Sökning: "Cutting"

Visar resultat 1 - 5 av 419 avhandlingar innehållade ordet Cutting.

  1. 1. Tribology at the Cutting Edge A Study of Material Transfer and Damage Mechanisms in Metal Cutting

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Julia Lundberg Gerth; Uppsala universitet.; [2012]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tribology; Metal cutting; Gear hobbing; Wear; Coating; Residual stress; Material transfer; Steel; Teknisk fysik med inriktning mot tribomaterial; Engineering Science with specialization in Tribo Materials;

    Sammanfattning : The vision of this thesis is to improve the metal cutting process, with emphasis on the cutting tool, to enable stable and economical industrial production while using expensive tools such as hobs. The aim is to increase the tribological understanding of the mechanisms operating at a cutting edge and of how these can be controlled using different tool parameters. LÄS MER

  2. 2. Tool Life and Cutting Data Modelling in Metal Cutting : Testing, Modelling and Cost Performance

    Detta är en avhandling från Department of Mechanical Engineering, Lund University

    Författare :Daniel Johansson; Lund University.; Lunds universitet.; Lund University.; Lunds universitet.; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; metal cutting; tool life; tool wear; cutting data; process cost; Colding model; part cost;

    Sammanfattning : One of the most important production processes in industry is metal cutting. If a product is not a machined metal part, it is likely that the mould, die and tools used to produce the product or parts of the product are machined. LÄS MER

  3. 3. Laser cutting and piercing: Experimental and theoretical investigation

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Jetro Pocorni; Luleå tekniska universitet.; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Systems Engineering; Produktionsutveckling; Laser cutting; laser piercing; efficiency; fibre laser; CO2 laser; high speed imaging;

    Sammanfattning : This thesis concerns experimental investigations of laser cutting and piercing, with theoretical and practical discussions of the results. The thesis is made up of an introduction to laser cutting and six scientific Papers. LÄS MER

  4. 4. Workpiece steels protecting cutting tools from wear A study of the effects of alloying elements on material transfer and coating damage mechanisms

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Toshiharu Aiso; Uppsala universitet.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Metal cutting; Steel; Cutting tools; Transfer; Coating; Sliding; Teknisk fysik med inriktning mot tribomaterial; Engineering Science with specialization in Tribo Materials;

    Sammanfattning : The vision of this thesis is to improve the machinability of workpiece steels. Workpiece material frequently transfers to the cutting tools during machining, and the transfer layers then forming on the tools may give both good and bad effects on machining performance and tool life. LÄS MER

  5. 5. Methods and Models for Cutting Data Optimization

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Sören Hägglund; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tool Life; Cutting Forces; Tool Replacement Coordination; Process Cost; Tooling Cost; Cutting Data Optimization; Surface Finish; Cycle Time Balancing;

    Sammanfattning : Traditional optimization of cutting processes refers to minimizing cost or minimizing time (minimumcost or maximum production rate). These criteria apply to the cutting speed via well-known equationsfor economic tool life and tool life for maximum production rate. Quite often speed is focused firstwhen after some suitable feed value is chosen. LÄS MER