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Abstract
The article presents the results of comparative investigations concerning surface topography obtained as a result of machining the workpiece with ball end and lens-shape end mills. The analysis was conducted for various values of width of cutting ae and feed speed fz. The research results include the comparison of surface topography maps and parameters of linear and surface roughness. It was shown. as a result of the research. that the use of lens-shape end mill allows to obtain similar values of surface topography parameters to the obtained values in machining with ball end mill. while achieving more than twice the efficiency of machining. As a result. there was demonstrated the potential for the use of lens-shape end mills in finishing operations as a useful alternative to ball end mills.
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