摘 要
精密机械加工的表面完整性对零件性能和寿命至关重要，尤其在高端制造业中，对表面质量的要求越来越高。本研究旨在通过分析加工工艺参数与表面完整性之间的关系，建立评价体系并提出优化策略。通过有限元仿真和实验测试，研究了难加工材料在不同切削参数下的表面完整性，发现优化参数能显著提升表面质量，如表面粗糙度降低30%，残余压应力提高25%以上。引入智能算法优化加工参数，实现了表面完整性的最优化。同时，建立了多材料特性的表面完整性预测模型，为生产提供理论和技术支持。研究结果为精密加工理论和关键零部件高质量加工提供了有效方案。
关键词：表面完整性 精密机械加工 参数优化
Abstract
The surface integrity of precision machining is crucial to the performance and life of parts, especially in the high-end manufacturing industry, where the surface quality is more and more required. The purpose of this study is to establish an evaluation system and propose optimization strategies by analyzing the relationship between processing process parameters and surface integrity. Through finite element simulation and experimental tests, we studied the surface integrity of hard-to-work materials under different cutting parameters, and found that the optimized parameters can significantly improve the surface quality, such as reducing the surface roughness by 30% and increasing the residual compressive stress by more than 25%. Intelligent algorithm is introduced to optimize the processing parameters to realize the optimization of surface integrity. At the same time, a surface integrity prediction model of multimaterial properties was established to provide theoretical and technical support for production. The results provide effective solutions for precision machining theory and high quality machining of key parts.
Keyword:Surface integrity Precision machining Parameter optimization
目 录
1 引言 1
2 表面完整性评价指标体系 1
2.1 表面粗糙度分析 1
2.2 残余应力测量 2
2.3 表面微观结构表征 3
3 加工工艺对表面完整性的影响 3
3.1 切削参数优化 3
3.2 冷却润滑技术应用 4
3.3 工具材料选择 5
4 表面完整性控制策略与优化 5
4.1 在线监测系统构建 5
4.2 表面改性处理方法 6
4.3 质量控制与反馈机制 7
5 结论 7
参考文献 9
致谢 10
