Int. J. of Nanomanufacturing   »   2009 Vol.3, No.1/2

 

 

Title: On the design of a monitoring system for desktop micro-milling machines

 

Author: P. Stavropoulos, A. Stournaras, G. Chryssolouris

 

Addresses:
Laboratory for Manufacturing Systems and Automation, Department of Mechanical Engineering and Aeronautics, University of Patras, Patras 26110, Greece.
Laboratory for Manufacturing Systems and Automation, Department of Mechanical Engineering and Aeronautics, University of Patras, Patras 26110, Greece.
Laboratory for Manufacturing Systems and Automation, Department of Mechanical Engineering and Aeronautics, University of Patras, Patras 26110, Greece

 

Abstract: A critical issue in micro-milling is the unpredictability of tool life and the premature tool failure. Micro-end-milling is emerging as an important fabrication process. Its benefits include the ability to fabricate micro and meso-scale parts out of a greater range of materials and with more varied geometry than it is possible with lithography and etching. A variety of sensors can be used for capturing the necessary information on micro-machining process. These sensors may vary from encoders, load cells, accelerometers to acoustic emission (AE) sensors. Each sensor type has a main field of application, which depends both on the desired level of precision and the control parameter that must be measured. This paper presents the design philosophy, restrictions and a consideration, of a combinational method for developing a process monitoring system that is capable of monitoring simultaneously the spindle's and tool's condition during micro-milling operations. The design of the monitoring system is based on vibration and AEs caused by the micro-milling process.

 

Keywords: desktop micromilling; condition monitoring; vibration emissions; acoustic emission; AE; end milling; micromachining; tool life; tool failure; process monitoring.

 

DOI: 10.1504/IJNM.2009.027049

 

Int. J. of Nanomanufacturing, 2009 Vol.3, No.1/2, pp.29 - 39

 

Available online: 13 Jul 2009

 

 

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