| PDC刀具切削花岗岩过程的微裂纹扩展 |
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| 引用本文： | 魏 昕；王成勇；谭哲丽. PDC刀具切削花岗岩过程的微裂纹扩展[J]. 岩石力学与工程学报, 1996, 15(1): 71-071 |
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| 作者姓名： | 魏 昕；王成勇；谭哲丽 |
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| 作者单位： | 广东工学院 |
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| 基金项目： | 国家自然科学基金,青年基金 |
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| 摘 要： | 采用偏光显微镜观察ＰＤＣ（聚晶金刚石复合片）刀具切削花岗岩的微观过程，研究切削过程微裂纹产生和扩展的规律。分析了矿物特性如矿物成份、晶粒大小及初始裂纹等对微观裂纹扩展路径的影响。研究结果表明：在切削深度较小时，矿物特性对花岗岩微裂纹的产生与扩展过程起主导作用。
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| 关 键 词： | 聚晶金刚石刀具，花岗岩，切削过程，微裂纹 |
| 收稿时间： | 1994-09-04 |
| 修稿时间： | 1994-11-28 |
DEVELOPMENT OF MICROCRACKS IN GRANITE CUT BY PDC TOOL |
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| Wei Xin, Wang Chengyong ,Tan Zheli. DEVELOPMENT OF MICROCRACKS IN GRANITE CUT BY PDC TOOL[J]. Chinese Journal of Rock Mechanics and Engineering, 1996, 15(1): 71-071 |
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| Authors: | Wei Xin Wang Chengyong Tan Zheli |
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| Abstract: | The micro-feed cutting processes of granite by PDC (Polycrystalline Diamond Compact) tool are observed with polarization microscope. The generation and development of microcracks are studied. By analyzing the effect of mineral properties, grain size, initial microcracks, etc. , on the path of microcrack, it is shown that mineral properties and microstructure of granite dominant the patterns of generation and development of microcracks in the cutting processes of granite when the cut depth is small. |
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| Keywords: | polycrystalline diamond compact granite cutting process microcrack |
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