摘要
为加强氮化硅陶瓷的应用,实现高效精密磨削加工,必须深入研究氮化硅陶瓷磨削表面质量的影响规律及其工艺参数优化。根据氮化硅陶瓷磨削试验,建立磨削力、表面粗糙度、等效加工时间和亚表面损伤深度等4个磨削加工结果的理论计算模型和二次回归响应曲面模型;利用模型的响应曲面图直观分析砂轮线速度、工件速度、磨削深度等磨削工艺参数对磨削加工结果的影响规律。以磨削加工结果综合最小为目标,进行磨削工艺参数的多目标参数优化,得出砂轮线速度为30 m/s、工件速度为40 mm/s、磨削深度为5μm的优化工艺参数组合。
In order to strengthen the application of silicon nitride ceramics and achieve the efficient precision grinding, it is essen- tial to study the influence law of the grinding surface quality and the parameters optimization of silicon nitride ceramics. Accord- ing to the experimental results and theory of silicon nitride ceramic grinding, the theoretical calculation model and the quadratic regression response surface models of grinding force, surface roughness, equivalent processing time and sub-surface damage depth were established. The influence of grinding speed, workpiece speed and grinding depth on the grinding results was ana- lyzed using the response surface diagram of the models. Taking the integrated minimum of grinding results as the goal, the multi- objective parameters optimization was carried out for the grinding process parameters. The combination of optimized parameters is obtained, that is 30 m/s, 40 mrrds and 5 txm for grinding speed, workpieee speed and grinding depth, respectively.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2017年第5期5-10,共6页
Ordnance Material Science and Engineering
基金
国家自然科学基金(51505144)
湘潭大学复杂轨迹加工工艺及装备教育部工程研究中心开放课题(07KZ/KZ070040115)
关键词
氮化硅陶瓷
磨削
工艺参数
优化
响应曲面法
silicon nitride ceramic
grinding
process parameters
optimization
response surface methodology
