Sökning: "Cornel Mihai Nicolescu"

Visar resultat 11 - 14 av 14 avhandlingar innehållade orden Cornel Mihai Nicolescu.

  1. 11. Condition Monitoring in Machining Using Internal Sensor Signals

    Författare :Jari Repo; Cornel Mihai Nicolescu; Terje Lien; Högskolan Väst; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Condition monitoring; machine tool; machining process; milling; position encoders; tool wear detection; signal analysis; Manufacturing and materials engineering; Produktions- och materialteknik;

    Sammanfattning : Condition monitoring of critical machine tool components and machining processes is a key factor to increase the availability of the machine tool and to achieve a more robust machining process. Any failure in the machining process and machine tool components may have negative effects on the final produced part. LÄS MER

  3. 12. Strategies for Reducing Vibrations during Milling of Thin-walled Components

    Författare :Bertil Wanner; Cornel Mihai Nicolescu; Thomas Björk; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Milling; vibrations; chatter; stability; prediction; thin-wall; Inconel 718; Manufacturing and materials engineering;

    Sammanfattning : Factors such as environmental requirements and fuel efficiency have pushed aerospace industry to develop reduced-weight engine designs and thereby light-weight and thin-walled components. As component wall thickness gets thinner and the mechanical structures weaker, the structure becomes more sensitive for vibrations during milling operations. LÄS MER

  4. 13. Theoretical and experimental studies of a single tooth milling process

    Författare :Mathias Werner; Cornel Mihai Nicolescu; Lars Nyborg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hobbing; single tooth milling test; TiN; High speed Steel HSS ; wear mechanisms; cutting force; cutting edge preparation; tool surface preparation; FEM cutting model;

    Sammanfattning : The industrial development of metal cutting processes in gear manufacturing aims at continuously increasing productivity, including increased tool reliability. Basically, the parameters that have an influence on the cutting processes should be known and possible to control.Gear manufacturing is highly important for the automotive industry. LÄS MER

  5. 14. An Analysis of Machining System Capability and Its Link with Machined Component Quality

    Författare :Tomas Österlind; Cornel-Mihai Nicolescu; Tatar Kourosh; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machining System Capability; Elastic Linked System; Spiral Bevel Gear Face Milling; SRA - Production; SRA - Produktion;

    Sammanfattning : Machining components out of tolerances is of no use in competitiveproduction. The machining system sets the limitations of dimensionalaccuracy and surface quality of a machined component. The capabilityof the machining system describes these limits in terms of specifiedvalues. LÄS MER