...Nooman Ben Khalifa; A. Erman Tekkaya A new innovative direct extrusion process, helical profile extrusion (HPE) is presented, which increases the flexibility of aluminum profile manufacturing processes. The application fields of such profiles can be seen in screw rotors for compressors and pumps...

...T. Hussain; Z. Yang; A. A. Popov; S. McWilliam For assembly of rotating machines, such as machining tools, industrial turbomachinery, or aircraft gas turbine engines, parts need to be assembled in order to avoid internal bending of the geometric axis of the rotor to meet functional and vibration...

... on a prototype integrally bladed rotor. 29 11 2006 07 09 2007 30 01 2008 Example of the five-axis milling of a typical jet-engine impeller (source: CGTech VERICUT -TM) The impellers are made from titanium or nickel alloys due to their high mechanical and thermal strength. The thin...

...Shiyu Zhou; Jianjun Shi Since many rotor systems normally operate above their critical speeds, the problem of accelerating the machine through its critical speeds without excessive vibration draws increasing attention. This paper provides an analytical imbalance response of the Jeffcott rotor under...