Indian Journal of Science and Technology

Open Access Open Access  Restricted Access Subscription Access

Experimental Investigation of the Influence of Burnishing Tool Passes on Surface Roughness and Hardness of Brass Specimens


Affiliations
1 Department of Mechanical Engineering, V. R. Siddhartha Engineering College, Kanuru,Vijayawada-520 007, India
2 Department of Mechanical Engineering, J. N. T. U. College of Engineering, Kukatpally, Hyderabad- 500 072, India
3 Department of Mechanical Engineering, Mahatma Gandhi Institute of Technology, Hyderabad-500 075, India
 

The process of burnishing is performed by applying a highly polished and hardened ball or roller with external force onto the surface of a cylindrical work piece. The burnishing process increases the surface hardness of the work piece, which in turn improves wear resistance, increases corrosion resistance, improves tensile strength, maintains dimensional stability and improves the fatigue strength by inducing residual compressive stresses in the surface of the work piece. In the present experimental work, both ball and roller burnishing tools are used. Experiments are conducted to study the performance of the ball and roller burnishing tools on lathe, along with the influence of number of burnishing tool passes on the surface roughness and surface hardness of brass specimens. The results revealed that improvements in the surface finish and increase in the surface hardness are obtained by the increase of the number of burnishing tool passes in both ball burnishing and roller burnishing on the brass specimens.

Keywords

Ball Burnishing, Roller Burnishing, Dynamometer, Brass
User

  • Hassan AM and Al- Bsharat AS (1997) Improvement in some properties of non- ferrous metals by the application of ball and roller burnishing processes J. Materials Processing Technol. 59 (3), 250- 256.

  • Loh NH Tam SC and Miyazawa S (1991) Investigations on the surface roughness produced by Ball Burnishing. Int. J. Machine Tools Manuf. 31, 75 – 81.

  • Murthy RL and Kotiveerachary B (1981) Burnishing of metallic surfaces – a review. Precision Eng.J. 3, 172– 179.

  • Shneider Yu G (1967) Characteristics of burnished components. Mech. Tooling. 38 (1), 19-22.

  • Siva Prasad T and Kotiveerachari B (1988) External burnishing of aluminum components. J. Inst. Engg. (India) 69, 55-58.

  • Thamizhmnaii S, Bin Omar B, Saparudin S and Hassan S (2008) Surface roughness investigation and hardness by burnishing on titanium alloy. J. Achiev. in Materials & Manuf. Engg. 28, 139–142.

  • Wang L Yu X (1999) Effect of various parameters on the surface roughness of an aluminum alloy burnished with a spherical surfaced polycrystalline diamond tool Int. J. Mach. Tools Manuf. 39, 459-469.


Abstract Views: 377

PDF Views: 117




  • Experimental Investigation of the Influence of Burnishing Tool Passes on Surface Roughness and Hardness of Brass Specimens

Abstract Views: 377  |  PDF Views: 117

Authors

J. N. Malleswara Rao
Department of Mechanical Engineering, V. R. Siddhartha Engineering College, Kanuru,Vijayawada-520 007, India
A. Chenna Kesava Reddy
Department of Mechanical Engineering, J. N. T. U. College of Engineering, Kukatpally, Hyderabad- 500 072, India
P. V. Rama Rao
Department of Mechanical Engineering, Mahatma Gandhi Institute of Technology, Hyderabad-500 075, India

Abstract


The process of burnishing is performed by applying a highly polished and hardened ball or roller with external force onto the surface of a cylindrical work piece. The burnishing process increases the surface hardness of the work piece, which in turn improves wear resistance, increases corrosion resistance, improves tensile strength, maintains dimensional stability and improves the fatigue strength by inducing residual compressive stresses in the surface of the work piece. In the present experimental work, both ball and roller burnishing tools are used. Experiments are conducted to study the performance of the ball and roller burnishing tools on lathe, along with the influence of number of burnishing tool passes on the surface roughness and surface hardness of brass specimens. The results revealed that improvements in the surface finish and increase in the surface hardness are obtained by the increase of the number of burnishing tool passes in both ball burnishing and roller burnishing on the brass specimens.

Keywords


Ball Burnishing, Roller Burnishing, Dynamometer, Brass

References





DOI: https://doi.org/10.17485/ijst%2F2011%2Fv4i9%2F30241