| Citation: | LI Qilin，WANG Xichao，DING Kai，et al.Investigation of temperature uniformity of profiled CBN grinding wheel under high frequency induction brazing based on response surface methodology［J］.Journal of Aerospace Power，2022，37（9）：1915‑1922. doi: 10.13224/j.cnki.jasp.20220041
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During high frequency induction brazing of super abrasive grinding wheels，it was difficult to get a uniform temperature distribution on the grinding wheel surface，especially the profiled grinding wheel.For this problem，a characterization method of temperature uniformity was proposed.Response surface methodology model of temperature uniformity and average temperature was established based on the finite element method results.Based on this model，analysis of variance was conducted to investigate the influence factors on the temperature uniformity of profiled grinding wheel.It was found that the degrees of the influence on the temperature uniformity and average temperature from maximum to minimum were heating gap，induction current and length of magnetizer respectively.With the target of average temperature and temperature uniformity，the optimal parameters were obtained based on response surface methodology method.The experimental results verified that the error of the response surface methodology models was below 6.94%.Finally，high frequency induction brazing of profiled cubic boron nitride（CBN）grinding wheel was carried out with the optimal parameters.A consistent brazing surface with good spread ability was observed，indicating that good temperature uniformity on the profiled surface was obtained during induction brazing.
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