| 磨料有序排布钎焊金刚石砂轮磨削硬质合金的性能研究 |
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| 作者姓名： | 李曙生 徐九华 肖冰 严明华 傅玉灿 徐鸿钧 |
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| 作者单位： | [1]南京航空航天大学机电学院,南京210016 [2]泰州职业技术学院机电工程系,泰州225300 |
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| 基金项目： | 航空基础科学基金
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江苏省自然科学基金
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中国航空科学基金 |
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| 摘 要： | 通过优化排布金刚石磨料研制出钎焊单层金刚石端面砂轮.以硬质合金为加工对象,研究了该砂轮的磨削性能.结果显示连续干磨时,金刚石磨粒的失效形式主要是磨耗磨损和断裂两类,没有出现传统的电镀和烧结工具磨粒大量脱落的现象.这表明钎料合金对磨粒的高强度把持和砂轮的高耐用度.此外,工件的磨削表面获得了良好的粗糙度,理论预测的粗糙度数值和试验数值基本一致.
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| 关 键 词： | 钎焊 金刚石砂轮 磨削 硬质合金 磨损 brazing diamond wheel grinding cemented carbide wear 磨料有序排布 钎焊 金刚石砂轮磨削 硬质合金 性能 研究 CEMENTED CARBIDE GRINDING PATTERN GRAIN DEFINED WHEELS DIAMOND theoretical surface roughness ground surface good addition strong retention |
| 修稿时间： | 2006/4/11 0:00:00 |
PERFORMANCE OF BRAZED DIAMOND CUP-TYPE WHEELS WITH DEFINED GRAIN PATTERN IN GRINDING CEMENTED CARBIDE |
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| Authors: | Li Shusheng Xu Jiuhu Xiao Bing Yan Minghu Fu Yucan Xu Hongjun |
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| Institution: | 1.Biotechnalosy Research Center, Kunming University of Science and Technology, Kunming 650224; 2 .Department of Forage Grass and Feed Production ,Southwest University of China, Chongqing 400716 |
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| Abstract: | A new cup-type grinding wheel of the brazed monolayer diamond is developed with a defined grain pattern on the wheel surface. Grinding performance of the brazed wheel in the surface grinding of cemented carbide is studied. Experimental results show that when continuous dry grinding is employed, grits of the brazed diamond grinding wheel fail mainly in attritious wear and fracture modes and no pull-out ones are found in conventional electroplated and sintered diamond wheels. It indicates the strong retention of brazing alloy to diamond grits and the longer service life of the wheel. In addition, the ground surface has good roughness. The theoretical surface roughness agrees well with experimental results. |
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| Keywords: | brazing diamond wheel grinding cemented carbide wear |
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