Selective Laser Melting: Materials and Applications

Selective Laser Melting: Materials and Applications
Author: Prashanth Konda Gokuldoss
Publisher:
Total Pages: 98
Release: 2020
Genre: Engineering (General). Civil engineering (General)
ISBN: 9783039285792

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

Selective Laser Melting
Author: Prashanth Konda Gokuldoss
Publisher: MDPI
Total Pages: 98
Release: 2020-04-03
Genre: Technology & Engineering
ISBN: 3039285785

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.

Light Weight Materials

Light Weight Materials
Author: Kaushik Kumar
Publisher: John Wiley & Sons
Total Pages: 256
Release: 2021-12-20
Genre: Technology & Engineering
ISBN: 1119887658

In the automotive and aerospace industries, the need for strong yet light materials has given rise to extensive research into aluminum and magnesium alloys and formable titanium alloys. All of these are categorized as light weight materials. The distinguishing feature of light weight materials is that they are low density, but they have a wide range of properties and, as a result, a wide range of applications. This book provides researchers and students with an overview of the recent advancements in light weight material processing, manufacturing and characterization. It contains chapters by eminent researchers on topics associated with light weight materials, including on the current buzzword “composite materials”. First, this book describes the current status of light weight materials. Then, it studies applications of these materials, given that, as the densities vary, so do the applications, ranging from automobiles and aviation to bio-mechatronics. This book will therefore serve as an excellent guide to this field.

Laser Additive Manufacturing

Laser Additive Manufacturing
Author: Milan Brandt
Publisher: Woodhead Publishing
Total Pages: 500
Release: 2016-09-01
Genre: Technology & Engineering
ISBN: 0081004346

Laser Additive Manufacturing: Materials, Design, Technologies, and Applications provides the latest information on this highly efficient method of layer-based manufacturing using metals, plastics, or composite materials. The technology is particularly suitable for the production of complex components with high precision for a range of industries, including aerospace, automotive, and medical engineering. This book provides a comprehensive review of the technology and its range of applications. Part One looks at materials suitable for laser AM processes, with Part Two discussing design strategies for AM. Parts Three and Four review the most widely-used AM technique, powder bed fusion (PBF) and discuss other AM techniques, such as directed energy deposition, sheet lamination, jetting techniques, extrusion techniques, and vat photopolymerization. The final section explores the range of applications of laser AM. - Provides a comprehensive one-volume overview of advances in laser additive manufacturing - Presents detailed coverage of the latest techniques used for laser additive manufacturing - Reviews both established and emerging areas of application

Advancement of Selective Laser Melting by Laser Beam Shaping

Advancement of Selective Laser Melting by Laser Beam Shaping
Author: Tim Marten Wischeropp
Publisher: Springer Nature
Total Pages: 200
Release: 2021-11-30
Genre: Technology & Engineering
ISBN: 3662645858

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 and Metal Matrix Composites

Selective Laser Melting for Metal and Metal Matrix Composites
Author: Bo Song
Publisher: Academic Press
Total Pages: 282
Release: 2020-10-07
Genre: Technology & Engineering
ISBN: 0081030061

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

Selective Laser Sintering Additive Manufacturing Technology

Selective Laser Sintering Additive Manufacturing Technology
Author: Chunze Yan
Publisher: Academic Press
Total Pages: 972
Release: 2020-12-07
Genre: Technology & Engineering
ISBN: 0081029934

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

Fundamentals of Laser Powder Bed Fusion of Metals

Fundamentals of Laser Powder Bed Fusion of Metals
Author: Igor Yadroitsev
Publisher: Elsevier
Total Pages: 678
Release: 2021-05-23
Genre: Technology & Engineering
ISBN: 0128240911

Laser powder bed fusion of metals is a technology that makes use of a laser beam to selectively melt metal powder layer-by-layer in order to fabricate complex geometries in high performance materials. The technology is currently transforming aerospace and biomedical manufacturing and its adoption is widening into other industries as well, including automotive, energy, and traditional manufacturing. With an increase in design freedom brought to bear by additive manufacturing, new opportunities are emerging for designs not possible previously and in material systems that now provide sufficient performance to be qualified in end-use mission-critical applications. After decades of research and development, laser powder bed fusion is now enabling a new era of digitally driven manufacturing. Fundamentals of Laser Powder Bed Fusion of Metals will provide the fundamental principles in a broad range of topics relating to metal laser powder bed fusion. The target audience includes new users, focusing on graduate and undergraduate students; however, this book can also serve as a reference for experienced users as well, including senior researchers and engineers in industry. The current best practices are discussed in detail, as well as the limitations, challenges, and potential research and commercial opportunities moving forward. - Presents laser powder bed fusion fundamentals, as well as their inherent challenges - Provides an up-to-date summary of this advancing technology and its potential - Provides a comprehensive textbook for universities, as well as a reference for industry - Acts as quick-reference guide

Standards, Quality Control, and Measurement Sciences in 3D Printing and Additive Manufacturing

Standards, Quality Control, and Measurement Sciences in 3D Printing and Additive Manufacturing
Author: Chee Kai Chua
Publisher: Academic Press
Total Pages: 270
Release: 2017-06-03
Genre: Technology & Engineering
ISBN: 0128134909

Standards, Quality Control and Measurement Sciences in 3D Printing and Additive Manufacturing addresses the critical elements of the standards and measurement sciences in 3D printing to help readers design and create safe, reliable products of high quality. With 3D printing revolutionizing the process of manufacturing in a wide range of products, the book takes key features into account, such as design and fabrication and the current state and future potentials and opportunities in the field. In addition, the book provides an in-depth analysis on the importance of standards and measurement sciences. With self-test exercises at the end of each chapter, readers can improve their ability to take up challenges and become proficient in a number of topics related to 3D printing, including software usage, materials specification and benchmarking. - Helps the reader understand the quality framework tailored for 3D printing processes - Explains data format and process control in 3D printing - Provides an overview of different materials and characterization methods - Covers benchmarking and metrology for 3D printing

Laser Additive Manufacturing of High-Performance Materials

Laser Additive Manufacturing of High-Performance Materials
Author: Dongdong Gu
Publisher: Springer
Total Pages: 322
Release: 2015-04-21
Genre: Technology & Engineering
ISBN: 3662460890

This book entitled “Laser Additive Manufacturing of High-Performance Materials” covers the specific aspects of laser additive manufacturing of high-performance new materials components based on an unconventional materials incremental manufacturing philosophy, in terms of materials design and preparation, process control and optimization and theories of physical and chemical metallurgy. This book describes the capabilities and characteristics of the development of new metallic materials components by laser additive manufacturing process, including nanostructured materials, in situ composite materials, particle reinforced metal matrix composites, etc. The topics presented in this book, similar as laser additive manufacturing technology itself, show a significant interdisciplinary feature, integrating laser technology, materials science, metallurgical engineering and mechanical engineering. This is a book for researchers, students, practicing engineers and manufacturing industry professionals interested in laser additive manufacturing and laser materials processing. Dongdong Gu is a Professor at College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics (NUAA), PR China.