CAJ | 학술논문

针对航空航天发动机关键零件--镍基高温合金盘轴类零件的大深径比盲孔进行了电火花加工工艺技术研究。通过低刚性深盲孔零件结构特点分析，设计专用导向套、带冲液可调电极夹具等，以满足深径比＞45、孔径φ≤5mm的深盲孔加工要求；通过优化工艺流程，合理确定粗、中、精加工工艺方法和余量，得到可实用化的加工速度；通过系统工艺试验，确定影响镍基高温合金加工特性的电火花工艺参数，得到快速、稳定、可靠加工的有关参数与条件。结果表明：电火花加工工艺方法是解决镍基高温合金盘轴类零件大深径比盲孔加工的有效方法，所加工零件满足了图纸要求。
침대항공항천발동궤관건령건--얼기고온합금반축류령건적대심경비맹공진행료전화화가공공예기술연구。통과저강성심맹공령건결구특점분석，설계전용도향투、대충액가조전겁협구등，이만족심경비＞45、공경φ≤5mm적심맹공가공요구；통과우화공예류정，합리학정조、중、정가공공예방법화여량，득도가실용화적가공속도；통과계통공예시험，학정영향얼기고온합금가공특성적전화화공예삼수，득도쾌속、은정、가고가공적유관삼수여조건。결과표명：전화화가공공예방법시해결얼기고온합금반축류령건대심경비맹공가공적유효방법，소가공령건만족료도지요구。
It researches EDM technology of blind hole with large depth to diameter ratio in nickel-based superalloy plate and shaft parts. Through the low ri-gidity of deep blind hole part structure analysis, it designs the special oriented sleeve and adjustable liquid electrodes f ixture to meet requirements of deep blind hole process-ing with the depth to diameter ratio >45, the apertureφ≤5mm. By optimizing the technological process, it de-termines allowance, coarse, medium and f inishing process reasonably, and gets practical processing speed. Through system experiment process, it determines the nickel-based superalloy processing characteristics of EDM process pa-rameters, gets related parameters and conditions of fast, stable and reliable processing. Results show that the EDM processing method is effective to solve the large depth to diameter ratio blind hole of nickel-based superalloy, and the processing parts meet the drawing requirements.