Sökning: "cutting operation"

Visar resultat 21 - 25 av 52 avhandlingar innehållade orden cutting operation.

1. 21. Machining of wood : cutting data and its effect on the work environment and surface quality

   Författare :Jan Palmqvist; Linköpings universitet; []
   Nyckelord :;

   Sammanfattning : Machining using circular tools is very frequent in the wood manufacturing industry. Such machinery is very efficient but also leads to problems, for example in the indoor factory environment, in the form of unhealthy wood dust emissions. Another example is imperfections in wood products such as unacceptable surface quality. LÄS MER

3. 22. Steel characteristics and their link to chip breaking and tool wear in metal cutting

   Författare :Niclas Ånmark; Andrey Karasev; Pär Göran Jönsson; Thomas Björk; Mikael Olsson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; machinability; steel; non-metallic inclusions; skärbarhet; stål; icke-metalliska inneslutningar; Teknisk materialvetenskap; Materials Science and Engineering;

   Sammanfattning : The vision of this thesis is to study how it is possible to obtain optimised workpieces during metal cutting processes in industry. Specifically, the work is aimed to increase the understanding between the steel characteristics and their link to the chip breaking and tool wear during metal cutting. LÄS MER

4. 23. Analysis of entry phase in intermittent machining

   Författare :Adnan Agic; Tomas Beno; Jan-Eric Ståhl; Mahdi Eynian; Högskolan Väst; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Entry; Cutting force; Cutting edge geometry; Acceleration; Production Technology; Produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik;

   Sammanfattning : Cutting forces and vibrations are essential parameters in the assessment of a cutting process. As the energy consumption in the machining process is directly affected by the magnitude of the cutting forces it is of vital importance to design cutting edges and select process conditions that will maintain high tool performance through reduced energy consumption. LÄS MER

5. 24. Edge Geometry Effects on Entry Phase by Forces and Vibrations

   Författare :Adnan Agic; Tomas Beno; Jan-Eric Ståhl; Mahdi Eynian; T.H.C. Childs; Högskolan Väst; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Entry; Cutting force; Cutting edge geometry; Acceleration; Production Technology; Produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik;

   Sammanfattning : Intermittent machining is in general strongly related to the large impacts in the entry phase and related vibrations. The influence of the impact forces and vibrations on the cutting process is dependent on workpiece material, structural properties of the tool-workpiece system, cutting edge geometries and cutting parameters. LÄS MER

7. 25. Rock Mass Characterisation Using Drill Performance Monitoring : Problems, Analysis challenges and Limitations

   Författare :Rajib Ghosh; Piyush Rai; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance Engineering;

   Sammanfattning : In open pit mining, it is important to know as much information as possible about rock masses to be mined for more cost-effective mining operation. In rock engineering perspective, information about rock mass characteristics usually includes hardness of the rock, geological features, fractures, faults, ore contacts, water bearing stratum. LÄS MER