Mechanical Properties Analysis of an Al-Mg Alloy Connecting Rod with Submicrometric Structure

Over these last few years, there has been a growing interest in developing mechanical components from submicrometric materials due to the significant improvement that these materials present compared to their original state. This present research work deals with the study of the mechanical properties of a connecting rod isothermally forged from different starting materials. These materials are as follows: annealed aluminum alloy (AA) 5754, the same alloy previously deformed through equal channel angular pressing (ECAP) and a third case where the previously ECAP-processed material is subjected to a recovery heat treatment. A comparison is made between finite volume (FV) simulations and experimental tests with respect to hardness, plastic strain and forging force. Furthermore, the improvement in the mechanical properties of the connecting rod forged from predeformed material is evaluated in comparison to the connecting rod forged with annealed material. The microstructure of both cases is also compared at the end of the manufacturing process.

[1]  T. Mehner,et al.  Effect of Strain Localization on Pitting Corrosion of an AlMgSi0.5 Alloy , 2015 .

[2]  Rodrigo Luri,et al.  Manufacturing of nanostructured rings from previously ECAE-processed AA5083 alloy by isothermal forging , 2013 .

[3]  Dong-Yol Yang,et al.  Novel forging technology of a magnesium alloy impeller with twisted blades of micro-thickness , 2008 .

[4]  R. Lewis.  Friction in a hydraulic motor piston/cam roller contact lined with PTFE impregnated cloth , 2009 .

[5]  Taylan Altan,et al.  Cold And Hot Forging: Fundamentals And Applications , 2004 .

[6]  Christian Krempaszky,et al.  3-D FEM-simulation of hot forming processes for the production of a connecting rod , 2006 .

[7]  J. P. Fuertes,et al.  Design and mechanical property analysis of AA1050 turbine blades manufactured by equal channel angular extrusion and isothermal forging , 2013 .

[8]  Laurent Duchene,et al.  Modelling compression tests on aluminium produced by equal channel angular extrusion , 2009 .

[9]  F. J. Humphreys,et al.  Recrystallization and Related Annealing Phenomena , 1995 .

[10]  I. Puertas,et al.  Comparison between FEM and Experimental Results in the Upsetting of Nano-Structured Materials , 2012 .

[11]  W. Kim,et al.  Plastic forming of the equal-channel angular pressing processed 6061 aluminum alloy , 2008 .

[12]  Victor Vazquez,et al.  Die design for flashless forging of complex parts , 2000 .

[13]  H. C. Lee,et al.  Forgeability of ultra-fine grained aluminum alloy for bolt forming , 2010 .

[14]  Ali Fatemi,et al.  Connecting Rod Optimization for Weight and Cost Reduction , 2005 .

[15]  Janine K. Kardokus,et al.  Scale up and application of equal-channel angular extrusion for the electronics and aerospace industries , 2008 .

[16]  J. P. Fuertes,et al.  Design, optimization, and mechanical property analysis of a submicrometric aluminium alloy connecting rod , 2015 .

[17]  J. P. Fuertes,et al.  Mechanical Properties Analysis of an Al-Mg Alloy Connecting Rod with Submicrometric Structure☆ , 2015 .

[18]  T. Langdon,et al.  Grain refinement and superplastic flow in an aluminum alloy processed by high-pressure torsion , 2005 .

[19]  R. Valiev,et al.  Bulk nanostructured materials from severe plastic deformation , 2000 .

[20]  Ahmed S. M. Agena.  A study of flow characteristics of nanostructured Al-6082 alloy produced by ECAP under upsetting test , 2009 .

[21]  V. Segal.  Equal channel angular extrusion: from macromechanics to structure formation , 1999 .

[22]  Hyungyil Lee,et al.  Buckling sensitivity of a connecting rod to the shank sectional area reduction , 2010 .

[23]  O. P. Singh,et al.  Spalling investigation of connecting rod , 2012 .

[24]  C. L. Pérez,et al.  Design and mechanical property analysis of ultrafine grained gears from AA5083 previously processed by equal channel angular pressing and isothermal forging , 2014 .

[25]  T. Langdon,et al.  Performance and applications of nanostructured materials produced by severe plastic deformation , 2004 .

[26]  R. Valiev,et al.  Principles of equal-channel angular pressing as a processing tool for grain refinement , 2006 .

[27]  C. L. Pérez.  On the correct selection of the channel die in ECAP processes , 2004 .