Cutter wear monitoring method based on current and acoustic emission compound signals
A technology of acoustic emission signals and tool wear, which is applied in the field of tool wear monitoring based on current and acoustic emission composite signals, can solve the problems of low stability and reliability of acoustic emission signal monitoring
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[0061] The present invention will be further elaborated below in combination with specific embodiments.
[0062] The detection principle of the acoustic emission (Acoustic Emission, AE) signal that reflects the wear state of the turning tool proposed by the present invention is as follows: figure 1 As shown: the acoustic emission sensor 2 is directly installed on the handle of the turning tool 1 to reduce the large attenuation of the acoustic emission signal when it propagates between the joint surfaces. The acoustic emission signal generated by the turning tool 1 during the cutting process passes through the signal successively Amplifier 4, anti-aliasing filter 5 and A / D converter I6 are stored in computer 7 for subsequent processing and analysis;
[0063] The described acoustic emission signal processing and analysis process is as follows:
[0064] The principle of tool wear state discrimination is as follows: figure 2 Indicates: under the same processing parameters, set...
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