Study of 3D grinding temperature field based on finite difference method: considering machining parameters and energy partition
Study of 3D grinding temperature field based on finite difference method: considering machining parameters and energy partition
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基于有限差分法的3D磨削温度场研究：考虑加工参数和能量分配
DOI：
10.1007/s00170-015-7757-z
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发表时间：
2015-09
影响因子：
3.4
通讯作者：
Wang, Wanshan
中科院分区：
文献类型：
--
作者：
Yu, Tianbiao;Sun, Xue;Shi, Ying;Wang, Wanshan
磨削温度是影响磨削质量的重要参数。较高的磨削温度会对工件造成热损伤。但在实际的磨削加工中，很难真实的实时测量磨削温度。本文提出了计算磨削温度的有限差分法。在计算磨削温度时，有一个重要的物理量是不可回避的，它就是能量分配，它是磨削能量在磨削区作为热量传递到工件上的部分。目前，关于能量分布的计算模型很多，但没有一个是非常精确的，而且大多数模型都是针对氧化铝砂轮磨削的。在测量磨削力和磨削温度的基础上，采用有限差分法反算工件表面热流，比较热模型与实验结果的差异，从而得到能量分配。结果表明，采用熔融沉积成型（FDM）技术可以提供整个温度场的三维图形图像。进给量对磨削温度和能量分配的影响相对于磨削速度和切削深度的影响更为显著。进给量的提高可以有效降低磨削温度，但能量分配有明显上升。经过反复研究，得到陶瓷结合剂立方氮化硼（CBN）砂轮磨削钛合金材料TC4时的能量分配近似值，在干磨条件下约为5%。
Grinding temperature is an important parameter in affecting the quality of grinding. The higher grinding temperature would cause thermal damage to workpiece. But in the actual grinding processing, it is difficult to measure the grinding temperature in real time. This paper presents the finite difference method to calculate the grinding temperature. When calculating the grinding temperature, an important physical quantity cannot be avoided; it is the energy partition and it is the fraction of the grinding energy transported as heat to the workpiece at the grinding zone. At present, there are a lot of calculation models for the energy distribution, but no one is very exact, and most models are exclusive for alumina grinding wheel grinding. Based on measuring the grinding force and temperature, the heat flux toward the workpiece can be back-calculated by finite difference method that compared the difference between the thermal model and experimental results; thus, the energy partition can be obtained. The results show that it provides a 3D graphic image of the whole temperature field by using the fused deposition modeling (FDM). And the influences of feed rate on grinding temperature and of energy partition are significant compared with the grinding speed and depth of cut. The improvement of feed rate can effectively reduce the grinding temperature, but energy partition has a significant rise. After repeated research, an approximate value of energy partition was obtained by using vitrified bond cubic boron nitride (CBN) wheel grinding titanium alloy material TC4, and it was about 5 % under dry grinding.
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DOI：
10.1007/s00170-008-1721-0
发表时间：
2009-07
期刊：
The International Journal of Advanced Manufacturing Technology
影响因子：
--
作者：
Zhou Li-qun;Li Yu-ping;Chen Zhi-gang
通讯作者：
Zhou Li-qun;Li Yu-ping;Chen Zhi-gang
DOI：
10.1007/s00170-011-3678-7
发表时间：
2011-10
期刊：
The International Journal of Advanced Manufacturing Technology
影响因子：
--
作者：
M. Morgan;L. Barczak;A. Batako
通讯作者：
M. Morgan;L. Barczak;A. Batako
DOI：
10.1115/1.3187835
发表时间：
1988-02
期刊：
Journal of Engineering for Industry
影响因子：
--
作者：
S. Ramanath;M. C. Shaw
通讯作者：
S. Ramanath;M. C. Shaw
影响因子：
4.1
作者：
Malkin, S.;Guo, C.
通讯作者：
Guo, C.
影响因子：
--
作者：
R. Gu;M. Shillor;G. Barber;T. Jen
通讯作者：
R. Gu;M. Shillor;G. Barber;T. Jen