基于响应曲面法的新型高频冲击碾压工艺参数优选
2018-12-20
作者：徐永新1，胡新颖1，董娜1，王艳华2
单位：1河南工学院；2新乡市新机创新机械有限公司
摘要：本文分析了新型高频冲击碾压正交试验数据，采用响应曲面法获得新型高频冲击碾压工艺表面硬度响应曲面拟合预测方程，通过分析预测方程得出了碾压参数对表面硬度的影响规律：表面硬度随碾压工具头直径的增加而增加，当碾压工具头直径达到8.41mm后影响不再显著；表面硬度随预压力的增大而迅速增加，当预压力达到95.4N时表面硬度开始下降；当进给速度较小时，随着进给速度的增大表面硬度反而下降，但进给速度超过00567mm/r后，表面硬度随进给速度的增大又呈现增大趋势。进一步对方程分析获得最优碾压参数，与正交极差分析得到的碾压参数相似。
关键词：高频冲击碾压；响应曲面法；工艺参数优选；表面硬度
中图分类号：TG382；TH162文献标志码：A
Experiment Research on Optimizing Processing Parameters of New High
Frequency Impact Compaction Based on Response Surface Method
Xu Yongxin，Hu Xinying，Dong Na，Wang Yanhua
Abstract:For obtaining the predicted equations of the new high frequency impact compaction of the surface hardness of the response surface，this paper which is used response surface methodology analysed new high frequency impact compaction orthogonal test data.The affected law of the impact compaction parameters on surface hardness is derived by analysing the equations.The surface hardness increased with increasing diameter of the toolhead，the affect is not markedness when the diameter reached 8.41mm.The surface hardness increased rapidly with increase of prepressure，the surface hardness began to fall when the limit reached 95.4N.When the feed speed is small，the surface hardness decreased with the increasing feed.However，at the feed rate above 0.0567mm/r，the surface hardness increased with the feed rate increasing.The optimal impact compaction parameters are obtained via further analysis for equations，which resembled the impact compaction parameters via the orthogonal range analysis.
Keywords:high frequency impact compaction；response surface method；optimizing processing parameters；the surface′s hardness