کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
781884 1464540 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wear estimation by testing the elastic behavior of tool surface
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Wear estimation by testing the elastic behavior of tool surface
چکیده انگلیسی

Impedance and Lamb wave structural health monitoring (SHM) techniques are two common approaches used to successfully monitor the integrity of a variety of structures. In this paper, the feasibility of applying both methods for monitoring tool wear is investigated. Additionally, the surface response to excitation (SuRE) was investigated using spectrum analyzers an alternative to the costlier impedance method. Three approaches were used to monitor the condition of both new and artificially worn drill bits. Artificial degradation of the drill bit cutting edges was necessary to avoid any possible data contamination from accidental damage to the sensors or wiring in a harsh machining environment. The estimated magnitude characteristics found from the impedance and spectrum analyzers correctly distinguished between new and worn tools. Lamb wave characteristics were represented by the envelopes of the propagated signal. The S-transformation was then used to obtain the envelope of the harmonic component of the signal at the excitation frequency. The envelopes were nearly identical at similar tool wear levels, and envelope characteristics changed significantly when Lamb wave reflections reached the sensor from the worn cutting edges. The study indicated that each of the three approaches used successfully detected tool wear.


► Tool wear estimation using structural health monitoring techniques (SHM).
► The performances of the following methods were tested.
► Impedance, surface response to excitation (SuRE), and Lamb wave.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Machine Tools and Manufacture - Volume 51, Issues 10–11, October–November 2011, Pages 745–752
نویسندگان
, , , , , , ,