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Title: An Investigation of the Effect of the process parameters on the Material Properties of burnished components
Researcher: Krishna, R Murali
Guide(s): Prasad, K Eshwara
Keywords: burnished
Upload Date: 3-Jun-2014
University: Jawaharlal Nehru Technological University, Hyderabad
Completed Date: 2013
Abstract: Roller burnishing is a surface finishing process, in which a hard and highly polished roller is pressed against a rotating component. This results in the plastic flow of material from the peaks of surface irregularities into the valleys, there by reducing the surface roughness. This cold working of the surface improves micro-hardness, induces compressive stresses and refines the microstructure. This improvement has a positive impact on the surface characteristics like corrosion resistance, wear resistance, fatigue life etc. The main theme of this research work is to establish concrete experimental and analytical evidence, which can illustrate the versatility of roller burnishing process, in enhancing the surface properties. The surface characteristics which were analyzed in this work are surface finish, micro-hardness, induced compressive stresses, micro-structure, corrosion resistance and wear resistance. Extensive experimental work was done in order to determine the effect of roller burnishing on these characteristics for both ferrous (mild steel) and non ferrous (aluminium, brass, copper) materials. Other material properties analyzed were electrical conductivity (of Copper and Aluminium) and bearing ratio (of Brass). In the first phase of the experimental work, the parameters of the roller burnishing process were optimized using design of experiments (DOE) approach. Tool material, roller diameter and number of tool passes were optimized for improved surface finish
Pagination: 283 p.
Appears in Departments:Department of Mechanical Engineering

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01_title.pdfAttached File103.11 kBAdobe PDFView/Open
02_declaration.pdf42.59 kBAdobe PDFView/Open
03_certificate.pdf70.05 kBAdobe PDFView/Open
04_acknowledgement.pdf83.62 kBAdobe PDFView/Open
05_abstract.pdf78.94 kBAdobe PDFView/Open
06_contents.pdf80.15 kBAdobe PDFView/Open
07_list of figures & tables.pdf195.19 kBAdobe PDFView/Open
08_list of acronyms,symobles.pdf79.85 kBAdobe PDFView/Open
09_chapter 1.pdf744.62 kBAdobe PDFView/Open
10_chapter 2.pdf908.6 kBAdobe PDFView/Open
11_chapter 3.pdf1.49 MBAdobe PDFView/Open
12_chapter 4.pdf1.85 MBAdobe PDFView/Open
13_chapter 5.pdf104.93 kBAdobe PDFView/Open
14_references.pdf181.25 kBAdobe PDFView/Open
15_appendix.pdf938.92 kBAdobe PDFView/Open
16_list of publication.pdf82.82 kBAdobe PDFView/Open
17_synopses.pdf870.08 kBAdobe PDFView/Open
18_publications.pdf5.01 MBAdobe PDFView/Open

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