Tool Wear Emitted Sound Data

Citation Author(s):
Submitted by:
Emerson Raja Joseph
Last updated:
Fri, 05/03/2024 - 11:40
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A PCB 130D20 microphone is kept in a stand and facing towards the tool tip to capture the emitted sound. The microphone is connected to the computer through a specially designed signal conditioner. GoldWave software is used to record the captured sound with sampling frequency set to 44100Hz. A series of machining experiments were conducted on a Turning machine(XLTURN from MTAB) with Carbide Insert and aluminium work piece of 38mm diameter. Throughout the experiment a constant feed rate set at 0.5 mm/rotation was uniformly maintained. First, the freerunning sound for the spindle rotational speed of 400 rev/min was recorded, without the machining operation. Keeping the spindle rotational speed at 570 rev/min, the sound emitted due to machining with a fresh tool was recorded separately for the depth of cut of 1 mm. This recording process was repeated separately for slightly worn tool with 0.2mm flank wear and severely worn tool with 0.4mm flank wear]. The 12-second-long sound signal is split into 12 one second sound signals for the subsequent signal processing using HHT. Each one second signal contains 44100 sampling data.


 Each one second signal contains 44100 sampling data.

Funding Agency: 
Multimedia University, Malaysia