CNC machine tool monitoring by AE sensors: Difference between revisions

Revision as of 08:33, 12 May 2021

Revision as of 13:05, 12 May 2021

Line 10:

== Techniques of machine tool monitoring ==

Machine tool monitoring can be done with or without additional [[Sensor|sensors]]. Using additional sensors, monitoring can be done by measuring:

* the cutting force (with a multi-channel table [[dynamometer]] or rotating dynamometer)<ref>{{Cite journal|last=Jemielniak|first=K.|last2=Arrazola|first2=P.J.|date=January 2008-01-XX|title=Application of AE and cutting force signals in tool condition monitoring in micro-milling|url=https://linkinghub.elsevier.com/retrieve/pii/S1755581708000400|journal=CIRP Journal of Manufacturing Science and Technology|language=en|volume=1|issue=2|pages=97–102|doi=10.1016/j.cirpj.2008.09.007}}</ref>

* [[vibration]] amplitude using multi-channel [[Accelerometer|accelerometers]]<ref>{{Cite journal|last=Haber|first=R.E.|last2=Jiménez|first2=J. E.|last3=Peres|first3=C.Ronei|last4=Alique|first4=J. R.|date=2004|title=An investigation of tool-wear monitoring in a high-speed machining process|url=https://linkinghub.elsevier.com/retrieve/pii/S0924424704003553|journal=Sensors and Actuators A: Physical|language=en|volume=116|issue=3|pages=539–545|doi=10.1016/j.sna.2004.05.017}}</ref>

* audible sound from the machining process

* [[High frequency|high-frequency]] sound or [[acoustic emission]]<ref>{{Cite journal|last=Li|first=Xiaoli|date=January 2002-01-XX|title=A brief review: acoustic emission method for tool wear monitoring during turning|url=https://linkinghub.elsevier.com/retrieve/pii/S0890695501001080|journal=International Journal of Machine Tools and Manufacture|language=en|volume=42|issue=2|pages=157–165|doi=10.1016/S0890-6955(01)00108-0}}</ref>

Sensor-less machine tool monitoring is done by measuring internal drive signals such as:

* feed motor [[Electric current|current]]