The application of variable helical end mills to the milling titanium alloys can suppress regeneration effect during machining process and ensure stability milling. However, due their special geometry, characteristics are also different. In this paper, alloy with a helix mill is taken as research object, force, deeply studied. Firstly, feed per tooth cutting thickness model were established, fo...

The dry lubricated bump-type foil air bearing enables a carrying load capacity due to pressure build up in convergent film. Since the provides low power dissipation above lift-off speed and flexible an adaptivity against high temperatures, manufacturing errors or rotor growth, is particular suitable for rotating machineries. corresponding dynamic behavior depends on operational parameters, of s...

With their successful applications in handling, spraying, arc welding and other processing fields, industrial robots are gradually replacing traditional CNC machine tools to complete machining tasks due the wider working envelope higher flexibility. Aiming at chatter problem, a robotic longitudinal-torsional ultrasonic milling method with variable force coefficient is proposed this paper. Takin...