Milling of gamma titanium–aluminum alloys

The present research is focused on the machinability of the gamma-TiAl alloys, also called in literature as titanium aluminides, under the milling process. In comparison with the alpha–beta alloys, the alloys solidified in the gamma phase present improved ratio between strength and density even at higher temperatures; however, hard and new machining problems appear. Currently, there is a lack of machining parameters for this kind of materials, and therefore, its inclusion in aeronautical and automotive applications is being delayed. This work summarizes the results of a testing program which offers an outlook on the cutting conditions when machining even more difficult-to-cut titanium alloys than the more spread and known structural alpha–beta alloys.

[1]  Yusuf Altintas,et al.  Prediction of ball-end milling forces from orthogonal cutting data , 1996 .

[2]  D. Aspinwall,et al.  Workpiece surface integrity considerations when finish turning gamma titanium aluminide , 2001 .

[3]  Richard E. DeVor,et al.  Mechanistic Modeling of the Ball End Milling Process for Multi-Axis Machining of Free-Form Surfaces , 2001 .

[4]  A. Lamikiz,et al.  Hole Making in Gamma Tial , 2010 .

[5]  L. N. López de Lacalle,et al.  CALCULATION OF THE SPECIFIC CUTTING COEFFICIENTS AND GEOMETRICAL ASPECTS IN SCULPTURED SURFACE MACHINING , 2005 .

[6]  David K. Aspinwall,et al.  The Machining of ?-TiAI Intermetallic Alloys , 2005 .

[7]  Klaus Weinert,et al.  Mechanistic identification of specific force coefficients for a general end mill , 2004 .

[8]  Satoshi Sakamoto,et al.  Prediction of cutting forces and machining error in ball end milling of curved surfaces -II experimental verification , 2002 .

[9]  C. M. Zheng,et al.  Identification of shearing and ploughing cutting constants from average forces in ball-end milling , 2002 .

[10]  Miles Arnone,et al.  High Performance Machining , 1998 .

[11]  Konstantinos-Dionysios Bouzakis,et al.  Determination of the chip geometry, cutting force and roughness in free form surfaces finishing milling, with ball end tools , 2003 .

[12]  A. Lamikiz,et al.  Cutting force estimation in sculptured surface milling , 2004 .

[13]  Edward A. Loria,et al.  Quo vadis gamma titanium aluminide , 2001 .

[14]  R. Venkata Rao,et al.  Advanced Modeling and Optimization of Manufacturing Processes: International Research and Development , 2013 .

[15]  L. N. López de Lacalle,et al.  Advanced cutting conditions for the milling of aeronautical alloys , 2000 .

[16]  M. Smit,et al.  Titanium based conversion coatings on aluminium alloy 3003 , 1999 .

[17]  T. Noda.  Application of cast gamma TiAl for automobiles , 1998 .

[18]  Lihui Wang,et al.  Simplified and efficient calibration of a mechanistic cutting force model for ball-end milling , 2004 .

[19]  Ismail Lazoglu,et al.  Sculpture surface machining: a generalized model of ball-end milling force system , 2003 .

[20]  T. I. El-Wardany,et al.  Generic Simulation Approach for Multi-Axis Machining, Part 1: Modeling Methodology , 2002 .

[21]  Chia-Hsiang Menq,et al.  Integrated planning for precision machining of complex surfaces. Part 1: Cutting-path and feedrate optimization , 1997 .