工艺参数对7050铝合金铣削表面质量的影响
Influence of Process Parameters on Surface Quality in Milling of 7050 Aluminum Alloy
王昱晨 1何利华 1罗冬妮 1潘建峰 2倪敬1
作者信息
- 1. 杭州电子科技大学 机械工程学院,杭州 310018
- 2. 杭州职业技术学院 特种装备学院,杭州 310018
- 折叠
摘要
为了探究7050 铝合金铣削表面质量的关键影响因素,寻找最优工艺参数,对 7050 铝合金在浇注冷却条件下进行了正交试验,建立了表面粗糙度与切削深度、主轴转速之间的回归模型,分析了加工过程中刀具-工件相对接触状态不同时所产生的刀痕差异.结果表明:切削深度对表面粗糙度的影响最大,主轴转速其次,进给量的影响最小;刀痕的表现形式与刀具-工件相对接触状态存在直接联系,刀具切入工件位置主要受切削深度的影响产生单向圆弧状刀痕,刀具完全进入铣削工件后则会形成交错的圆弧状刀痕,在刀具离开工件位置主要受进给量影响产生较浅刀痕.
Abstract
In order to explore the key effects of the surface quality in milling of 7050 aluminum alloy and the optimal processing parameters,the orthogonal experiment of 7050 aluminum alloy under the condition of flushing was carried out,and the regression model between the surface roughness and the cutting depth,feed rate and spindle speed was established.The differences of machined trace caused by the different relative states between the tool and the workpiece during the machining were analysed.The results showed that the cutting depth had the greatest influence on the surface roughness,followed by the spindle speed and the feed rate.The manifestation of the machined trace was directly related to the tool-workpiece contact state.The unidirectional arc-shaped traces could be found when the tool cut into the workpiece,mainly affecting by the cutting depth.The staggered arc-shaped traces were formed while milling in the middle of the workpiece.The shallower traces occurred when the tool cut out of the workpiece because of the feed rate.
关键词
工艺参数/7050铝合金/铣削表面质量/刀痕Key words
processing parameters/7050 aluminum alloy/surface quality of milling/machined trace引用本文复制引用
基金项目
浙江省自然科学基金探索项目(LQ20E050012)
浙江省基础公益研究计划(LGG20E050002)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据