基于真实轨迹的高强度铝合金铣削加工数值模拟  

Numerical Simulation of High-strength Aluminum Milling Based on Real Trace

作　　者：张艳岗[1] 苏铁熊[1] 毛虎平[1] 王连宏 卢继平[3] 

机构地区：[1]中北大学机械与动力工程学院,太原030051 [2]山西柴油机工业有限责任公司,山西大同037036 [3]北京理工大学机械与车辆学院,北京100081

出　　处：《组合机床与自动化加工技术》2014年第1期153-155,160,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金(51275489);车用动力基础科研创新计划项目

摘　　要：为避免铣削加工仿真时由于似建模带来的误差,对铣削加工仿真模型构建方法进行了研究,在分析了铣削加工时工件和刀具的运动规律的基础上,提出了一种基于真实轨迹的工件模型和三维螺旋刃铣刀模型的构建方法,并进一步进行了高强度铝合金铣削加工数值模拟,得到了铣削过程中切屑形状和切削力、切削温度随时间的变化规律。通过与基于近似轨迹的铣削加工数值模拟结果对比分析表明,文中的提出基于真实轨迹的铣削加工数值模拟更加接近实际加工,论文研究成果可为材料铣削状态预测及切削参数的设计优化提供参考。Abstract：To avoid the error of the milling simulation caused like modeling, research of milling simulation modeling method was carried out and a modeling method was put forward about workpiece model based on real trace and three-dimensional spiral blade cutter model on the basis of the law of motion of the workpiece and tool in the analysis of the milling, And further subjected to numerical simulation of a high-strength aluminum alloy milling, chip shape and variation of cutting force and cutting temperature with time in a milling process was gained. Research results compared with numerical simulation analysis of alloy milling based on approximate trace show that the text of the proposed method based on real-milling machining simulation is more realistic. Results in the text of the dissertation is to provide a reference for the material milling state prediction and design optimization of cutting parameters.

关 键 词：高强度铝合金 铣削加工 次摆线 螺旋刃铣刀 数值模拟 

分 类 号：TH162[机械工程—机械制造及自动化] TG659[金属学及工艺—金属切削加工及机床]