Attempt of Dual AE Sensing in Micro Machine Tools

Measuring Concept and Application Example to Micro Lathe Machine

Abstract

Dual acoustic emission (AE) sensing is proposed to simultaneously monitor the machining state of an micro machine tool and the machine tool itself: AE is an elastic stress wave generated by material deformation and fracture, and is measured not only at the machining point but also from the bearings, etc. The AE signals can be analysed, extracted and feedbacked to maintain optimum machining conditions. In this report, the measuring concept and application example to a micro lathe are described.