| Summary: | 碩士 === 國立彰化師範大學 === 電機工程學系 === 98 === Abstract
High speed technology is the trend of tool machine development, including high speed machining(HSM) and high speed feed (HSF), which are both high speed processing. The so called high speed processing is to combine the technology of HSM, HSF and low radial/axial cutting depth to reach the precision of only few µm. High speed machining and feed are important technologies to improve productivity efficiency by high speed spindle and offering.
The thesis aims to research on effects of different cutting processes by high carbon S50C-type steel and middle carbon P5-type steel of disposable blade to compare different cutting and offering speed. The cutting characteristic under different cutting and offering speed is investigated to find out better cutting process condition. Different cutting forces, the wear of blade and the type of cutting are compared in the study. Besides, the efficiency and surface coarse roughness of the refinement piece under high speed cutting is examined. After experiment, it can be found that, by decreasing the force of the cutting blade, the surface brightness of the working piece can be improved, thus better cutting refinement can be obtained. Moreover, the cutting of middle carbon P5-type steel presents bad cutting strips, while the cutting of high carbon S50C-type steel presents better cutting conditions.
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