In the thesis the possibility of introducing roller burnishing process to production of cold forming tools has been researched. To perform the analysis a ball burnishing tool/device was developed. Since implementing a new manufacturing process, the optimal process parameters were determined by using design of experiments methods. Burnishing time and resulting roughness needed to be minimized. Diameter of the burnishing ball, burnishing force, feed rate and roughness of the pre-treated surface were found to be the main influencing parameters. A surface roughness comparable to that of the grinded surface was achieved. Effects of burnishing process on the surface structure of material were discovered. Current standard technological process of tool manufacturing was compared with an updated one, where ball burnishing was implemented. A comparative test of polishing a grinded and burnished surface was made. We discovered that faster and lower polishing roughness were achieved with burnished surface. Based on this, an economic analysis between the technological processes was made. Using ball burnishing as a substitute for grinding process the cost of product manufacturing can be reduced.
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