Investigation on Sintered Preform with Different Geometrical Shape Factor

The proposed research work has been taken up to understand deformation characteristics of compacted and sintered cylindrical preform considering the effect of strain rates by introducing different lubricating conditions at the ends of the preform.The radius of curvature of the bulged preform was measured during the experiments and found to be confirmed with the calculated one. It is assumed that the curvature of the bulge followed the form of a circular arc and accordingly calculated. The experiments were conducted for three aspects ratios. The frictional forces developed between platens/forming tools are impartment considerations in sintered-preform working process and in addition to this, the variation of strain rates have also been studied. Between various bulge parameters like strain, geometrical shape and stress ratios, the mathematical relationships have been developed and found in good correlation with experimental data.It would be helpful for those who are working in the field of mathematical modeling of sintered metal powder products.The results so obtained are discussed critically and will be presented graphically.