Sökning: "machinability"

Visar resultat 1 - 5 av 47 avhandlingar innehållade ordet machinability.

  1. 1. Characterization of factors interacting in CGI machining machinability - material microstructure - material physical properties

    Författare :Anders Berglund; Cornel Mihai Nicolescu; Tero Stjernstoft; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CGI; Compacted Graphite Iron; milling; cast iron; machinability; material microstructure; material physical properties; CGI; kompaktgrafitjärn; fräsning; gjutjärn; skärbarhet; mikrostruktur; materialegenskaper; TECHNOLOGY Industrial engineering and economy Manufacturing engineering and work sciences Manufacturing engineering; TEKNIKVETENSKAP Industriell teknik och ekonomi Produktion och arbetsvetenskap Produktionsteknik;

    Sammanfattning : The Swedish truck industry is forced to find new material solutions to achieve lighter engines with increased strength. Customers and new environmental regulations demand both higher specific power and more environmentally friendly trucks, and this places a rising pressure on the manufactures. LÄS MER

  2. 2. On the Machinability of Ductile and Strain Hardening Materials - Models and Methods for Analyzing Machinability

    Detta är en avhandling från Division of Production and Materials Engineering

    Författare :Fredrik Schultheiss; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Alloy 718; Ti6Al4V; Duplex stainless steel; Machinability; Minimum chip thickness; Contact condition; Surface topography; Tool wear; Part cost; Sustainable machining; Polar diagram.;

    Sammanfattning : As quality and performance demands on today’s products increases, more and more advanced materials are being used during modern production. The problem is however that this in turn place new demands on the machining processes utilized. LÄS MER

  3. 3. On the Machinability of High Performance Tool Steels

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Natalia Sandberg; Sture Hogmark; Jens Bergström; [2012]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hot work tool steels; alloying composition; machinability; Materialvetenskap; Materials Science;

    Sammanfattning : The continuous development of hot forming tool steels has resulted in steels with improved mechanical properties. A change in alloying composition, primarily a decreased silicon content, makes them tougher and more wear resistant at elevated temperatures. However, it is at the expense of their machinability. LÄS MER

  4. 4. The Metallurgical Aspects of Machinability in Prehardened Mould Steels

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Seyyed Mohammad Hamed Hoseiny; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bainitic structure; Tool Life; Cutting Temperature; Cutting Force; Machinability; Microstructure; Tempered Martensite; Plastic Mould Steels;

    Sammanfattning : High economical efficiency obtained by utilizing prehardened mould steels in plastic mould making has increased the usage of these types of steels to a great extent. Generally, prehardened mould steels are applied for large moulds and moulds for moderate production runs, and one of the advantages of using this type of steel is that no heat treatment is necessary for putting the mould in use. LÄS MER

  5. 5. Criteria for Machinability Evaluation of Compacted Graphite Iron Materials Design and Production Planning Perspective on Cylinder Block Manufacturing

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Anders Berglund; Cornel Mihai Nicolescu; Leonardo De Chiffre; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Metal Cutting; Compacted Graphite Iron CGI ; Machinability; Design of Experiments DoE ; Inverse Finite Element FE Modelling; Simulated Milling Method; SRA - Production; SRA - Produktion;

    Sammanfattning : The Swedish truck industry is looking for new material solutions to achieve lighter engines with increased strength to meet customer demands and to fulfil the new regulations for more environmentally friendly trucks. This could be achieved by increasing the peak pressure in the cylinders. LÄS MER