Machining evaluation of a hybrid MQL-CO2 grinding technology

Although there are already successful industrial experiences in other machining industries with the elimination of coolants, this is not so in the grinding industry due to the large amounts of generated heat that must be evacuated from the contact zone. In this work, a new approach to the elimination of fluids in grinding is presented. The technology is based on the use of a hybrid Minimum Quantity of Lubricant (MQL)-low temperature CO2 system that reduces lubrication consumption. Abrasive grits are protected by the layer of frozen oil, resulting in a significant improvement in grinding wheel life and surface quality of the machined component. Although the cooling action is reduced with respect to the conventional coolant, no thermal damage was observed on the workpiece.

[1]  W. B. Rowe,et al.  Temperature measurement in high efficiency deep grinding , 2005 .

[2]  Tina Dettmer,et al.  Coolants made of native ester - technical, ecological and cost assessment from a life cycle perspective , 2007 .

[3]  A. B. Chattopadhyay,et al.  Determination and control of grinding zone temperature under cryogenic cooling , 1996 .

[4]  Ichiro Inasaki,et al.  Tribology of Abrasive Machining Processes , 2004 .

[5]  T. Tawakoli,et al.  Influence of ultrasonic vibrations on dry grinding of soft steel , 2008 .

[6]  Ekkard Brinksmeier,et al.  Minimalmengenkühlschmierung und Trockenbearbeitung beim Schleifen , 1997 .

[7]  Peter Krajnik,et al.  Transitioning to sustainable production – Part I: application on machining technologies , 2010 .

[8]  Domnita Fratila,et al.  Evaluation of near-dry machining effects on gear milling process efficiency , 2009 .

[9]  Peter Krajnik,et al.  Transitioning to sustainable production – part II: evaluation of sustainable machining technologies , 2010 .

[10]  W. Rowe,et al.  Handbook of Machining with Grinding Wheels , 2006 .

[11]  S. Malkin,et al.  Thermal Analysis of Grinding , 2007 .

[12]  Claudio Boer,et al.  The incoming global technological and industrial revolution towards competitive sustainable manufacturing , 2008 .

[13]  M. Sadeghi,et al.  An experimental investigation of the effects of workpiece and grinding parameters on minimum quantity lubrication—MQL grinding , 2009 .

[14]  M. Rabiey,et al.  Dry grinding by special conditioning , 2007 .

[15]  Takashi Ueda,et al.  On The Measurement of Temperature in Material Removal Processes , 2007 .

[16]  Philip Koshy,et al.  High-power diode laser assisted hard turning of AISI D2 tool steel , 2006 .

[17]  N. Fredj,et al.  Ground surface improvement of the austenitic stainless steel AISI 304 using cryogenic cooling , 2006 .

[18]  Li Shu,et al.  The need for global coordination in sustainable development , 2009 .

[19]  N. H. Woolley,et al.  The effects of cutting fluid application methods on the grinding process , 2000 .

[20]  Eduardo Carlos Bianchi,et al.  Analysis of surface integrity for minimum quantity lubricant—MQL in grinding , 2007 .

[21]  Liangchi Zhang,et al.  Grinding-hardening with liquid nitrogen: Mechanisms and technology , 2007 .

[22]  Jan C. Aurich,et al.  High-performance dry grinding using a grinding wheel with a defined grain pattern , 2008 .