摘要
Abstract
In response to the roundness error rebound problem in turning processes,the causes of the error are analyzed and the influence of different process parameters on the error rebound is investigated.The goal is to optimize the process parameters to minimize roundness error rebound.The orthogonal experimental method is employed,with the error rebound coefficient as the experimental index and the main rake angle in tool geometry,cutting speed,and feed rate as the experimental factors.Each factor is set at three levels:high,medium and low.Outer round turning experiments are designed and conducted accordingly.The range analysis and variance analysis methods are then used to statistically process the experimental data and identify the optimal process parameter scheme.Finally,the optimal scheme is verified.The results indicate that the order of influence of the process parameters on roundness error rebound,from greatest to least,is as follows:main rake angle,feed rate,and cutting speed.The effects of main rake angle and feed rate on roundness error rebound are highly significant,while the effect of cutting speed is significant.By setting the main rake angle to a high level,the feed rate to a low level,and the cutting speed to a high level,the roundness error rebound coefficient can be minimized.The study provides reference and guidance for the process design in mechanical machining,such as outer round turning,to reduce error rebound.关键词
外圆加工/误差复映/工艺参数/正交试验/方差分析Key words
outer diameter machining/error replication/process parameters/orthogonal experiment/variance analysis分类
矿业与冶金
