Search for dissertations about: "TaN"

Showing result 6 - 10 of 88 swedish dissertations containing the word TaN.

  2. 6. Modeling of drill string deflection for precision drilling in mines : theoretical and laboratory studies

    Author : Xiangchun Tan; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Abstract : .... READ MORE

  4. 7. Modelling of drill string buckling and tool indentation in rock drilling and fragmentation

    Author : Xiangchun Tan; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Abstract : In rock drilling, quality of drill hole and efficiency of drilling are two important aspects of great concern to drill operators and manufacturers. The first part of the thesis deals with the deviation of blast holes. READ MORE

  5. 8. Analysis and modelling of plastic bending processes

    Author : Zheng Tan; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Systems Engineering; Produktionsutveckling;

    Abstract : It is well known that anisotropic properties of material allect forming of sheet metals and that non-homogeneous deformation across thickness of a bend gives rise to residual stresses. The interaction between material and process parameters determines, in a very complex manner, the formability of material. READ MORE

  6. 9. Computational analysis of stress and strain in sheet metal formning

    Author : Zheng Tan; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Systems Engineering; Produktionsutveckling;

    Abstract : .... READ MORE

  7. 10. Modeling of Initial Mold Filling in Uphill Teeming Process Considering a Trumpet

    Author : Zhe Tan; Pär Jönsson; Robert Eriksson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gating system; uphill teeming; ingot casting; swirl blade; flow pattern; realizable k-ε model; CFD; mathematical modeling.;

    Abstract : The flow pattern in the uphill teeming process has been found to be closely related to the quality of ingots and further to affect the yield of ingot production, which is crucial for the steel making process. The formation of non-metallic inclusion and entrapment of mold flux has been considered to be affected by the flow pattern in the gating system and molds by many previous researchers. READ MORE