Sökning: "Cornel Mihai Nicolescu"
Visar resultat 6 - 10 av 14 avhandlingar innehållade orden Cornel Mihai Nicolescu.
6. 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
7. 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
8. Joint Interface Effects on Machining System Vibration
Sammanfattning : Vibration problems are still the major constraint in modern machining processes that seek higher material removal rate, shorter process time, longer tool life and better product quality. Depending on the process, the weaker structure element can be the tool/tool holder, workpiece/fixture or both. LÄS MER
9. Investigation Cooling and Lubrication Strategies for Sustainable Machining of Titanium Alloys
Sammanfattning : The manufacturing sector is one of the most rapidly growing sectors in the industrialized world today. Manufacturing industry is concerned with being more competitive and profitable. LÄS MER
10. Numerical and Experimental Investigations of the Machinability of Ti6AI4V : Energy Efficiency and Sustainable Cooling/ Lubrication Strategies
Sammanfattning : Titanium alloys are widely utilized in the aerospace, biomedical,marine, petro-chemical and other demanding industries due to theirdurability, high fatigue resistance and ability to sustain elevateoperating temperature. As titanium alloys are difficult to machine, dueto which machining of these alloys ends up with higher environmentalburden. LÄS MER