Selective Laser Melting

Selective Laser Sintering Additive Manufacturing Technology is a unique and comprehensive guide to this emerging technology. It covers in detail the equipment, software algorithms and control systems, material preparations and process technology, precision control, simulation analysis, and provides examples of applications of selective laser sintering (SLS). SLS technology is one of the most promising advances in 3D printing due to the high complexity of parts it can form, short manufacturing cycle, low cost, and wide range of materials it is compatible with. Typical examples of SLS technology include SLS manufacturing casting molds, sand molds (core), injection molds with conformal cooling channels, and rapid prototyping of ceramic and plastic functional parts. It is already widely used in aviation, aerospace, medical treatment, machinery, and numerous other industries. Drawing on world-leading research, the authors provide state of the art descriptions of the technologies, tools, and techniques which are helping academics and engineers use SLS ever more effectively and widely. Provides instructions for how to accurately use SLS for forming Analyses the numerical simulation methods for key SLS technologies Addresses the use of SLS for a range of materials, including polymer, ceramic and coated sand powder

Additive manufacturing (AM) is one of the manufacturing processes that warrants the attention of industrialists, researchers, and scientists. AM has the ability to fabricate materials to produce parts with complex shapes without any theoretical restrictions combined with added functionalities. Selective laser melting (SLM), also known as laser-based powder bed processing (LPBF), is one of the main AM process that can be used to fabricate wide variety of materials that are Al-, Ti-, Fe-, Ni-, Co-, W-, Ag-, and Au-based, etc. However, several challenges need to be addressed systematically, such as development of new materials that suit the SLM process conditions so the process capabilities can be fully used to produce new properties in these materials. Other issues in the field are the lack of microstructure–property correlations, premature failure, etc. Accordingly, this Special Issue (book) focuses mainly on the microstructure-correlation in three different alloys: AlSi10Mg, Ti6Al4V, and 304L stainless steel, where six articles are presented. Hence, this Special Issue outlines microstructure–property correlations in the SLM processed materials and provides a value addition to the field of AM.

Selective Laser Melting (SLM), also referred to as Laser Powder Bed Fusion (L-PBF), offers significant advantages for the manufacturing of complex, high-quality parts. However, its market share is still small compared to conventional manufacturing technologies. Major drawbacks hindering an industrial ramp-up are low productivity, high part costs and issues with quality and reproducibility. Comprehensive research has been done to overcome these challenges, but little attention has been paid to addressing them by optimizing the laser beam profile. Therefore, the author examines the effect of the laser beam profile on the productivity and process stability through both numerical and experimental investigations. The results show clear advantages an optimized laser beam profile offers.

Selective Laser Melting for Metal Matrix Composites explains in detail the essential preparation and characterization methods for this technology, and explores a range of innovative applications. The subject covered by this book has been the focus of increasing levels of research both in industry and academia globally. The authors have drawn on their influential cutting-edge research to provide a much-needed guide for those investigating or applying this technology. The novel material preparation methodologies addressed here provide new opportunities to expand the applications of additive manufacturing, particularly in industries such as aerospace, medical, automotive, and electronics. These applications, as well as the theory behind this technology are also covered in this book, providing a complete guide which is appropriate for engineers in industry as well as researchers. Provides descriptions of the microstructure and properties of the components produced Explains emerging applications of this technology in a range of industries Covers a range of different materials including iron base, and aluminium and titanium composites Summarises the current research landscape in this field, and signposts the problems in metal matrix composites which remain to be solved

The Magnesium Technology Symposium, the event on which this volume is based, is one of the largest yearly gatherings of magnesium experts in the world. Papers reflect all aspects of the field including primary production to applications, recycling, basic research findings, and industrialization. Readers will find broad coverage of current topics, including alloys and their properties, cast products and processing, wrought products and processing, corrosion and surface finishing, ecology, and more. New and emerging applications in such areas as hydrogen storage are also examined.

A Focus on SLM and SLS Methods in 3D Printing is an indispensable collection of articles for anyone involved in additive manufacturing - from academics and researchers through to engineers and managers within the manufacturing industry.

Triply Periodic Minimal Surface Lattices by Selective Laser Melting Additive Manufacturing presents the design, manufacturing, microstructure, mechanical properties and applications of TPMS structures fabricated by selective laser additive manufacturing technology. The title explains these complex and useful structures based on systematic work in the UK and China. Sections introduce structure design methods, assess TPMS structures, explain mathematical their modeling, present the manufacturing, microstructure, mechanical and fatigue properties of metal uniform TPMS structures, discuss manufacturing and mechanical responses for functionally graded TPMS structures, give numerical analysis methods for predicting the mechanics of uniform and functionally graded TPMS structures, and more. Presents the state-of-the art in triply periodic minimal surface (TPMS) structures by surface laser melting (SLM) Describes how to assess manufacturability of TPMS structures by additive manufacturing (AM) Analyzes the mechanical properties of TPMS structures through experimental and numerical methods Details topology optimization for pore size Gives fatigue fracture mechanics for TPMS structures

Selective Laser Melting (SLM), also referred to as Laser Powder Bed Fusion (L-PBF), offers significant advantages for the manufacturing of complex, high-quality parts. However, its market share is still small compared to conventional manufacturing technologies. Major drawbacks hindering an industrial ramp-up are low productivity, high part costs and issues with quality and reproducibility. Comprehensive research has been done to overcome these challenges, but little attention has been paid to addressing them by optimizing the laser beam profile. Therefore, the author examines the effect of the laser beam profile on the productivity and process stability through both numerical and experimental investigations. The results show clear advantages an optimized laser beam profile offers. The content First comprehensive research on the effect of the laser beam profile on SLM process Understand the effect of the laser beam profile on the process stability and feasible productivity of the SLM process Discover the benefits in terms of manufacturing costs and time that are offered by an optimized laser beam profile The author Tim Marten Wischeropp studied mechanical engineering at the Technical University of Hamburg (TUHH), Germany. After graduating with a focus on product development, he worked as a research fellow at the Institute of Laser and System Technologies (TUHH) as well as group leader for 3D printing at the LZN Laser Zentrum Nord GmbH. Since 2018 he leads the design department at the Fraunhofer Institution for Additive Manufacturing Technologies IAPT.