A study on grinding brittle material with pattern-dressed wheel

• Main Authors: Lin, Wen Hung, 林文鴻
• Other Authors: Tso, Pei Lum
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/44261241516456854441

碩士 === 國立清華大學 === 動力機械工程學系 === 103 === The high hardness property of brittle materials make it hard to machining with traditional grinding wheels ,so it usually uses diamond grinding wheels to improve the poor processing efficiency. Specific grinding energy is an indicator used to measure processing efficiency widely, According to the theory and specific grinding energy formula, the specific grinding energy in grinding process is changed as grinding wheel surface changed, reducing the surface area of the grinding wheel can effectively enhance the specific grinding energy; The existing studies show a high relation between the surface topography of grinding wheels and the grinding results. Conditioning grooves on grinding wheels not only enhance the specific grinding energy, but also achieve the effect of reducing the heat during the grinding processes. In order to reduce the amount of diamond grinding wheel used in the manufacturing process, to reach the goal of reducing costs, the purpose of this study is using conventional grinding wheels after the special conditioning in grinding processes, from soft materials to brittle materials, as the specific grinding energy an indicator, to study the different method of dressing improve the efficiency of grinding brittle materials. The results of this study show that, the traditional grinding wheel after dressing especially can improve the removal of brittle materials, at the cutting depth 20μm or less using the rhombic pattern, at 20μm or more, then using groove-like pattern can be better of the material removal rate.