Browsing 2008 International Solid Freeform Fabrication Symposium by Issue Date

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    • Wear of SLS Materials under Plastic and Elastic Contact Conditions 

      Kumar, S. (2008)
      Sliding wear behaviour of two SLS materials: LaserForm and DirectSteel has been investigated using Fretting tests, Pin-on-disc tests and microfretting tests. Wear test conditions were determined by calculating Hertzian ...

    • Rotational 3D Printing of Sensor Devices using Reactive Ink Chemistries 

      Hauser, C.; Lewis, D. M.; Morris, K. F.; Broadbent, P. J; Zhao, X.; Clare, A. T.; Dunschen, M. (2008)
      This paper charts progress in three key areas of a project supported by both UK government and UK industry to manufacture novel sensor devices using rotary 3D printing technology and innovative ink chemistries; (1) the ...

    • Using Literature Reviews as a Learning Tool for Solid Freeform Fabrication 

      Stucker, Brent (2008)
      Over the past six years, students involved in the “Non-Traditional & Additive Manufacturing” course at Utah State University have been assigned an in-depth literature review as one their course projects. This literature ...

    • Flame Retardant Intumescent Polyamide 11 Nanocomposites – Further Study 

      Lao, S.C.; Koo, J. H.; Moon, T. J.; Yong, W.; Lam, C.; Zhou, J.; Hadisujoto, B.; Wissler, G.; Pilato, L.; Luo, Z. P. (2008)
      The objective of this research is to develop improved polyamide 11 and 12 polymers with enhanced flame retardancy, thermal, and mechanical properties for selective laser sintering (SLS) rapid manufacturing (RM). In the ...

    • Integrating Rapid Prototyping into Product and Process Development 

      Asiabanpour, Bahram (2008)
      Rapid prototyping concepts and skills are being taught to undergraduate manufacturing engineering students at Texas State University-San Marcos, not as an independent course, but as a part of the broad concept of product ...

    • Impact Absorbent Rapid Manufactured Structures (IARMS) 

      Brennan-Craddock, J. P. J.; Bingham, G. A.; Hague, R. J. M.; Wildman, R. D. (2008)
      Rapid Manufacturing (RM) is increasingly becoming a viable manufacturing process due to dramatic advantages that it facilitates in the area of design complexity. Through the exploration of the design freedom afforded by ...

    • Microstructural Characterization of Diode Laser Deposited Ti-6Al-4V 

      Fu, Tian; Fan, Zhiqiang; Pulugurtha, Syamala R.; Sparks, Todd E.; Ruan, Jianzhong; Liou, Frank; Newkirk, Joseph W. (2008)
      Laser Direct Metal Deposition (DMD) is an effective approach to manufacturing or repairing a range of metal components. The process is a layer-by-layer approach to building up a three dimensional solid object. The ...

    • Solid Freeform Fabrication of Stainless Steel Using Fab@Home 

      Lobovsky, Maxim; Lobovsky, Alexander; Behi, Mohammad; Lipson, Hod (2008)
      Metal or ceramic parts can be solid freeform fabricated (SFF) using powdered material processing techniques. A slurry of the powdered material is deposited in a layer-by-layer fashion, and then sintered. We demonstrate ...

    • Polyamide 11-Carbon Nanotubes Nanocomposites: Preliminary Investigation 

      Lao, S. C.; Koo, J. H.; Yong, W.; Lam, C.; Zhou, J.; Moon, T.; Piccione, P. M.; Wissler, G.; Pilato, L.; Luo, Z. P. (2008)
      The objective of this research is to develop an improved polyamide 11 (PA11) polymer with enhanced flame retardancy, thermal, and mechanical properties for selective laser sintering (SLS) rapid manufacturing. In the ...

    • 2008 International Solid Freeform Fabrication Symposium Table of Contents 

      Laboratory for Freeform Fabrication and University of Texas at Austin (2008)

    • Microstructure and Wear of SLM Materials 

      Kumar, S. (2008-09-10)

    • Effects of Degree of Particle Melt and Crystallinity in SLS Nylon-12 Parts 

      Majewski, C. E.; Zarringhalam, H.; Hopkinson, N. (2008-09-10)
      Differential Scanning Calorimetry (DSC) traces for SLS Nylon-12 parts display two distinct melt peaks, which have been related to the presence of both melted and crystallised regions, and un-melted particle cores within ...

    • A New Layer Casting System for Ceramic Laser Rapid Prototyping Apparatus 

      Yen, H. C.; Chiu, M. L.; Huang, P. H. (2008-09-10)
      In the existing Ceramic Laser Fusion system, slurry is fed on the high temperature surface of the green part; therefore, a part of water infiltrates into the green block and vaporizes before the process of layer casting. ...

    • The Characteristics and Applications of Ceramic Laser Fusion and Ceramic Laser Sintering 

      Tang, H. H.; Yen, H. c.; Chiu, M. L.; Jou, J. H. (2008-09-10)
      The aim of present study is to investigate the possible application of the ceramic parts which are fabricated with the process of Ceramic Laser Fusion or Ceramic Laser Sintering. The experimental results reveal: (1) CLF ...

    • Printing High Viscosity Fluids using Ultrasonic Droplet Generation 

      Rosen, David W.; Margolin, Lauren; Vohra, Sanjay (2008-09-10)
      A new printing technology based on ultrasonic actuation (~1 MHz) is presented that has the potential to print high viscosity fluids. In this paper, we describe the print-head’s operating principles and construction. ...

    • Product Focused Freeform Fabrication Education 

      Liou, Frank; Leu, Ming (2008-09-10)
      Presented in this paper is our experience of teaching freeform fabrication to students at the Missouri University of Science and Technology, and to high school students and teachers. The emphasis of the curriculum is ...

    • Processing and Microstructure of WC-CO Cermets by Laser Engineering Net Shaping 

      Xiong, Y.; Smugeresky, J. E.; Lavernia, E. J.; Schoenung, J. M. (2008-09-10)
      Submicron-sized tungsten carbide-cobalt (WC-Co) powder and nanostructured WC-Co powder were applied to make thick wall samples by the Laser Engineered Net Shaping (LENS®) process. It was found that decomposition and ...

    • Processing Parameters for Selective Laser Melting (SLM) of Gold 

      Khan, M.; Dickens, P. M. (2008-09-10)
      Research into laser processing of different metals has enabled Solid Freeform Fabrication (SFF) processes to produce parts for a wide variety of applications. However, less focus has been made on the processing of precious ...

    • Laser Micro Sintering – A Quality Leap through Improvement of Powder Packing 

      Streek, A.; Regenfuss, P.; Ebert, R.; Exner, H. (2008-09-10)
      Laser micro sintering, a modification of selective laser sintering for freeform fabrication of micro-parts, was continuously upgraded since its first application. Poor density of the powder layers has been a persisting ...

    • Tailoring the Mechanical Properties of Selective Laser Sintered Parts 

      Majewski, C. E.; Toon, D.; Zarringhalam, H.; Hopkinson, N.; Caine, M. P. (2008-09-10)
      The ~£1 million IMCRC-funded integrated project ‘Personalised Sports Footwear: From Elite to High Street’ is investigating the use of Rapid Manufacturing to produce personalised sports shoes, with the aim of enhancing ...