Search for dissertations about: "wear of parts"

Showing result 1 - 5 of 76 swedish dissertations containing the words wear of parts.

  2. 1. The early stage of galling

    Author : Patrik Karlsson; Pavel Krakhmalev; Anders Gåård; Braham Prakash; Örebro universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Galling; Stainless steel; Tool steel; Friction; Sliding wear; SOFS; Tribology; Wear; Materialteknik; Materials Engineering;

    Abstract : In sheet metal forming (SMF) of materials such as stainless steels there is a major problem with transfer and accumulation of sheet material to the metal forming tool surface. The problem is known as galling; a kind of severe adhesive wear, which results in severe scratching of produced parts. READ MORE

  4. 2. Wear in cone crusher chambers

    Author : Mats Lindqvist; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cone crusher; modelling; wear; rock crusher; work hardening;

    Abstract : Cone crushers are widely used in the mining and aggregates industries to reduce the size of blasted rock. A cone crusher consists of a fixed conic liner called concave and inside it a smaller moving liner called mantle. The mantle is suspended on an eccentrically rotating shaft. READ MORE

  5. 3. On the Design and Life Prediction of Transmission Belts Made of Elastomer Composites

    Author : Dag Fritzson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction; Material properties; Elastomer; Composite; Damage; Fatigue; Viscoelastic; Anisotropic; Wear; Constitutive theory; Life prediciton; V-belt; Belt transmission; Rubber;

    Abstract : Next to gear transmissions, belt transmissions are the most important mechanical transmissions. Today, belt design and development is based on extensive application tests of belts in the product development process. There is a need for theory development and design support systems. READ MORE

  6. 4. High Performance Manufacture of Sintered Steel – Critical Aspects of Tooling Performance and Sintered Microstructure

    Author : Sepehr Hatami; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tool Steels; Chromium Alloyed Steel; Modelling; Process Selection; Sinter-Hardening; Atmosphere; Microstructure; Galling; Pressing Dies; Wear;

    Abstract : Steel is the dominant material for the production of structural parts. By means of powder metallurgy (PM) processing, manufacturers have been able to manufacture steel parts with appreciable dimensional accuracy and desirable mechanical properties. READ MORE

  7. 5. 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