Sökning: "stålformning och ytteknik"

Hittade 4 avhandlingar innehållade orden stålformning och ytteknik.

1. 1. Investigation of topography, adhesion and diffusion in sliding contacts during steel and titanium alloy machining

   Författare :Sara Saketi; Mikael Olsson; Högskolan Dalarna; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Steel Forming and Surface Engineering; Stålformning och ytteknik;

   Sammanfattning : The aim of the present thesis work is to increase the fundamental knowledge of the tribological contact between the cutting tool and the work material in three different cutting operations, i.e. hard milling of cold work tool steels, turning in 316L stainless steel and turning in Ti6Al4V alloy, respectively. LÄS MER

3. 2. Experimental Studies of Deformation Structures in Stainless Steels using EBSD

   Författare :Karin Yvell; Annika Borgenstam; Peter Hedström; Göran Engberg; Johan Moverare; Högskolan Dalarna; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EBSD; Austenitic stainless steels; Duplex stainless steel; In situ tensile test; Grain boundaries; Grain rotation; Grain size distribution; Texture; Strain hardening; Structure-property relationship; High strain rate; Wire rod rolling; Roll forming; Steel Forming and Surface Engineering; Stålformning och ytteknik;

   Sammanfattning : In this thesis, the focus has been the study of deformation structures in stainless steels by using electron backscatter diffraction (EBSD). Via increased knowledge of the evolution of the substructure during deformation, the design and control of the manufacturing process can be improved. LÄS MER

4. 3. Surface integrity and corrosion behavior of stainless steels after grinding operations

   Författare :Nian Zhou; Rachell Pettersson; Ru Lin Peng; Stuart Lyon; Högskolan Dalarna; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stainless steel; stress corrosion cracking; surface integrity; grinding; residual stress; Steel Forming and Surface Engineering; Stålformning och ytteknik;

   Sammanfattning : Stainless steels are widely used in applications where both the mechanical properties of steels and high corrosion resistance are required. There is continuous research to enable stainless steel components to be produced in a more economical way and be used in more harsh environments. LÄS MER

5. 4. Wear of coated and uncoated PCBN cutting tool used in turning and milling

   Författare :Susanne Sveen; Mikael Olsson; Magnus Odén; Urban Wiklund; Högskolan Dalarna; []
   Nyckelord :PCBN; PVD coating; Wear mechanisms; Tool wear; Metal cutting; Steel Forming and Surface Engineering; Stålformning och ytteknik;

   Sammanfattning : This licentiate thesis has the main focus on evaluation of the wear of coated and uncoated polycrystalline cubic boron nitride cutting tool used in cutting operations against hardened steel. And to exam the surface finish and integrity of the work material used. LÄS MER