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Application of Self-inhaling Internal Cooling Wheel in Vertical Surface grinding

Chinese Journal of Mechanical Engineering 2014年第1期27卷 86-91页

作者： LI Xun School of Mechanical Engineering and Automation Beihang University

There is less research on vertical sculptured grinding technology. Especially in high vertical surface grinding process with the cup abrasive wheel, the thermal damage is prone to happen and undermine the grinding surface integrity. This problem limits to improve the grinding efficiency and the grinding ratio greatly. Through the analysis of vertical surface grinding process and features in depth, this paper revealed the inherent mechanism of higher grinding temperature in the process of vertical sculptured grinding using the cup wheel. Based on the previous research achievements, the grinding experiments on TC4 （Ti-6A1-4V） and GH4169 are carried out utilizing the self-inhaling internal cooling wheel. The experimental results show that the self-inhaling internal cooling wheel can efficiently reduce the grinding surface temperature. Moreover, the inherent mechanism of reducing the grinding temperature using the internal cooling method is revealed. Meanwhile, under the same grinding conditions, the grinding ratio during the experiments on GH4169 using self-inhaling internal cooling method is about 3 times as high as using conventional external cooling method. And the grinding forces can be reduced by about 20%. This research revealed the inherent mechanism of higher grinding temperature in the process of vertical sculptured grinding using the cup wheel, which provides theoretical basis for the design and application of self-inhaling internal cooling wheel. At the same time, an efficient and non-invasive surface grinding method of TC4 and GH4169 is presented.

关键词： vertical grinding intemal cooling grinding temperature grinding ratio

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Derivation of grinding Force of Online Roll Grinder

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Journal of Iron and Steel Research International 2005年第5期12卷 18-20页

作者： HUANG Zhen-yi CHEN Guang Nanjing University of Science and Technology Nanjing 210094 China Anhui University of Technology Ma＇anshan 243002 China

The force of grinding particle was disintegrated to study the physical and mathematical models. The grinding wheel can be characterized by grinding ratio, C, a steady constant. The moment and C of grinding wheel can b... 详细信息

关键词： grinding particle grinding force grinding ratio

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grinding Characteristics Of Directionally Aligned SiC Whisker Wheel - Comparison With A12O3 Fiber Wheel

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Journal of Donghua University(English Edition) 2003年第4期20卷 70-75页

作者：魏源迁山口胜美菊泽贤二洞口严中根正喜 School of Engineering Nagoya University Furo-cho Chikusa-ku Nagoya 464 - 8603 Japan Xebec Technology Company Ltd. 3-2-2 Kudan-minami Chiyoda-ku Tokyo102 Japan Toyota College of Technology Eisei-cho 2-1 Toyota-shi Aichi-ken 4 71 Japan Sumitomo Metal Industries Ltd. 4-5-33 Kitahama Osaka 541 -0041 Japan unique SiC whisker wheel was invented in which the whiskers were aligned normally to the grinding wheel surface. In this paper grindabilities of the SiC whisker wheel are investigated and compared with those of other wheels of SiC grains Al2O3 grains as well as Al2O3 long and short fibres which were also aligned normally to the grinding wheel surface respectively. The main research contents concern grinding characteristics of a directionally aligned SiC whisker wheel such as material-removal volume wheel-wear rates integrity of the ground surfaces grinding ratios and grinding efficiency. Furthermore grinding wheels of whiskers and fibres have a common disadvantage: they tend to load easily. The authors have proposed a simple method of loading-free grinding to overcome this propensity and investigate some related grinding characteristics under loading-free grinding conditions.

A unique SiC whisker wheel was invented,in which the whiskers were aligned normally to the grinding wheel *** this paper,grindabilities of the SiC whisker wheel are investigated and compared with those of other wheels of SiC grains,Al2O3 grains,as well as Al2O3 long and short fibres which were also aligned normally to the grinding wheel surface,*** main research contents concern grinding characteristics of a directionally aligned SiC whisker wheel such as material-removal volume,wheel-wear rates,integrity of the ground surfaces,grinding ratios and grinding ***,grinding wheels of whiskers and fibres have a common disadvantage:they tend to load *** authors have proposed a simple method of loading-free grinding to overcome this propensity and investigate some related grinding characteristics under loading-free grinding conditions.

关键词： grinding grinding wheel SiC whisker Al2O3 fiber Directional alignment Loose grain Loading-free grinding ratio Surface roughness

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