摘要
航空发动机是装备制造领域的高端产品,镍基粉末高温合金广泛运用于航空发动机部件,但其强度高的特性导致加工困难。本文采用正交试验法,通过参数优化试验探究不同切削参数对二代粉末FGH96高温合金钻削力、扭矩、表面形貌、粗糙度、残余应力以及刀具磨损、加工孔精度等切削性能的影响。研究结果表明:轴向力和扭矩随进给量增大而显著增大;FGH96表面粗糙度在不同参数下受影响较小;FGH96高温合金的残余应力随切削速度的增大而增大;其他条件相同时,啄钻加工的孔精度优于连续钻削的孔精度,FGH96高温合金加工孔精度在啄钻、切削速度为30 m/min、进给量为0.05 mm/r的条件下最优。
Aero-engine is a high-end product in the field of equipment manufacturing,nickel-based powder high-temperature alloys are widely used in aero-engine.However,due to the high strength of powder high-temperature alloys,they are difficult to be processed,of which drilling is particularly prominent.This paper adopts orthogonal experiments to investigate the effects of different cutting parameters on the cutting performance of the second-generation powder high-temperature alloy FGH96,such as drilling force,torque,surface morphology,roughness,residual stress,as well as tool wear and machining hole accuracy,etc.,by means of parameter optimization tests.The results show that:axial force and torque increase significantly with the increase of feed;FGH96 surface roughness is less affected by different parameters;FGH96 high temperature alloy residual stress increases with the increase of cutting speed;other conditions are the same,pecking drilling hole accuracy is better than continuous drilling,FGH96 high temperature alloy machining hole roundness in the pecking drilling cutting speed of 30 m/min,feed rate of 0.05 mm/r is optimal.
作者
钟立翔
陈锦华
马铮
明伟伟
Zhong Lixiang;Chen Jinhua;Ma Zheng;Ming Weiwei(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;不详)
出处
《工具技术》
北大核心
2025年第7期13-20,共8页
Tool Engineering
基金
国家自然科学基金(52375455)。
关键词
粉末高温合金
切削参数
钻削
powdered high temperature alloy
cutting parameter
drilling process
