An experimental investigation of temperatures and energy partition in grinding of cemented carbide with a brazed diamond wheel

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• 作者：You Ji Zhan (12)
  Xi Peng Xu (1) zhanyouji@163.com
• 关键词：Temperature – Energy partition – Vacuum brazed diamond wheel – Cemented carbide
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2012
• 出版时间：July 2012
• 年：2012
• 卷：61
• 期：1-4
• 页码：117-125
• 全文大小：426.0 KB
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• 作者单位：1. MOE Engineer Research Center for Brittle Materials Machining, Huaqiao University, Xiamen, 361021 China2. Department of Electromechanical and Automation Engineering, Fujian University of Technology, Fuzhou, 350108 China
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Production and Logistics
  Mechanical Engineering
  Computer-Aided Engineering and Design
  
• 出版者：Springer London
• ISSN：1433-3015

文摘

An experimental investigation is reported of the temperatures and energy partition in the grinding of cemented carbide with a vacuum brazed diamond wheel. During the experiments, the temperature distributions along the workpiece surface were measured using a sandwiched foil thermocouples and the energy partition to the workpiece estimated using a temperature matching method. The effects of the various grinding conditions, including wheel velocity, feed rate, and depth of cut, on the temperatures and the energy partition were investigated. The measured temperature responses were found to be in good relation with the analytical results of a moving heat source with a triangular distribution at the grinding zone. It was found that the grinding temperatures measured under different grinding conditions varied from 10°C to 100°C. The energy partition to the workpiece in dry grinding was found to be from 35% to 70%. Based on the energy partition values obtained from the experiments, the diamond tip temperature was calculated and found to be over the temperature necessary for the graphitization of diamond if the circular grain contact of radius is smaller than a critical value.