| 硬质合金刀具钎焊后性能变化的研究 |
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| 引用本文： | 赵丽杰,王贵成,王冬.硬质合金刀具钎焊后性能变化的研究[J].哈尔滨工业大学学报,2001,33(2):265-269. |
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| 作者姓名： | 赵丽杰 王贵成 王冬 |
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| 作者单位： | 1. 佳木斯大学 机械工程学院,
2. 江苏理工大学 |
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| 摘 要： | 对硬质合金刀具钎焊前后的硬度、裂纹形成及变化，焊缝质量和切削性能等进行了大量的试验研究。结果表明：硬质合金刀具钎焊后硬度下降范围在HRA1以内；采用延长钎焊后保温时间和增加补偿垫片均可以减少或避免刀具表面裂纹的产生；对18CrMnTi渗碳淬火齿轮（HRC55－58）单齿侧刃铣削中钎焊刀具的切削性能同机夹刀具相比无明显差异，它为硬质合金钎焊刀具在精密切削FMS和其他自动化加工中的广泛应用提供了实验和理论依据。
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| 关 键 词： | 钎焊 硬质合金 刀具 裂纹 切削性能 |
| 文章编号： | 0367-6234(2001)02-0265-05 |
| 修稿时间： | 2000年12月10 |
Changes in properties of carbide cutting tools after being brazed |
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| ZHAO Li-jie,WANG Gui-cheng,WANG Dong.Changes in properties of carbide cutting tools after being brazed[J].Journal of Harbin Institute of Technology,2001,33(2):265-269. |
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| Authors: | ZHAO Li-jie WANG Gui-cheng WANG Dong |
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| Abstract: | Presents the experimental tests run on hardness of carbide cutting tools before and after being brazed, initiation and propagation of cracks in them, quality of weld and cutting performance of these cutting tools, and the experimental test results which show that the reduction in hardness of carbide cutting tools after being brazed is within HRA1, the initiation of cracks in the surface of cutting tools can be reduced or eliminated by prolonging the holding time for the cutting tools after being brazed and adding shims, and the cutting performance of brazed cutting tools with single cutting edge made of l8CrMnTi is similar to that of fixed machining cutting tool. |
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| Keywords: | brazed carbide cutting tool hardness crack cutting performance |
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