Additive Manufacturing

MIT, 2013. — 19 p. Contents: Making news recently What is Additive Manufacturing? References Fused deposition modeling (FDM) Pinwheel made by FDM (Fall 2002) The consumer market is responsible for the hype, and huge potential? Industry drivers Common AM methods / classification FDM physics: extrusion The extruder (Stratasys Dimension) FDM part mechanical properties Stereolithography (SLA) SLA skull prototype Part comparison: FDM vs. SLA A sphere made on the Form1: post-print curing Tolerances: where is FDM, SLA? Surface roughness: where is FDM, SLA? Micro-SLA (in some cases known as two-photon polymerization) F1 car 0.285 mm long! 3D printing (as it was named) Example 3D printed parts (quality?) Powder 3D printing (Z-Corp) Selective laser sintering (SLS) SLS – metal parts Sintering mechanism Infiltration after sintering Dyson SLA/SLS prototyping Simultaneous deposition and fusion LENS nozzle designs Unifying attributes of AM methods? Cost versus throughput (volume) Real applications and markets Invisalign Invisalign process (as of Kalpakjian) Short run injection molding Aircraft parts Individual design and who cares WHERE or HOW my part is made? Proposed organ printing method Critical enablers of continued growth Standard Terminology for Additive Manufacturing Technologies

Fabricated tells the story of 3D printers, humble manufacturing machines that are bursting out of the factory and into schools, kitchens, hospitals, even onto the fashion catwalk. Fabricated describes our emerging world of printable products, where people design and 3D print their own creations as easily as they edit an online document.

A 3D printer transforms digital information into a physical object by carrying out instructions from an electronic design file, or 'blueprint.' Guided by a design file, a 3D printer lays down layer after layer of a raw material to 'print' out an object. That's not the whole story, however. The magic happens when you plug a 3D printer into today’s mind-boggling digital technologies. Add to that the Internet, tiny, low cost electronic circuitry, radical advances in materials science and biotech and voila! The result is an explosion of technological and social innovation.

Fabricated takes the reader onto a rich and fulfilling journey that explores how 3D printing is poised to impact nearly every part of our lives.

Aimed at people who enjoy books on business strategy, popular science and novel technology, Fabricated will provide readers with practical and imaginative insights to the question 'how will this technology change my life?' Based on hundreds of hours of research and dozens of interviews with experts from a broad range of industries, Fabricated offers readers an informative, engaging and fast-paced introduction to 3D printing now and in the future.

This book tells the story of 3D printers, humble manufacturing machines that are bursting out of the factory and into schools, kitchens, hospitals, even onto the fashion catwalk. The book describes the emerging world of printable products, where people design and 3D print their own creations as easily as they edit an online document. A 3D printer transforms digital information into a physical object by carrying out instructions from an electronic design file, or "blueprint."