Preface.- Chapter 1: Envision. 1.1 Evolution of Metalworking.- 1.2 Advent of Computers.- Chapter 2: Additive Manufacturing Metal, The Art of the Possible. 2.1 AM Destinations: Novel Applications and Designs. 2.2 Artistic.- Chapter 3: On the Road to AM. 3.1 You are Here.- 3.2 AM Vehicles, the machines to take you there.- Chapter 4: Understanding Metal for Additive Manufacturing. 4.1 Structure. 4.2 Physical Properties.- Chapter 5: Lasers, Electron Beams, Plasma Arcs.- 5.1 The Molten Pool.- 5.2 Lasers.- Chapter 6: Computers, Solid Models and Robots.- 6.1 Computer Aided Design.- 6.2 Computer Aided Engineering.- Chapter 7: Origins of 3D Metal Printing.- 7.1 Plastic Prototyping and 3D Printing.- 7.2 Weld Cladding and 3D Weld Metal Buildup.- Chapter 8: Current System Configurations.- 8.1 Laser Powder Bed Fusion Systems.- 8.2 Laser Directed Energy Deposition Systems.- Chapter 9: Inspiration to 3D Design.- 9.1 Inspired Design.- 9.2 Elements of Design.- Chapter 10: Process Development.- 10.1 Parameter Selection.- 10.2 Parameter Optimization.- Chapter 11: Building, Post Processing and Inspecting.- 11.1 Building the Part.- 11.2 Post Processing and Finishing.- Chapter 12: Trends in Government, Industry, Research, Business.- 12.1 Government and Community.- 12.2 University and Corporate Research.- Acknowledgements.- Professional Society and Organization Links.- Terms and AM Jargon.- Acronyms.- References.- AM Machine and Service Resource Links.- About the Author.- Appendices.
About the Author: John O. Milewski received his B.S. in Computer Engineering from the University of New Mexico and his M.S. in Electrical Engineering from Vanderbilt University. He began his technical career with five years' metal fabrication experience ranging from heavy industry production as an ASME code welder to light manufacturing and applied research. He spent 32 years at Los Alamos National Laboratory, in positions including Welding Technologist, Engineer, Team Leader, Experimental Component Fabrication Program Manager, and Group Leader for Manufacturing Capability. He is currently retired from the Lab, writing and consulting as APEX3D LLC regarding the new and exciting applications of AM technology.
His technical expertise includes arc systems electron beam, laser welding, robotics, sensing and controls, and the joining of less common metals. His work experience also includes CAD/CAM/CNC model based engineering, process modeling, and simulation with validation methods to include residual stress measurement. In addition, he served 2 years in the late 1980s as Vice President of Synthemet Corporation, an entrepreneurial high tech start-up, with the goal of development and commercialization of 3D additive manufacturing of metals.
He is author and co-author of numerous publications related to high energy beam processing and process modeling. His awards include an R&D 100 Award for Directed Light Fabrication, Fellow of the American Welding Society (AWS) and the AWS Robert L. Peaslee Award. He is inventor or co-inventor for a number of patents related to laser welding and additive manufacturing.
He has had extensive formal collaborations with universities and sponsored students resulting in refereed publication and patenting. His professional society involvement included Chairman, Co-Chairman, and advisor of AWS committees related to High Energy Beam, Electron Beam, and Laser Beam Welding. In addition, he currently serves as an advisor to the AWS D20 Additive Manufacturing committee and provides peer review to technical publications of AWS and ASM International.
His international technical contributions include US Delegate to the High Energy Beam Welding Commission of the IIW (International Institute of Welding), Invited Keynote Lecturer at the 58th Annual Assembly and International Conference of IIW, and the AWS R.D. Thomas Award winner for his international contributions and committee work on the harmonization of international standards.
