Sökning: "Mihai Nicolescu"
Visar resultat 6 - 10 av 23 avhandlingar innehållade orden Mihai Nicolescu.
6. Criteria for Machinability Evaluation of Compacted Graphite Iron Materials : Design and Production Planning Perspective on Cylinder Block Manufacturing
Sammanfattning : The Swedish truck industry is looking for new material solutions to achieve lighter engines with increased strength to meet customer demands and to fulfil the new regulations for more environmentally friendly trucks. This could be achieved by increasing the peak pressure in the cylinders. LÄS MER
7. Improving Machining System Performance through designed-in Damping : Modelling, Analysis and Design Solutions
Sammanfattning : With advances in material technology, allowing, for instance, engines to withstand higher combustion pressure and consequently improving performance, comes challenges to productivity. These materials are, in fact, more difficult to machine with regards to tool wear and especially machine tool stability. LÄS MER
8. Theoretical and experimental study of tooling systems : passive control of machining vibration
Sammanfattning : Vibration control has been and still remains a subject of primary importance in modern manufacturing industry. To be able to remove high volumes of material in shorter time as well as to be able to get the right quality of the parts at the first time are goals that many shops would like to achieve. LÄS MER
9. Controlling the dynamic characteristics of machining systems through consciously designed joint interfaces
Sammanfattning : The precision of machining systems is ever increasing in order to keep up with components’ accuracy requirements. At the same time product variants areincreasing and order quantities are decreasing, which introduces high demands on the capability of machining systems. LÄS MER
10. High dynamic stiffness nano-structured composites for vibration control : A Study of applications in joint interfaces and machining systems
Sammanfattning : Vibration control requires high dynamic stiffness in mechanical structures for a reliable performance under extreme conditions. Dynamic stiffness composes the parameters of stiffness (K) and damping (η) that are usually in a trade-off relationship. This thesis study aims to break the trade-off relationship. LÄS MER