Sökning: "Mihai Nicolescu"

Visar resultat 16 - 20 av 23 avhandlingar innehållade orden Mihai Nicolescu.

1. 16. 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. 17. Condition monitoring of machine tools and machining processes using internal sensor signals

   Författare :Jari Repo; Mihai Nicolescu; Dragos Axiente; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; condition monitoring; machine tool; machining process; milling; position encoders; signal analysis; Mechanical engineering; Maskinteknik; Materials science; Manufacturing and materials engineering;

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

4. 18. An investigation into improving titanium machining competitivness

   Författare :Nico Treurnicht; Mihai Nicolescu; Knut Sörby; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; titanium; PCD; aerospace; carbide; cooling; lubrication; Manufacturing engineering; Produktionsteknik;

   Sammanfattning : .... LÄS MER

5. 19. 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

7. 20. Principles for modelling of manufacturing sequences

   Författare :Mats Werke; Mihai Nicolescu; Carin Andersson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Production Engineering; Industriell produktion;

   Sammanfattning : The manufacturing sequence influence, to a large extent, component properties like fatigue life, shape accuracy and manufacturability. By simulating the manufacturing sequence, using numerical or empirical models, and extracting important accumulated data, like residual stress, hardness and shape, the possibilities of early analysis of a design concept and the associated manufacturing sequence will increase. LÄS MER