فصلنامه
نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی مکانیک دانشگاه صنعتی اراک'
2 گروه مهندسی مکانیک دانشگاه صنعتی اراک
3 استادیا گروه مهندسی مکانیک دانشگاه صنعتی اراک
کلیدواژهها
عنوان مقاله English
نویسندگان English
This experimental study investigated the effect of machining parameters on the surface roughness of bone during the grinding process. Bone grinding is commonly used in neurosurgery, spinal operations, and heel spur removal. Despite using CNC machines and robotic systems in this field, selecting optimal process parameters to achieve desirable surface quality remains a significant challenge. In this research, bovine femur bone samples were subjected to experimental trials. Four parameters were examined, including spindle speed, feed rate, depth of cut, and tool diameter. The Sobol sensitivity analysis method was implemented using Python programming to assess surface roughness's sensitivity to these parameters. Subsequently, response surface methodology (RSM) in Minitab software was employed for results analysis and process optimization. The findings revealed that tool diameter, depth of cut, and osteon orientation had the most substantial influence on surface roughness. The optimum roughness value of 1.47 µm was obtained under specific conditions: spindle speed of 3000 rpm, feed rate of 60 mm/min, depth of cut of 0.1 mm, tool diameter of 8 mm, and across osteon orientation. The sensitivity analysis confirmed the dominant role of tool diameter in both longitudinal and across osteon orientations.
کلیدواژهها English
