Now showing items 25-44 of 50

    • Laser Polishing of Micro-Machined Microfluidic Molds 

      Smith, Bryce B.; Wolf, Dennis M.; Turner, Kevin T.; Duffie, Neil A.; Li, Xiaochun; Pfefferkorn, Frank E. (5th International Conference on MicroManufacturing (ICOMM 2010), 2010-04-05)
      The objective of this paper is to explore the effective-ness of using a pulsed 1064 nm wavelength Nd:YAG laser to polish micro-machined metal molds. Polishing is desired to reduce the surface roughness of Polydimethylsiloxane ...
    • Manufacturing Guidelines for Micro Injection Molds 

      Garcia, Gerardo; Siller, Hector; Medrano-Tellez, Alexis (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      The large demand for micro injected plastic parts can be solved with the reconversion of conventional mold machine shops in order to be suitable for performing micro manufacturing of molds and dies. This paper documents ...
    • Micro End Milling Polystyrene for Microfluidic Applications 

      Christ, Kevin T.; Smith, Bryce B.; Pfefferkorn, Frank E.; Turner, Kevin T. (5th International Conference on MicroManufacturing (ICOMM 2010), 2010-04-05)
      Microfluidic devices developed in research labs are often fabricated from poly(dimethylsiloxane) (PDMS) because techniques to manufacture devices via lithographic and molding techniques are well-established. However, ...
    • Micro Injection Molded Microtopographic Polymer Plates used to Mechanically Direct Stem Cell Activity 

      Rodgers, John W.; Casey, Meghan E.; Jedlicka, Sabrina S.; Coulter, John P. (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      A novel micro injection molding assembly which allows for firm yet compliant housing of silicon tooling was designed and manufactured. Microchannels were etched into a silicon wafer through the use of ultraviolet ...
    • Micro milling cutting forces on machining aluminum alloy 

      Araujo, Anna Carla; Mougo, Adriane Lopes; Campos, Fabio de Oliveira (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      Miniaturization has increased over the last decade and, as a consequence, manufacturing of micro parts for bioengineering and aerospace applications are one of the areas there is a need of research and development. Micro ...
    • Micro-EDM Pulse Energy Distribution Ratio Determination 

      Shao, Bai; Rajurkar, Kamlakar (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      In this paper, a pulse energy distribution ratio determination method for micro-EDM is presented. The pulse energy distribution ratio is a crucial parameter in the modeling of the EDM process. Instead of measuring the ...
    • Micromachining Characterization of Ultrathin Ni-membranes 

      Mahawar, Vijay; Singh, Kundan Kumar; Singh, Ramesh (9th International Conference on MicroManufacturing (ICOMM 2014), 2014-03-25)
      Thin membranes of different materials find extensive use in fabrication of Micro Electro Mechanical Systems (MEMS) devices.Machined membranes are used as heat sinks by fabricating micro channels for high heat transfer rates ...
    • Microstructural Analysis of Ultrasonic Vibration Assisted Turning of Ti alloy Ti-6Al-4V 

      Patil, Sandip; Joshi, Suhas; Tewari, Asim (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
    • Nanofabrication of Electrospun Fibers for Controlled Release of Retinoic Acid 

      Khadem Mohtaram, Nima; Ko, Junghuyk; Carlson, Michael; Byung-Guk Jun, Martin; Willerth, Stephanie (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      The process of electrospinning has received a remarkable amount of attention as this technique can be used to encap-sulate bioactive agents into polymer nanofibers while varying topographies. Encapsulation of bioactive ...
    • Novel Machining Technique for Surface Patterning by Diamond Turning 

      Neo, Wee Keong; Huang, Rui; Kumar, A. Senthil; Rahman, Mustafizur (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      This paper presents a novel method of machining image surface by diamond turning with fast tool servo (FTS). In the proposed methodology, three-dimensional pixel data [X, Y, Z] are extracted directly from a digital image ...
    • Numerical Modeling of Excimer Laser Curved Surface Ablation 

      Garg, Vivek; Marla, Deepak; Saxena, Ishan; Joshi, Suhas S. (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      Laser ablation has been widely used in the fabrication of miniature parts. The technique is also used in the fabrication of micro lens or micro-curved surfaces which find potential applications in various optical, bio- ...
    • Observation of Tool Life of Micro End Mills 

