Sökning: "micro tools"

Visar resultat 1 - 5 av 181 avhandlingar innehållade orden micro tools.

  1. 1. Micro-grinding of titanium

    Författare :Mohammadali Kadivar; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dressing; grinding; tool topography.; modelling; Micro machining;

    Sammanfattning : Titanium and its alloys are difficult-to-cut materials, commonly used in several application fields, such as: medicine, aerospace, automotive and turbine manufacturing due to their biocompatibility, corrosion resistance, excellent mechanical and thermal properties, and light weight. However, its machining is associated with several difficulties, such as high tool wear, low surface quality, high cutting forces and high costs. LÄS MER

  3. 2. Micro-scale studies of wear

    Författare :Rickard Gåhlin; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Wear; micro-scale; methods; fundamental studies; AFM; micromechanical; Materialvetenskap; Materials science; Teknisk materialvetenskap; materialvetenskap; Materials Science;

    Sammanfattning : The development of materials for tribological components is constantly striving to more sophisticated properties, specialised for specific applications. This progress requires and depends to a large extent on a parallel development of the theoretical knowledge of wear and on development of the experimental tools for investigating wear in the research lab as well as in the field. LÄS MER

  4. 3. Microfluidics in Surface Modified PDMS : Towards Miniaturized Diagnostic Tools

    Författare :Sara Thorslund; Fredrik Nikolajeff; Jonas Bergquist; Elisabeth Verpoorte; Uppsala universitet; []
    Nyckelord :Materials science; µTAS; micro total analysis system; PDMS; poly dimethylsiloxane ; microfluidics; heparin; blood filtration; on-chip; ESI-MS; desalting; QCM-D; biocompatible; CD4; capillary flow; lab-on-chip; microfabrication; enrichment; point-of-care; hydrophilic; oxidation; Materialvetenskap;

    Sammanfattning : There is a strong trend in fabricating miniaturized total analytical systems, µTAS, for various biochemical and cell biology applications. These miniaturized systems could e.g. gain better separation performances, be faster, consume less expensive reagents and be used for studies that are difficult to access in the macro world. LÄS MER

  5. 4. Integrated Micro-Analytical Tools for Life Science

    Författare :Sara Bergström; Karin Markides; Marit Andersson; Marja-Liisa Reikkola; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytical chemistry; Microdialysis; Multidimensional separation; Liquid chromatography LC ; Capillary electrophoresis CE ; Electrospray ionisation ESI ; Mass spectrometry MS ; Microchip device; Free drug concentration; Screening of microdialysates; Pattern recognition; Analytisk kemi; Analytical chemistry; Analytisk kemi;

    Sammanfattning : Advances in life science require knowledge of active molecules in complex biological systems. These molecules are often only present for a certain time and at limited concentrations. LÄS MER

  7. 5. On Transfer of Work Material to Tools

    Författare :Jannica Heinrichs; Staffan Jacobson; Urban Wiklund; Uppsala universitet; []
    Nyckelord :Tribology; Friction; Forming; Cutting; Galling; Material transfer; Tribological coatings; Surface finish; Micro mechanisms; Aluminium; Materialvetenskap; Materials Science;

    Sammanfattning : Bulk forming and cutting are widely used to shape metals in industrial production. Bulk forming is characterized by large strains, extensive plastic deformation and large surface expansions. Cutting is characterized by high speeds, high pressures and high temperatures. LÄS MER