Phase transformation and deformation of the high-frequency induction brazed grinding wheel based on multi-field coupling
Phase transformation and deformation of the high-frequency induction brazed grinding wheel based on multi-field coupling
复制标题
基于多场耦合的高频感应钎焊砂轮相变与变形
DOI：
10.1007/s00170-023-10876-6
复制
发表时间：
2023-01
影响因子：
3.4
通讯作者：
Weining Lei
中科院分区：
文献类型：
--
作者：
Qilin Li;Xichao Wang;Chaopeng Hou;Kai Ding;Weibin Ren;Jinjin Han;Weining Lei
With the characteristic of the high bonding strength to matrix, good sharpness, and large chip-storage spaces, the brazed super abrasive grinding wheels have superiorities in the machining of difficult-to-machine materials. However, thermal deformation is caused by the high temperature during the brazing process, leading to the accuracy of the brazed grinding wheel being degraded greatly. By means of local heating, high-frequency induction brazing can reduce the thermal deformation of the wheel. Aiming at the thermal deformation mechanism of the induction brazed wheel, a numerical simulation model of thermal-stress-phase multi-field coupling was established considering the temperature-dependent physical properties of the material. The simulation result indicated that the phase transformation occurred near the work surface of the wheel substrate. The depth of phase transformation layer decreased from 6.0 mm to 2.9 mm with the scanning speed increasing from 0.5 mm/s to 2.0 mm/s. The microstructure of the phase transformation layer mainly consisted of ferrite, pearlite, and bainite after brazing. An appropriate scanning speed was more important for the high accuracy of the wheel substrate during the induction brazing, since it had remarkable influence on the stress and deformation than brazing temperature. The experimental results of the microstructure morphology and deformation proved that the numerical simulation model was correct with 10.4% error.
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DOI：
10.1016/j.msea.2021.141628
发表时间：
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期刊：
Materials Science and Engineering: A
影响因子：
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通讯作者：
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