机械制造与自动化2025，Vol.54Issue(5)：21-26,6.DOI:10.19344/j.cnki.issn1671-5276.2025.05.004
往复运丝电火花线切割加工FGH96试验研究
Experimental Research on Reciprocating Wire Electrical Discharge Machining FGH96
摘要
Abstract
The experiment on the reciprocating wire electrical discharge machining(WEDM)of powder superalloy FGH96 was carried out to study the influence of process parameters such as pulse width,duty cycle and peak current over machining efficiency,surface roughness and recast layer thickness,and optimize a parameter combination of 8 μs in pulse width,10%in duty cycle and 12 in peak current level.On this basis,the change of working fluid conductivity was used to simulate the influence of working time of the working fluid.The experimental results show that the working fluid needs to be replaced when its conductivity is increased to about 5.27 mS/m.The machining experiments of fir-tree slot and the analysis on the machining accuracy and the recast layer thickness indicate that the recast layer thickness at the top tooth is less than that at tooth side and tooth root,which preliminarily verifies the applicability of reciprocating WEDM in rough machining of turbine slots.关键词
电火花线切割/粉末高温合金/正交试验/重铸层/榫槽Key words
WEDM/powder superalloy/orthogonal test/recast layer/turbine slot分类
航空航天引用本文复制引用
冯业飞,梁静耀,李元锟,韩钊,王旭青,房晓龙..往复运丝电火花线切割加工FGH96试验研究[J].机械制造与自动化,2025,54(5):21-26,6.基金项目
国家自然科学基金项目(51975291) （51975291）
航空发动机及燃气轮机基础科学中心基金项目(P2022-B-Ⅳ-010-001) （P2022-B-Ⅳ-010-001）
中央高校基本科研业务费资助项目(NE2022004) （NE2022004）
