Development of a three-component dynamometer to measure turning force

This work is focused on the design, construction and testing of a strain gauge dynamometer devised to measure the three components of the turning force. For this purpose, an elastic element sensitive to torsion and flexion was developed. The effect of the cutting parameters (cutting speed, feed rate and depth of cut) on the force components was investigated. Additionally, the performance of the dynamometer was compared with a commercial piezoelectric device. The results indicated that the three components of the turning force decrease slightly as cutting speed was elevated and increase linearly with feed rate and depth of cut. Furthermore, the analysis of variance indicated that the three components are not significantly affected by cutting speed; however, they are significantly affected by feed rate and depth of cut. The comparative tests indicated that the strain gauge dynamometer presented a satisfactory performance, providing closer values to the piezoelectric dynamometer at higher depth of cut values.

[1]  Suleyman Yaldiz,et al.  A dynamometer design for measurement the cutting forces on turning , 2006 .

[2]  Thomas Childs,et al.  Metal Machining: Theory and Applications , 2000 .

[3]  E. Ezugwu.  Key improvements in the machining of difficult-to-cut aerospace superalloys , 2005 .

[4]  K. N. Strafford,et al.  Indirect monitoring of machinability in carbon steels by measurement of cutting forces , 1997 .

[5]  M. Sortino,et al.  Development of a modular dynamometer for triaxial cutting force measurement in turning , 2011 .

[6]  Sedat Karabay.  Design criteria for electro-mechanical transducers and arrangement for measurement of strains due to metal cutting forces acting on dynamometers , 2007 .

[7]  Fritz Klocke,et al.  Development of a tool wear-monitoring system for hard turning , 2003 .

[8]  C. W. de Silva,et al.  Tool wear detection and fault diagnosis based on cutting force monitoring , 2007 .

[9]  D. E. Dimla.  The impact of cutting conditions on cutting forces and vibration signals in turning with plane face geometry inserts , 2004 .

[10]  Dong-Sik Kim,et al.  Development of a combined-type tool dynamometer with a piezo-film accelerometer for an ultra-precision lathe , 1997 .

[11]  Ichiro Inasaki,et al.  Tool Condition Monitoring (TCM) — The Status of Research and Industrial Application , 1995 .

[12]  Sounak Kumar Choudhury,et al.  Tool wear measurement in turning using force ratio , 2000 .

[13]  Somkiat Tangjitsitcharoen,et al.  In-process monitoring and detection of chip formation and chatter for CNC turning , 2009 .

[14]  P. K. Venuvinod,et al.  An optical fibre sensor based cutting force measuring device , 1995 .

[15]  G. Sur,et al.  Design and construction of a dynamometer to evaluate the influence of cutting tool rake angle on cutting forces , 2006 .

[16]  M. C. Shaw.  Metal Cutting Principles , 1960 .

[17]  Ichiro Inasaki,et al.  Application of acoustic emission sensor for monitoring machining processes , 1998 .

[18]  Suleyman Yaldiz,et al.  Design, development and testing of a turning dynamometer for cutting force measurement , 2006 .