      Martin, Blair; Morrow, Justin; Heaney, Patrick; Pfefferkorn, Frank (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      Prediction of mechanical machining tool life is an integral part of commercial manufacturing. Failure of micro end mills is still not well understood, and further work needs to be done to accurately predict tool life. The ...
    • Parametric Studies of Melt Electrospinning Poly ?(caprolactone) Fibers for Tissue Engineering Applications 

      Ko, Junghyuk; K. Mohtaram, Nima; Lee, Patrick C.D.; Willerth, Stephanie M.; Jun, Martin B. (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      The process of electrospinning has received remarkable amount of attention as this technique can be used to fabricate suitable scaffolds for cells. In order to control morphology of scaffold, parametric studies are necessary ...
    • A Prediction of Laser Beam-to-Cutting Tool in Laser Assisted Micro Milling of Hardened Steel 

      Ibrahim, Mohd. Rasidi; Mohid, Zazuli; Abd Rahim, Erween; Md. Warap, Norazlan; Ismail, Mohd. Idris Shah (9th International Conference on MicroManufacturing (ICOMM 2014), 2014-03-25)
      Laser assisted micro milling (LAMM) is one of the methods that used to enhance the ability to manufacture the micro scale product. Laser is used to preheat the workpiece materials prior the machining process. Therefore,reducing ...
    • Prevention of Self-excited Vibrations in End-milling by Actively Tuning Fixture Stiffness using Fixed-fixed Beams Under Axial Load 

      Moore, Paul M.; Wiens, Gloria J. (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      In this paper, the development of a novel workpiece holder for micro- and meso-scale applications is discussed. Through the use of applied tensile axial force on fixed-fixed support beams, the stiffness and clamping ...
    • Productivity Enhancement in Laser Induced Plasma Micromachining by altering the Salinity of the Dielectric Media 

      Saxena, Ishan; Ehmann, Kornel; Cao, Jian (9th International Conference on MicroManufacturing (ICOMM 2014), 2014-03-25)
      Laser Induced Plasma Micromachining (LIPMM), a recently pioneered micromachining process, offers higher material removal rates and greater aspect-ratios of machined features as compared to laser ablation, while preserving ...
    • Pulsed Laser Micro Polishing: Surface Prediction Model 

      Vadali, Madhu; Ma, Chao; Duffie, Neil A.; Li, Xiaochun; Pfefferkorn, Frank E. (6th Annual Conference on MicroManufacturing (ICOMM 2011), 2011-03-07)
      This project is focused on developing physics-based models to predict the outcome of pulsed laser micro polishing (PL�P). Perry et al. have modeled PL�P as oscillations of capillary waves with damping resulting from the ...
    • Seedless, Etchless Deposition of Nanocrystalline Diamond Coatings for Performance Improvements of Micro End Mills using Carbon Ion Implantation 

      Torres, Christopher D.; Heaney, Patrick J.; Sridharan, Kumar; Cao, Guoping; Sumant, Anirudha V.; Carpick, Robert W.; Pfefferkorn, Frank E. (6th International Conference on MicroManufacturing (ICOMM 2011), 2011-03-07)
      This study compares the cutting performance of (1) as-received uncoated, (2) acid etched plus seeded plus nanocrystalline diamond (NCD) coated, (3) carbon ion implanted (CII) plus NCD coated, and (4) only CII micro end mills.
    • Sol-Gel Synthesis of ZrO2 Coatings on Micro End Mills 

      Morrow, Justin; Tejedor-Anderson, M. Isabel; Anderson, Mark A.; Ruotolo, Luis A.; Pfeffernkorn, Frank (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      The objective of this paper is to develop a coating method for placing ultra-thin zirconia films, fabricated using sol-gel methods, onto micro end mills for purposes of improving performance with respect to tool wear and ...
    • Stochastic Characteristics in Microgrinding Wheel Static Topography using Machine Vision 

      Kunz, Jacob A; Mayor, James R (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      Superabrasive grinding wheels are used for the machining of brittle materials such tungsten carbide. Stochastic modeling of the wheel topography can allow for statistical bounding of the grind force characteristics ...