Tool interference at workpiece centre in single-point diamond turning
Tool interference at workpiece centre in single-point diamond turning
复制标题
单点金刚石车削中工件中心的刀具干涉
DOI：
10.1016/j.ijmecsci.2018.10.057
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发表时间：
2019-02
影响因子：
7.3
通讯作者：
娄燕
中科院分区：
文献类型：
--
作者：
张国庆;戴雨琦;杜雪;伍晓宇;娄燕
在单点金刚石车削（SPDT）中，由于刀具高度低于或高于主轴轴线而导致的工件中心误差会导致工件中心出现圆柱或圆锥。所形成的圆锥体或圆柱体边界用于识别刀具高度，然后对其进行补偿，以获得所需的表面轮廓。与以往的研究不同，本研究基于金刚石刀具在锥面成形过程中会发生抬升，从而形成刃带高、半径大的刀具干涉区的事实，对中心误差引起刀具干涉的成因及其影响因素进行了理论和实验研究。研究了中心误差与干涉力的关系。通过一系列实验研究了刀具干涉的产生及其影响因素。推导了刀具干涉区半径的数学模型，建立了刀具干涉区半径与切削条件的关系。分析了理论计算结果与实验结果之间的误差来源。由于中心误差只能通过补偿来减小，而不能完全消除，特别是在分辨率较低的机床中，因此研究中心锥的产生及其对刀具干涉的影响，以及抑制刀具干涉具有重要意义。为建立基于力的中心误差在线识别方法，提高切削效率提供了参考。
In single-point diamond turning (SPDT), the workpiece centre error owing to the tool height below or above the spindle axis causes cylinder or cone appearances at the workpiece centre. The formed cone or cylinder boundary is used to identify the tool height and then compensate for it, in order to obtain the desired surface profile. As opposed to previous studies, based on the fact that the diamond tool is elevated during cone formation and therefore forms a tool interference zone with higher land and larger radius, this research conducts a theoretical and experimental study to investigate the origin of tool interference owing to centre error, and its influencing factors. In this study, the relation between centre error and interference force was investigated. A series of experiments were conducted to explore tool interference generation and its influencing factors. A mathematical model was derived to calculate the tool interference zone radius, whereby the relation between this radius and the cutting conditions was established. Moreover, the error sources between the theoretical and experimental results were analysed. As centre error can only be reduced by compensation and cannot be eliminated, particularly in machine tools with poor resolution, it is meaningful to conduct research on the centre cone generation and its influence on tool interference in SPDT, as well as suppressing the tool interference in SPDT. Furthermore, this research provides a reference for establishing an online force-based centre error identification method, thereby improving cutting efficiency.
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DOI：
10.1016/j.ijmecsci.2018.05.004
发表时间：
2018-07-01
影响因子：
7.3
作者：
Orra, Kashfull;Choudhury, Sounak K.
通讯作者：
Choudhury, Sounak K.
影响因子：
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作者：
Y. Namba;M. Katagiri;M. Nakatsuka
通讯作者：
Y. Namba;M. Katagiri;M. Nakatsuka
DOI：
10.1016/j.ijmachtools.2012.04.007
发表时间：
2012-11
影响因子：
14
作者：
S. Zhang;S. To;C. Cheung;H. Wang
通讯作者：
S. Zhang;S. To;C. Cheung;H. Wang
DOI：
10.1117/12.511341
发表时间：
2003-11
期刊：
CIRP Annals
影响因子：
--
作者：
Richard C. Juergens;R. Shepard;J. Schaefer
通讯作者：
Richard C. Juergens;R. Shepard;J. Schaefer
DOI：
10.1007/s001700200030
发表时间：
2002-02
期刊：
The International Journal of Advanced Manufacturing Technology
影响因子：
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作者：
C. Cheung;W. Lee
通讯作者：
C. Cheung;W. Lee