Search for dissertations about: "polishing"

Showing result 1 - 5 of 67 swedish dissertations containing the word polishing.

  2. 1. Characterisation of Functional Pressing Die Surfaces

    Author : Johan C Berglund; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; functional correlation; functional surface; functional filtration; pressing die; multi-scale analysis; characterisation; finish milling; texture anisotropy; polishing; surface topography;

    Abstract : The manufacture of dies and moulds is a critical aspect of many production systems since the manufacturing and try-out of new dies and moulds often is essential in determining the lead-time and quality of a new production system. In the automotive industry, many new car models are introduced each year and for each of these models, a new set of pressing dies has to be designed and manufactured. READ MORE

  4. 2. Methods for Characterisation of Pressing Die Surfaces

    Author : Johan C Berglund; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finish milling; scale-sensitive fractal analysis; surface characterisation; polishing; functional correlation; : pressing dies; functional filtration; surface roughness; functional surface;

    Abstract : Design and manufacture of dies and moulds is a critical aspect of many production systems since the manufacturing and try-out of new dies and moulds often is essential in determining the lead-time and quality of a new production system. In the automotive industry, many new car models are introduced each year and for each of these models, a new set of pressing dies has to be designed and manufactured. READ MORE

  5. 3. Sheet metal trimming dies – characterisation methods of geometry and surface topography and the influence on wear

    Author : Per Jonsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finish milling; wear measurement; functional surface; trimming dies; scale-sensitive fractal analysis; surface roughness; polishing; surface characterisation; high strength steel; tool wear;

    Abstract : In recent years, the life cycle of car models has decreased from 7 to 5 years and the volume sizes are becoming shorter in the automotive industry. The increasing number of car models introduced to the market means that a fewer number of parts must pay the costs for the tool/die design and manufacturing. READ MORE

  6. 4. Studies of surface treatments of stainless steel for improved corrosion resistance

    Author : Daniel Wallinder; KTH; []
    Keywords : stainless steel; iron; chromium; passivity; passive film; pickling; polishing; passivation; bright-annealing; XPS; SIMS; EIS; potentiostatic polarization; potentiodynamic polarization; aqueous corrosion; localized corrosion; atmospheric corrosion; hi;

    Abstract : .... READ MORE

  7. 5. Chemical Mechanical Polishing of Silicon and Silicon Dioxide in Front End Processing

    Author : Markus Forsberg; Jörgen Olsson; Jyrki Molarius; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; chemical mechanical polishing; chemical mechanical planarization; silicon; silicon dioxide; front end; shallow trench isolation; deep trench isolation; bipolar transistor; BiCMOS; wafer bonding; Elektronik; Electronics; Elektronik;

    Abstract : Chemical mechanical polishing (CMP) has been used for a long time in the manufacturing of prime silicon wafers for the IC industry. Lately, other substrates, such as silicon-on-insulator has become in use which requires a greater control of the silicon CMP process. READ MORE