveney, Dermot Brabazon
Summary: The poor surface quality of Additively Manufactured (AM) components can increase the overall cost and lead time of high-performance components. In this study, Ti-6Al-4V Grade 23 ELI parts manufactured through L-PBF process were treated with CO2 laser polishing to reduce the average surface roughness and peak-to-valley distance significantly.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Electrochemistry
Jirui Cheng, Renke Kang, Zhigang Dong, Shang Gao
Summary: This paper proposes a new method, moist particle electrolyte electrochemical mechanical polishing (MPE-ECMP), for the polishing of surfaces of complex structural parts. The method utilizes a sulfonated cation exchange resin as a moist particle electrolyte (MPE) and measures polarization curves using linear scanning voltammetry (LSV) over a 1-hour polishing period. The results demonstrate that MPE-ECMP has good surface finishing properties for beveled surfaces and provides an effective approach for surface polishing of complex structural parts.
ELECTROCHEMISTRY COMMUNICATIONS
(2023)
Article
Optics
Seungjong Lee, Zabihollah Ahmadi, Jonathan W. Pegues, Masoud Mahjouri-Samani, Nima Shamsaei
Summary: The study examines laser polishing as a post-processing method for additively manufactured metallic parts, showing that it can reduce surface roughness, improve high cycle fatigue life, and alleviate residual stresses through a secondary stress relief process, resulting in enhanced fatigue strength across all life regimes.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Zhiteng Xu, Hui Huang, Changcai Cui, Xinjiang Liao, Min Wu, Zhiping Xue
Summary: In order to address the problems of low machining efficiency and serious tool wear caused by the large removal of complex-shaped metal parts, a method of high-efficiency roughing using diamond abrasive wire saw cutting technology was proposed. By constructing a ruled surface model based on the minimum area polygon envelope, the breakage of the wire saw during cutting was avoided. Experimental results on an Al6061 aluminum alloy blisk sample showed that the wire saw cutting had a high material removal rate and resulted in an intact scrap that can be reprocessed into other parts. The average surface roughness of the workpiece after equivalent plane wire saw cutting was 529.24 nm.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Review
Materials Science, Coatings & Films
Emanuele Manco, Ersilia Cozzolino, Antonello Astarita
Summary: This paper provides a comprehensive overview of the laser polishing process for additively manufactured metal parts, discussing the motivation, fundamentals, research streams, materials, and applications. It highlights the role of laser sources, process parameters, and physical phenomena in achieving the desired surface properties.
SURFACE ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Mahanama Dharmawardhana, Asanga Ratnaweera, Gheorghe Oancea
Summary: A machine controller compliant with STEP-NC or ISO 14649 standards has been developed in this research, utilizing Open Architecture Control technology and a Raspberry Pi single-board computer, programmed in C++. This controller is able to extract parameters from STEP-NC files to generate tool paths, has the capability for shop floor level parameter modification and regeneration of tool paths, and closes the loop in the CAD/CAM/CNC chain.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Mechanical
Ming Feng, Yang Lei, Zhixiang Chen, Xianglei Zhang, Xizhang Chen, Youliang Wang
Summary: In this study, the feasibility and characteristics of polishing elliptical elements using a doughnut-shaped MCF polishing tool were investigated through experimental research. The results showed that the middle portion of the polishing tool had the best material removal ability, and different polishing slurries had varying effects on surface roughness and glossiness. Additionally, the working gap, revolution speed, and polishing time also influenced the polishing results. The microstructure of the MCF polishing tool after polishing revealed even distribution of abrasive particles grabbed by ferric clusters, with alpha-celluloses interleaved between the clusters.
Article
Engineering, Electrical & Electronic
Xinyu Zhang, Yuwen Sun
Summary: To avoid surface burn damage, a pneumatic force-controlled actuator was developed to maintain constant contact force during robotic polishing of complex curved plexiglass parts. The actuator, consisting of a double-acting cylinder and two electrical proportional valves, achieves precise small contact force and operates within the optimal pressure range. A mathematical model and a gravity compensation algorithm were established to ensure stability and eliminate the influence of tool gravity. A fuzzy PID control strategy was adopted to handle the nonlinearity, resulting in successful polishing of the plexiglass parts with good surface quality and optical performance.
Article
Engineering, Industrial
J. Rech, D. Krzak, F. Roy, F. Salvatore, A. Gidon, S. Guerin
Summary: A new hybrid polishing process called PEMEC, which combines drag finishing and electrochemical polishing, has been developed for metallic parts. It improves surface roughness within minutes while preserving the shape of the edges. This process has proven to be suitable for complex and rough surfaces produced by additive manufacturing SLM parts.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2022)
