摘要
高温合金蜂窝是一种典型的薄壁多孔结构材料,被广泛应用于航空涡轮发动机之中。但由于高温合金蜂窝薄壁的结构特性,使其在加工过程中极易出现蜂窝壁毛刺。因此,探究刀具侧刃几何角度对毛刺形成的影响对于提高蜂窝的加工质量具有重要意义。本文通过铣削实验和ABAQUS软件有限元模拟,探究刀具螺旋角、侧刃前角和后角对蜂窝壁加工毛刺的影响规律。研究证明,螺旋角和侧刃前角对蜂窝壁毛刺尺寸的影响较大,应分别控制在30°~35°,18°~22°;侧刃后角的影响较小,在考虑刀具寿命的前提下后角应选择8°~12°。
High-temperature alloy honeycomb is a typical thin-walled cellular material,it is widely used in aviation turbine engines.However,due to the thin-walled characteristics,burrs are easily formed on the honeycomb walls during processing.Therefore,this part of the material cannot be completely removed and remains on the honeycomb wall,resulting in burrs and clogging of the honeycomb holes.In addition,due to the good processing plasticity of high-temperature alloys,burrs are more likely to occur during the processing.Therefore,exploring the influence of the geometric angle of the cutting edge on the formation of burrs is of great significance for improving the machining quality of honeycomb.This article explores the influence of the helix angle,rake angle,and relief angle on the machining burrs of honeycomb walls through milling experiments and ABAQUS finite element simulation.Research has shown that the helix angle and the rake angle have a significant impact on the burr size of the honeycomb wall,they should be controlled at 30°-35°and 18°-22°respectively.The influence of the relief angle is relatively small,it should be selected between 8°and 12°considering the tool life.
作者
刘畅
段春争
王超
田晓东
李超
Liu Chang;Duan Chunzheng;Wang Chao;Tian Xiaodong;Li Chao(School of Mechanical Engineering,Dalian University of Technology,Dalian,Liaoning 116024,China;不详)
出处
《工具技术》
北大核心
2025年第9期48-53,共6页
Tool Engineering
基金
国家自然科学基金(52275409)。
关键词
高温合金蜂窝
侧铣
蜂窝壁毛刺
ABAQUS有限元仿真
刀具角度
high-temperature alloy honeycomb
side milling
honeycomb wall burr
ABAQUS finite element simulation
tool angel
作者简介
第一作者:刘畅,硕士研究生,大连理工大学机械工程学院,116024辽宁省大连市;通信作者:段春争,教授,大连理工大学机械工程学院,116024辽宁省大连市。
