Search for dissertations about: "High speed machine tool"

Showing result 1 - 5 of 22 swedish dissertations containing the words High speed machine tool.

2. 1. Friction in threaded fasteners : Influence of materials and tooling

   Author : Mayank Kumar; Sergei Glavatskih; Erik Persson; Ellen Bergseth; Ian Sherrington; Robert Wood; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction; Coating; Surface topography; Tightening speed; Additive manufacturing; Tightening condition; Assembly tool; Material; Friktion; Ytbehandling; Yttopografi; Åtdragningshastighet; Additiv tillverkning; Åtdragningsförhållanden; Monteringsverktyg; Material; Machine Design; Maskinkonstruktion;

   Abstract : Threaded fasteners represent the most common type of machine element, with a unique function that facilitates ease of assembly and disassembly. This ease of disassembly allows machine parts to be reused, refurbished, and recycled. READ MORE

4. 2. Performance analysis of a low-speed high-torque hydrostatic transmission unit

   Author : Håkan Olsson; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

   Abstract : This thesis concerns a study of the performance of an industrial low-speed high-torque hydrostatic drive system. This type of hydrostatic transmission is commonly used in continuous operation in a wide range of heavy-duty drive applications. In many applications the transmissions have to compete with e.g. READ MORE

5. 3. High Temperature Friction and Wear in Press Hardening

   Author : Sergej Mozgovoy; Manel Rodriguez Ripoll; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

   Abstract : In the automotive industry, press hardening is usually employed to produce safety orstructural components from advanced high–strength steels. This hot forming process, andthermomechanical forming processes in general, is highly dependent on friction betweentool and workpiece as friction affects and controls the deformation of the workpiece. READ MORE

6. 4. Non-contact measurements and modelling of milling machine tool vibrations

   Author : Matti Rantatalo; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

   Abstract : This thesis concerns the development of non-contact measurement methods and analysis of rotors. The methods have been verified and applied to milling machine spindles in order to investigate the speed dependency in the milling machine spindle dynamic. The research was financed by the Swedish Agency for Innovation Systems (Vinnova). READ MORE

7. 5. On the role of microstructure in wear of nanostructured carbide-free bainitic steels

   Author : Pouria Valizadeh Moghaddam; Jens Hardell; Esa Vuorinen; Braham Prakash; Mikael Olsson; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tribology; Wear; Microstructure; Carbide-free bainite; Nanostructured; Retained austenite; Steel; High temperature; Machine Elements; Maskinelement;

   Abstract : The significance of steel production for the development of sustainable society and economy is immense. Today’s fast growing global economy poses an increasing demand for improving the properties of steel. READ MORE