Papers by Keyword: Advanced Manufacturing

Abstract: Manganese is a key transition metal essential to metallurgy, particularly for strengthening steel. Alloys of manganese including iron-manganese (Fe-Mn), manganese-aluminum (Mn-Al), manganese-titanium (Mn-Ti), and other multi-element systems are increasingly critical in biomedical, aerospace, energy, and marine industries. This review consolidates current knowledge, highlights research gaps, and charts future directions by examining Mn’s chemical and metallurgical properties, major alloy systems, mechanical and corrosion performance, and modern processing methods. In-depth case studies in automotive (TWIP steels), biomedical (biodegradable stents), and aerospace (high-entropy alloys) applications are presented to illustrate real-world performance. A comparative analysis of advanced manufacturing techniques, including Laser Powder Bed Fusion (L-PBF) and Directed Energy Deposition (DED), reveals the profound impact of processing on microstructure and properties. Drawing on over seventy recent studies, this work assesses how microstructure, phase transformations, and alloying behavior influence performance across structural, biodegradable, and functional applications. Despite notable progress, challenges persist in predicting corrosion, ensuring long-term biocompatibility, overcoming low-temperature brittleness, and mitigating the environmental impacts of manganese processing. A critical evaluation of the manganese lifecycle, from mining impacts to recycling challenges, underscores the need for sustainable practices. To address these challenges, we recommend advanced manufacturing for precise microstructural control, surface treatments to improve corrosion resistance, and computational modeling to predict performance. Future research should prioritize corrosion-resistant, biocompatible alloys, refine additive manufacturing for complex designs, gather long-term biocompatibility data, and improve recycling methods. Collaborative efforts integrating simulations, experimental validation, and sustainable practices will ultimately shape manganese’s role in future innovations.

Abstract: Some recent trends and developments in advanced manufacturing of advanced materials from macro-to nanoscale subjected to shock loading, i.e. the up-to-date very important engineering area from industrial, research and academic points of view, with industrial applications to net-shape manufacturing, bioengineering, energy and safety, an outcome of the very extensive, over 40 years, work on this field performed by the author and his research international team, are briefly outlined.

Abstract: Texture metrology of large optical components causes many practical problems, from handling heavy units in the laboratory, to applying existing bench top devices, unable to access most of the part area. Application of an on-machine device allows these practical issues to be overcome and provides an opportunity for an automated metrology process. We describe our work on a texture interferometer that is mounted onto a Zeeko optical polishing machine for in-process surface texture measurements on large optics.

Abstract: Available-To-Promise (ATP) function is an important tool in supply chain management to enhance the responsiveness of order promising and the reliability of order fulfillment. ATP models provide responses to customer order enquiries, based on resource availability, allowing the user to determine whether they should accept the order. Currently, many of the ATP models available adopt a deterministic approach and do not address uncertainties in the manufacturing environment. In this paper, a fuzzy mathematical programming model is proposed to address the problem of order-promising under an environment of supply uncertainty. The model aims to minimize the cost of rejecting orders, failing to meet promised orders and inventory holding cost of the finished products and supply materials. In addition to order promising, the model also performs order-fulfillment and provides a master production schedule of each product and material requirement planning of each supply material over the given planning horizon. To solve the fuzzy mathematical model, an approach based on possibility and necessity theory is applied.

Abstract: Recently, there has been a huge interest in application of thermal spraying processes to apply a protective layer on the surface of engineering components. Thermal spraying as a near net shape forming technique has also found applications in manufacturing of advanced engineering components. Spraying methods such as High Velocity Oxygen Fuel (HVOF), Vacuum Plasma Spraying (VPS), and Air Plasma Spraying (APS) are among the most commonly used deposition techniques. Coatings are built up from impact of molten particles on the substrate surface and their flattening and solidification (splat formation). Deposition of millions of individual splats connected to each other at different layers will result in a lamellae type structure. This is a typical example of an anisotropic microstructure. The microstructural features such as porosity, oxide layers define the physical and mechanical properties of coating material. This study investigates the influence of substrate temperature on microstructural characteristics of APS deposited superalloy 625 on steel substrate. The coatings were deposited on substrates at different temperatures. The porosity level was measured using prosimetry. Both image analysis technique and Electron Probe Microanalysis (EPMA) was used to measure the amount of oxide phase. The results indicated that lower substrate temperature results in lower oxide in microstructure. There has been no significant change in porosity level due to substrate temperature.

Abstract: In order to meet the development of advanced manufacturing technology, based on the requirement of engineering training in colleges in the new period, the advanced manufacturing engineering training platform is established. In this paper, the authors introduce in details the framework and function, analyze how to run the platform, and then, sum up its application of numerical control manufacturing in practice.

Abstract: Advanced manufacturing technology is one of the modern frontier disciplines of science and technology, which is the aim with the fastest speed, lowest cost to provide users with useful high-quality products. It is manufacturing process method with changing and development for process, and is also the core technology and infrastructure to advanced manufacturing technology for advanced manufacturing technology. On the basis of presentation of feature and characteristic of advanced manufacturing process, this paper mainly discusses the trend for development of advanced manufacturing technology, and looks forward to applying the advanced manufacturing process in our country.