| 钎焊金刚石砂轮高速磨削氧化铝陶瓷的磨损特征 |
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| 引用本文： | 陈建毅,徐西鹏.钎焊金刚石砂轮高速磨削氧化铝陶瓷的磨损特征[J].组合机床与自动化加工技术,2011(12). |
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| 作者姓名： | 陈建毅 徐西鹏 |
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| 作者单位： | 1. 厦门城市职业学院工程技术学部,福建厦门,361008
2. 华侨大学脆性材料加工技术教育部工程研究中心,福建厦门,361021 |
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| 基金项目： | 福建省教育厅A类科技项目，厦门城市职业学院院级课题 |
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| 摘 要： | 利用真空炉中钎焊工艺制作了钎焊金刚石砂轮,并对氧化铝陶瓷进行高速磨削的磨损研究.实验中,监测了磨削过程中每道磨削的磨削力特征,观察和统计了不同磨削阶段的砂轮表面磨粒磨损状态及变化情况,同时测量了磨粒的出刃高度.结果表明:在高的砂轮线速度和高的材料磨除率下,容易造成大量的磨粒断裂和完全破碎.仅有1.23％的金刚石磨粒是经历“完整-磨平—微破碎—半破碎—断裂(全破)”的失效过程,即磨粒理想的失效路径.通过对钎焊工艺、磨粒承受的载荷以及砂轮表面磨粒浓度和排布方式等因素的分析,阐明了文中钎焊金刚石砂轮中磨粒失效的原因.
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| 关 键 词： | 钎焊金刚石砂轮 氧化铝陶瓷 高速磨削 磨损 磨削力 |
Wear Characteristics of a Brazed Diamond Wheel in High-speed Grinding of Alumina |
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| CHEN Jian-yi,XU Xi-peng.Wear Characteristics of a Brazed Diamond Wheel in High-speed Grinding of Alumina[J].Modular Machine Tool & Automatic Manufacturing Technique,2011(12). |
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| Authors: | CHEN Jian-yi XU Xi-peng |
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| Affiliation: | CHEN Jian-yi 1,XU Xi-peng 2(1.Department of Engineering and Technology,Xiamen City University,Xiamen Fujian 361008,China,2.MOE Engineering Research Center for Brittle Materials Machining,Huaqiao University,Xiamen Fujian 361021,China) |
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| Abstract: | A monolayer diamond grinding wheel was fabricated by brazing in vacuum.The wear characteristics of the brazed diamond w heel w ere studied by monitoring the changes of grinding force each passes,observing and recording the w orn states of grains,and measuring the height protrusion of grains. Experiments show ed that most grains broke off or fractured completely in high-speed grinding of alumina w ith a high material removal rate.Only 1.23% of w earing route of diamond grains w as the route of w hole crystal... |
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| Keywords: | brazed diamond wheel alumina high-speed grinding wear grinding force |
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