Abstract
The densification behavior of sintered aluminium has been investigated by performing simulation studies using DEFORM 2D software. The results have been compared with the experimental values. The deformation characteristics of the sintered preforms have been studied and the relationship between the various stresses such as true stress, true strain, hoop stress, hoop strain, hydrostatic stress, hydrostatic strain, effective stress, effective strain and relative density in both the experimental and simulations has been discussed for uniaxial, plane stress and triaxial stress state conditions. A good agreement is found between the experimental and simulation results.
References
- Griffiths TJ, Davies R and Bassett MB. Compatibility equations for the powder forging process. Powder Metallurgy, 1977; 4: 214 – 220.
- Sun XK, Chen SJ, Xu JZ, Zhen LD and Kim KT. Analysis of cold compaction densification behaviour of metal powders. Materials Science and Engineering: A267, 1999; 43 – 49.
- Hansen N. Dispersion strengthened aluminium products manufactured by powder Blending. Powder Metallurgy, 1969; 12(23): 23 – 44.
- Kuhn HA and Downey CL. How flow and fracture affect design of preforms of powder forging, Powder Metallurgy, Powder Technology, 1974; 10(1): 59 – 66. Narayanasamy R and Ponalagusamy R. A Mathematical theory of plasticity for compressible powder metallurgy materials-Part II. Journal of Materials Processing Technology, 2000; 97: 110 – 113.
- Park JJ. Constitutive relations to predict plastic deformations in porous metal during Compaction International Journal of Mechanical Sciences, 1995; 37: 709 – 7
- Selvakumar N and Narayanasamy R. Phenomenon of strain hardening behaviour of sintered aluminium preforms during cold axial forming. Journal of Materials Processing Technology, 2003; 142: 347-354.
- Narayanasamy R, Ramesh T and Pandey KS. Some aspects on workability of aluminium–iron powder metallurgy composite during cold upsetting, Materials Science and Engineering: A391, 2005; 418 – 426.
- Zhang XQ, Peng YH and Ruan XY. Simulation and fracture prediction for sintered materials in upsetting by FEM. Journal of Materials Processing Technology, 2000; 105: 253 – 257.
- Huang CC and Cheng JH, An investigation into the forming limits of sintered porous materials under different operational conditions. Journal of Materials Processing Technology, 2004; 148: 382 – 393.
- Chandrasekhar P and Singh S. Investigation of dynamic effects during cold upset-forging of sintered aluminium truncated conical preforms. Journal of Materials Processing Technology, 2011; 1285 – 1295.
- Narayanasamy R, Ramesh T, Pandey KS and Pandey SK. Effect of particle size on new constitutive relationship of aluminium–iron powder metallurgy composite during cold upsetting, Material and Design, 2008; 29: 1011 – 1026.
Abstract
The densification behavior of sintered aluminium has been investigated by performing simulation studies using DEFORM 2D software. The results have been compared with the experimental values. The deformation characteristics of the sintered preforms have been studied and the relationship between the various stresses such as true stress, true strain, hoop stress, hoop strain, hydrostatic stress, hydrostatic strain, effective stress, effective strain and relative density in both the experimental and simulations has been discussed for uniaxial, plane stress and triaxial stress state conditions. A good agreement is found between the experimental and simulation results.
References
- Griffiths TJ, Davies R and Bassett MB. Compatibility equations for the powder forging process. Powder Metallurgy, 1977; 4: 214 – 220.
- Sun XK, Chen SJ, Xu JZ, Zhen LD and Kim KT. Analysis of cold compaction densification behaviour of metal powders. Materials Science and Engineering: A267, 1999; 43 – 49.
- Hansen N. Dispersion strengthened aluminium products manufactured by powder Blending. Powder Metallurgy, 1969; 12(23): 23 – 44.
- Kuhn HA and Downey CL. How flow and fracture affect design of preforms of powder forging, Powder Metallurgy, Powder Technology, 1974; 10(1): 59 – 66. Narayanasamy R and Ponalagusamy R. A Mathematical theory of plasticity for compressible powder metallurgy materials-Part II. Journal of Materials Processing Technology, 2000; 97: 110 – 113.
- Park JJ. Constitutive relations to predict plastic deformations in porous metal during Compaction International Journal of Mechanical Sciences, 1995; 37: 709 – 7
- Selvakumar N and Narayanasamy R. Phenomenon of strain hardening behaviour of sintered aluminium preforms during cold axial forming. Journal of Materials Processing Technology, 2003; 142: 347-354.
- Narayanasamy R, Ramesh T and Pandey KS. Some aspects on workability of aluminium–iron powder metallurgy composite during cold upsetting, Materials Science and Engineering: A391, 2005; 418 – 426.
- Zhang XQ, Peng YH and Ruan XY. Simulation and fracture prediction for sintered materials in upsetting by FEM. Journal of Materials Processing Technology, 2000; 105: 253 – 257.
- Huang CC and Cheng JH, An investigation into the forming limits of sintered porous materials under different operational conditions. Journal of Materials Processing Technology, 2004; 148: 382 – 393.
- Chandrasekhar P and Singh S. Investigation of dynamic effects during cold upset-forging of sintered aluminium truncated conical preforms. Journal of Materials Processing Technology, 2011; 1285 – 1295.
- Narayanasamy R, Ramesh T, Pandey KS and Pandey SK. Effect of particle size on new constitutive relationship of aluminium–iron powder metallurgy composite during cold upsetting, Material and Design, 2008; 29: 1011 – 1026.
Details
| Primary Language | Turkish |
|---|---|
| Journal Section | Articles |
| Authors | |
| Publication Date | March 27, 2016 |
| Published in Issue | Year 2013 Volume: 2 Issue: 2 |