Now showing items 7-26 of 50

    • Design and numerical simulation of an air turbine for a high frequency tool spindle 

      Mueller, Christopher; Reichenbach, Ingo Gustav; Aurich, Jan Christian (9th International Conference on MicroManufacturing (ICOMM 2014), 2014-04-25)
      The increasing demand for micro structures and micro parts requires micro tools and precision machines. Furthermore, tool spindles with a very high rotational speed and low run out error are needed to get feasible cutting ...
    • Dynamic Characterization of a Micro-machining Spindle 

      Knapp, Byron; Arneson, Dave (9th International Conference on MicroManufacturing (ICOMM 2014), 2014-03-25)
      Ultra-precision micro-machining processes such as diamond micro-milling are used to efficiently manufacture optical quality surfaces. These processes require high stiffness spindles with low synchronous and asynchronous ...
    • Effect of material microstructure on the micro-EDM process 

      Elkaseer, Ahmed A.; Bigot, Samuel; Surleraux, Anthony; Rosochowski, Andrzej (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      This paper presents a preliminary experimental study of the factors affecting the micro-EDM process aiming at obtaining a deeper understanding of the micro-EDM die sinking process. In particular, the machining response ...
    • Effect of the tool locus on the cutting thickness in the ball endmill process 

      Takenori, Ono (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
    • Effect of Thermocapillary Flow on the Surface Profile in Pulsed Laser Micro Polishing 

      Ma, Chao; Vadali, Madhu; Duffie, Neil A.; Pfefferkorn, Frank E.; Li, Xiaochun (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      The objective of this paper is to understand and predict how surface profiles produced by thermocapillary flow change with material properties and process parameters during pulsed laser micro polishing. Thermocapillary ...
    • Effects of Laser Pulse Duration on Pulse Laser Micro Polishing 

      Vadali, Madhu; Ma, Chao; Duffie, Neil A.; Li, Xiaochun; Pfefferkorn, Frank E. (7th International Conference on MicroManufacturing (ICOMM 2012), 2012-03-12)
      Pulsed laser micro polishing (PL?P) has been shown to be an effective method of polishing micro metallic parts whose surface roughness can approach the feature size. This paper will describe the influence of laser pulse ...
    • Effects of Pulsed Laser Micro Polishing on Microstructure and Mechanical Properties of S7 Tool Steel 

      Morrow, Justin D.; Wang, Qinghua; Duffie, Neil A.; Pfefferkorn, Frank E. (9th International Conference on MicroManufacturing (ICOMM 2014), 2014-03-25)
      The objective of this work is to evaluate the changes in microstructure and mechanical properties of S7 tool steel after surface finishing using pulsed laser micro polishing (PLmP). PLmP has been shown to effectively polish ...
    • Electrochemical Polishing of Microcomponents 

      Berestovskyi, Dmytro; Soriaga, Manuel; Lomeli, Paul; James, Jon; Sessions, Brennon; Xiao, Han; Hung, Wayne (8th International Conference on MicroManufacturing (ICOMM 2013), 2013-03-25)
      Microcomponents can be fabricated by traditional methods like micromilling/drilling, or by nontraditional methods like electrical discharge micromachining (EDM), laser micromachining, or electrochemical micromachining ...
    • An experiment-based investigation on the partitioned distribution of cutting heat and cutting temperature in micro cutting 

      Sawangsri, Worapong; Cheng, Kai (9th International Conference on MicroManufacturing (ICOMM 2014), 2014-03-25)
      This paper presents the scientific understanding of cutting temperature and partitioned heat distribution in micro cutting based on experimental-based investigation on micro cutting titanium (Ti-6al-4v), Aluminium (Al ...
    • Experimental Analysis of Micromilling Cutting Forces on Super Duplex Stainless Steel 

      Mougo, Adriane Lopes; Campos, Fabio de Oliveira; Araujo, Anna Carla (9th International Conference on MicroManufacturing (ICOMM 2014), 2014-03-25)
      Technological development has required the fabrication of miniaturized components in different industry areas, such as electronics, aerospace, automotive, medical and biotechnology. Micromilling aims to produce micro parts ...
    • Experimental Study of the Wear of Diamond Coated Micro End Mills 

      Torres, Christopher D.; Boyat, Alexandra M.; Adiga, Vivekananda P.; Sumant, Anirudha V.; Carpick, Robert W.; Pfefferkorn, Frank E. (5th International Conference on MicroManufacturing (ICOMM 2010)5th International Conference on MicroManufacturing (ICOMM 2010), 2010-04-05)
      The demand for the miniaturization of complex components has led to the growth of manufacturing methods capable of producing truly three dimensional parts using traditional en-gineering materials with favorable mechanical ...
    • 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 ...