Essays about: "tribological testing"

Showing result 16 - 20 of 27 essays containing the words tribological testing.

  1. 16. Graphene as an aqueous Lubricant

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Nishant Katyal; [2017]
    Keywords : Graphene; Lubrication; triborheometer; 4-ball tribometer; Mini Traction Machine; friction reduction; wear reduction; Grafen Smörjning; triborometer; 4-kuletribometer; mini-traktionsmaskin; friktionsminskning; nötningsreduktion;

    Abstract : The possible use of graphene and its derivatives dissolved in water as a green lubricant is an interesting avenue of research from tribological perspective. In this study, a highly concentrated stock solution of aqueous Graphene employing Polyethylene Glycol(PEG) as surfactant was diluted using proportionate volumes of De-Ionized (D.I. READ MORE

  3. 17. Tribological testing of top hammer drill buttons

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Carl Johan Hassila Karlsson; [2016]
    Keywords : tribology; wear; cemented carbides; WC-Co; sandstone; granite; rock drilling; top hammer drilling; wear test; friction;

    Abstract : In the present work further modifications are implemented to an existing test setup for the evaluation of the wear of cemented carbide drill buttons in rock drilling applications. The test setup has been evaluated in previous diploma works, which has shown that the test successfully mimics the wear seen in rock drilling applications. READ MORE

  4. 18. Tribological evaluation of the contact between upper compression ring and cylinder liner with different surface coatings

    University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik

    Author : Pär Wassborg; [2016]
    Keywords : piston ring; cylinder liner; wear; friction; grey cast iron; titanium oxide; chromium oxide;

    Abstract : The constant pursuit in the automotive industry to increase the engines performance, new solutions are always developed and tested to reduce the friction and increase the efficiency in the engine. One component that contributes to friction losses is the piston ring pack where the top compression stands for up to 40 %. READ MORE

  5. 19. Application Cases and Integration of Additive Manufacturing Processes into Conventional Process Chains by the Example of Tool Repair Using the Con-trolled Metal Build-Up Process

    University essay from KTH/Industriell produktion

    Author : Felix Wimmer; [2015]
    Keywords : ;

    Abstract : In the first part of this thesis an overview of the most common Additive Manufacturing (AM) processes and a valid classification scheme outside of the classification of conventional ma-chining processes is presented. Advantages and shortcomings of these processes are briefly explained and application cases from the industry are given. READ MORE

  6. 20. Comparison of Interfacial Fluid Pressures Generated Across Common Shoe-Floor Friction Testing Apparatuses

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Arian Iraqi; [2013]
    Keywords : Slips; Falls; Slipmeter; Fluid pressure measurement; Hydrodynamic lubrication; Tribological fidelity. ;

    Abstract : Falls from slips are the leading causes of occupational injuries. A novel technique is proposed in order to evaluate the tribological behavior of the slip-testing devices by comparing fluid pressures. READ MORE