Essays about: "Galling"

Showing result 6 - 10 of 12 essays containing the word Galling.

  1. 6. Lubrication of the cutting tools in a stainless finishing line

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Johan Ek; [2016]
    Keywords : ;

    Abstract : In this thesis work the possible benefits of implementing a lubricant in the process of cutting stainless steel has been investigated. It has also be investigated how the lubricant could lower the wear rate in the cutting process. READ MORE

  2. 7. Improvement in the forming process of support brackets vulnerable to cracking : Problem solving in the field of  sheet metal forming

    University essay from KTH/Materialvetenskap

    Author : Martin Lind; [2013]
    Keywords : ;

    Abstract : This report has been written to summarize my work, regarding a will to improve the manufacturing process of a support bracket used for cable ladders. The company concerned in the project have experienced several problems with severe cracking in a flange radius throughout the years of production. READ MORE

  3. 8. Influence of tool steel carbide orientation on sliding wear

    University essay from Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Johanna Meseret Berhe Larsson; [2013]
    Keywords : ;

    Abstract : For SMF industry, galling of tool in SMF operation during forming of stainless steel is a major concern, this increase the interest to study influence of tool microstructure on galling. In the present work, ingot cast AISI D2 were evaluated concerning wear mechanisms and critical sliding distance against austenitic stainless steel sheet in lubricated sliding condition at different contact pressures using a slider-on-flat-surface (SOFS) tribometer for carbide phases oriented in three different directions. READ MORE

  4. 9. Effects of tempering on corrosion properties of high nitrogen alloyed tooling steels in pyrolysis oil

    University essay from KTH/Korrosionslära

    Author : Ashkan Reza Gholi; [2011]
    Keywords : High nitrogen alloyed tooling steel; Pyrolysis; Tempering process; Primary and secondary chromium precipitates; Pitting corrosion; General corrosion;

    Abstract : Nowdays biofuels are becoming a good alternative for petroleum fuels due to environmental issues like high carbon dioxide emission and increasing vehicles population, together with the high price and fast depletion of petroleum oils. This project aims to investigate the corrosive effects of wood Pyrolysis oil on a special grade of nitrogen alloyed tooling steels to be used for injector nozzles in Diesel engines, where high stress and strain encounter high acidity and corrosivity of the Pyrolysis oil and cause breakdown over short periods. READ MORE

  5. 10. Nanotribological characterization of advanced tool steels

    University essay from Karlstads universitet/Avdelningen för maskin- och materialteknik

    Author : Alexander Norrby; [2010]
    Keywords : ;

    Abstract :    Tribological  problems  of  tool–work  piece  interaction  is  a  key  aspect  influencing  product quality,  process  performance  and  tool  lifetime.  For  example,  in  sheet  metal  forming operations, sliding contact may cause adhesive wear of sheet materials with build up of worn material on the tool surface. READ MORE