Poor surface finish on die and mould transfers the bad quality to processed parts. High roughness is an example of that normally reduced by manual polishing after conventional milling machining process. Therefore, in order avoid disadvantages disadvantage machining, a sequence two operations proposed. The main operation run followed Rotary Ultrasonic Machining Assisted Milling (RUMAM). However,...

A study on ultrasonic vibration-assisted electrical discharge machining (UVEDM) micro-hole, which mainly includes three key designs, was conducted to improve the performance of electric (EDM) micro-holes TC4 titanium alloy. First, a mathematical model for velocity flow field in interelectrode gap established. Consequently, effect presence or absence vibration analyzed. Furthermore, based COMSOL...

The configuration of an autonomous decentralized manufacturing system using multi agent technology is proposed to get more flexibility. In this digital factory, all elements such as machine tool, assembly machine, AGV, and product are installed as agents. The product agents take the initiatives in the system. When a blank workpiece is put on the shop floor, the product agent is dynamically gene...

Ultrasonic peen forming (UPF) is an emerging technology that exhibits great superiority in both its flexible operating modes and the deep residual stress it produces compared with conventional plastic methods. Although ultrasonic transducers longitudinal vibration have been widely studied, they seldom incorporated into UPF devices for machining confined spaces. To meet requirements of this type...

When designing the horn of ultrasonic transducer for rotary machining, traditional analytical method cannot consider complex assembly cross-section horn, resulting in a large final simulation error and design error. At same time, when diameter is too large, size back mass obtained by thin. This paper combines four terminal network finite element method, selects sandwich piezoelectric transducer...

Surface quality including surface roughness and edge chipping is a key process measure in micro ultrasonic machining (Micro-USM) as an efficient process for micromachining of hard and brittle materials. Process parameters such as ultrasonic vibration amplitude, static load, type of tool material, type and size of abrasive particles and slurry concentration can influence the surface quality. How...