基于ANSYS的纳米复相陶瓷木工刀具虚拟优化设计

Virtual Optimal Design of Nano-meter Ceramics Wood Cutting Tool Based on ANSYS

提出将纳米复相陶瓷刀具应用到木质材料加工中。首先证明了利用ANSYS的Solid95单元所构建的三维模型对木材切削过程进行有限元分析的可行性;然后通过ANSYS程序计算不同纳米复相陶瓷刀具前角所对应的最大有效应力,并推断最优前角的角度值;最后通过实验进行比较,证明优化结果与实验结果基本一致。利用该方法可对木材切削过程进行分析及对刀具进行优化设计。另外,还通过实验证明了纳米复相陶瓷刀具比普通硬质合金刀具耐用度高,适合进行木质材料加工。

In this paper, applying nano -ceramics to wood processing is presented for the first time. Above all, it proves that the finite element analysis for wood cutting process using the three - dimensional model created by solid95 unit in ANSYS is feasible. And then, maximal effective stress corresponding to different front angle of nano - ceramics tool is computed by program and by which optima front angle can be deduced. Finally, proved by the tests that the test result is basically in agreement with the theoretical result and the process analysis on wood cutting and optimum design of tools can be realized by this method. In addition, the tests also show that the endurance of nano - ceramics tool is longer than that of corundum cutting tool and the ceramics tool is more suitable for wood processing.