Now showing items 18-37 of 50

    • Field Induced Jet Micro-EDM 

      Zhao, Wansheng; Kang, Xiaoming; Xu, Kaixian (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      Electrical discharge machining (EDM) is of the potential of micro/nano meter scale machining capability. However, electrode wear in micro-EDM significantly deteriorates the machining accuracy, thus, it needs to be ...
    • High-speed Fabrication of Micro-channels using Line-based Laser Induced Plasma Micromachining (L-LIPMM) 

      Saxena, Ishan; Malhotra, Rajiv; Ehmann, Kornel; Cao, Jian (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      Micro-texturing of surfaces has various applications that often involve texturing over large (macro-scale) areas with high precision and resolution. This demands scalability and speed of texturing while retaining feature ...
    • Hybridizing Micromachining and Microfabrication for Sensor Chips 

      Moghimian, Nima; Etrati, Ali; Sam, Mahshid; Bhiladvala, Rustom (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      We present an example of packaging a MEMS sensor for measuring fluctuations of the wall shear stress in turbulent fluid flows. For these sensors, topographical and thermal constraints required the development of a hybrid ...
    • Improving micro-wire electro-discharge machining operation of polished silicon wafer by conductive coating 

      Rasheed, Aous Naji; Muthalif, Asan G. A.; Saleh, Tanveer (9th International Conference on MicroManufacturing (ICOMM 2014), 2014-03-25)
      Micro-Wire Electro-discharge machining (micro-WEDM) is a nonconventional machining technology which is extensively used for metal based micro fabrication process. This is a non-contact machining process where material ...
    • Influence of Process Parameters on the Deformation of Copper Foils in Flexible-Pad Laser Shock Forming 

      Nagarajan, Balasubramanian; Castagne, Sylvie; Wang, Zhongke (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      This paper investigates a new microforming technique, Flexible-Pad Laser Shock Forming (FPLSF), to produce mi-crofeatures on metallic foils without rigid punches and dies. FPLSF uses the laser-induced shock pressure and a ...
    • Investigation on a Microextrusion Process of Parallel Protrusions from Metal Strip 

      Stellin, Tommaso; Merklein, Marion; Engel, Ulf (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      The continuous purchase of higher quality standards in the production with parallel reduction of the costs leads to the need of a robust process design avoiding as much as possible the occurrence of defects in the production. ...
    • Irregular, Adaptive Scan Trajectories for Pulsed Laser Micro Polishing 

      Vadali, Madhu; Ma, Chao; Li, Xiaochun; Duffie, Neil A.; Pfefferkorn, Frank E. (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      The objective of this work is to generate irregular, smooth, adaptive laser scan trajectories for pulsed laser micro polishing (PL?P). Traditionally PL?P, like other surface finishing processes has used zigzag scan ...
    • 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 ...