K. Matsuoka et al., ONLINE WEAR MONITORING OF MN-ZN FERRITE USING ACOUSTIC-EMISSION, JSME international journal. Series C, dynamics, control, robotics, design and manufacturing, 38(3), 1995, pp. 586-592
On-line estimation of the wear rate of materials subjected to abrasion
has been accomplished using acoustic emission (AE) sensing. The energ
y in the AE signal is directly related to the energy required for mate
rial removal in the abrasion process. The technique has been successfu
lly applied to monitoring the wear of magnetic recording head material
s using lapping tapes over a wide range of wear rates. A methodology h
as been developed to calibrate the AE monitoring system on-line, and t
o estimate the total wear volume. Such a system provides a very powerf
ul, quantitative measurement technique for tribological studies, as we
ll as for on-line machine or process diagnostic applications.