Undesirable chatter is one of the key problems that restrict improvement robot milling quality and efficiency. The prediction stability, which used to guide selection process parameters, an effective method avoid in milling. Due weak stiffness robot, deformation caused by forces becomes unavoidable problem, will change tool–workpiece contact area affect stability prediction. However, it often s...

Abstract In our previous study on regenerative and frictional cutting dynamics, a new model considering both time-delayed effect Stribeck as sources of instability has been proposed [7], which improved the prediction linear stability in zone low velocity. Based model, this investigation explores complex nonlinear dynamics. More specifically, criticality Hopf bifurcation boundaries is studied by...

Titanium alloy and its thin-walled structures are widely used in the aerospace field. Aiming at processing chatter difficult-to-machine problem of titanium workpieces, rotary ultrasonic milling technology (RUM) is employed to restrict machining vibration this paper. Firstly, for describing dynamic characteristics, web with low stiffness equivalent a mass-spring-damping system three degrees free...

Grinding is one of the most widely used material removal methods at end many process chains. force related to almost all grinding parameters, which has a great influence on rate, dimensional and shape accuracy, surface subsurface integrity, thermodynamics, dynamics, wheel durability, machining system deformation. Considering that can be detect wear, energy calculation, chatter suppression, cont...

. This paper outlines a strategy for the active control of the self-excited vibration of machine tools which arises when metal is turned, ground or milled. The requisite sensor and actuators for successful operation of such a scheme are outlined. Examples of the results of typical sensors are illustrated in a brief review of previous work. A simple single degree of freedom model of chatter is s...

To improve machining efficiency and product precision in scroll manufacturing, we studied three adaptive milling processes: feed rate planning, chatter suppression measures, optimization of parameters during the rough, semi-fine, fine scrolls. In rough scrolls, planning was used to compute cutting area per cutter tooth real time order adjust optimize material removal (MRR) under a given maximum...