IJPEM

Recent Developments and Challenges on Machining of Carbon Fiber Reinforced Polymer Composite Laminates


박형욱/UNIST




  • Keywords : Cooling liquids, Lubricants, Cooling gases, Cooling methods, Environmentally friendly grinding
  • Control of thermal conditions in the grinding zone is possible through effective delivery of substances with cooling, lubricating and antiadhesive properties during the machining process. In addition to the benefits of coolants, however, a number of economic and ecological problems arise, which include the costs of purchase, use and maintenance as well as the environmental impact of its disposal. These negative aspects of the use of cooling and lubricating liquids have contributed to the modern trend of minimizing their output in machining processes, including grinding. This article presents comprehensive characteristics of knowledge in the field of liquids, gases and solids with cooling, lubricating and antiadhesive properties. The author’s original classification of cooling and lubricating agents by their physical state was proposed and a complete list of known modern environmentally friendly methods of cooling and lubrication of the grinding zone was presented. In order to highlight their beneficial features, the background of conventional methods of delivery coolants, lubricants and antiadhesives to the grinding zone used for years were also characterised. A comprehensive list of all known methods of cooling and lubrication of the grinding zone classified according to the physical state of the delivered medium with a clear separation of hybrid methods consisting in simultaneous delivery of many cooling and lubricating agents was described in the summary. The article concludes with the characteristics of directions of further development in the field of cooling and lubrication of the grinding zone.
IJPEM

Solid-State Nanopore for Molecular Detection


이정철/KAIST




  • Keywords : Nanopore, Resistive pulse sensing, Solid-state nanopore, Molecule detection
  • Solid-state nanopore (SSNP) or synthetic nanopore using semiconductor materials have established themselves as a single molecule bio-detection platform. Although biological nanopore with fixed dimension has been successfully utilized for many sensing applications, SSNP has unique characteristics of distinctly potent geometries and relaxation of modification. The most common method of molecular detection is to measure the temporal variations of the ionic current in the pore. In this review, the principles of the SSNP and the improvement of device performance for the molecular detection platform are discussed elaborately. Moreover, different experimental aspects of the SSNP are discussed in detail. For instance, the enhancement of spatial resolution, modification of temporal resolution with the difficulties of its analyte-detection, as well as reduction of the electrical noise for the improvement of device sensing functionalities, all are addressed in designated chapters for better conception. In addition, the typical and updated applications of SSNP including DNA, protein and virus are briefly discussed. Finally, this article offers the context needed to comprehend current research trends and promote molecular sensing through synthetic nanopores.
IJPEM

Recent Advances of Artificial Intelligence in Manufacturing Industrial Sectors: A Review


이승철/POSTECH
이상원/성균관대학교




  • Keywords : Artificial intelligence, Deep learning, Fault detection and diagnosis, Condition monitoring, Manufacturing process
  • The recent advances in artificial intelligence have already begun to penetrate our daily lives. Even though the development is still in its infancy, it has been shown that it can outperform human beings even in terms of intelligence (e.g., AlphaGo by DeepMind), implying a massive potential for its broader application in various industrial sectors. In particular, the growing public interest in industry 4.0, which focuses on revolutionizing the traditional manufacturing scene, has stimulated a deeper investigation of its possible applications in the related industries. Since it has several limitations that hinder its direct usage, research on the convergence of artificial intelligence with other engineering fields, including precision engineering and manufacturing, is ongoing. This overview looks to summarize some of the important achievements made using artificial intelligence in some of the most influential and lucrative manufacturing industries in hopes of transforming the manufacturing sites.
IJPEM-GT

Integration of Additive Manufacturing in Casting: Advances, Challenges, and Prospects


Lei Li/Hefei University of Technology




  • Keywords : Additive manufacturing, Casting, Process integration, Multi-feature structure, Heavy castings
  • Additive manufacturing (AM) is a novel manufacturing technology that can create highly customized products with more complex geometries than traditional techniques. Despite its significant advantages, including the freedom of design, mass customization, and ability to produce complex structures, AM consumes a large amount of energy and incurs high costs. In addition, AM suffers from long production cycles and low production efficiency in the large-scale manufacturing of metal structures. This study offers a review of the existing literature focused on metal AM technology. To avoid the shortcomings of AM and highlight its benefits, which are widely used for manufacturing in combination with casting. The current combination application of AM and casting is reviewed to provide solutions to the problem of manufacturing large metal components from the perspective of the use of different AM technology and quality control in casting. However, such integration is insufficient for producing large castings with complex shapes, structures, or multiple features. Therefore, a novel method for integrating AM into casting to enable the manufacture of large scale metal parts with complex shapes is introduced as a topic for possible future research. This method divides complex castings with multiple features into an AM processing part and the casting substrate. The complex features were processed by AM on the fabricated casting substrate. This study provides a review of the application of AM into casting and presents a novel idea for the integration application of AM and other processes. This promising method has significant value for future study.
IJPEM-GT

Multi-functionalization Strategies Using Nanomaterials: A Review and Case Study in Sensing Applications


안성훈/서울대학교




  • Keywords : Nanomaterials, High performance, Multi-properties, Multi-physics, Sensing applications
  • Remarkable advances in nanomaterials and nanotechnology have led researchers in various fields. The scale effects imparted by nanomaterials are associated with unexpected macroscale phenomena and properties that find many applications. However, multi-functionalization may be accompanied by physical and commercial limitations. Therefore, research must proceed in several different directions. Here, we define multi-functionalization and the electrical applications thereof in terms of increasing performance, addition of new and valuable properties, and multi-physics in play. We deal with sensors, actuators, energy harvesters, and solar cells and explore research that seeks to increase sensitivity, append “stretchability”, and facilitate untethered communication. Furthermore, we analyze research trends in materials use and manufacturing, and highlight useful fabrication methods. With the aim of predicting future research trends, our review presents a roadmap that will aid research on sensing and multi-functional applications.
IJPEM-GT

Approaches to Sustainability in Chemical Mechanical Polishing (CMP): A review


이현섭/동아대학교




  • Keywords : Chemical mechanical polishing (CMP), Sustainability, Slurry, Polishing pad, Hybrid CMP system
  • Chemical mechanical polishing (CMP) is an essential planarization process for semiconductor manufacturing. The application of CMP has been increasing in semiconductor fabrication for highly integrated devices. Recently, environmental burden caused by the CMP process was assessed because of interest in the global environment. In this study, the previously reported impacts of CMP on the environment and studies conducted on developing various methods to reduce environmental burden are reviewed. In addition to analyzing the impacts of CMP, this paper introduces a method for treating CMP wastewater and improving the material removal efficiency through the improvement of CMP consumables. Finally, the authors review research on hybridization of the CMP process and discuss the direction in which CMP technology will progress to improve sustainability in the future.