干冰颗粒射流冷却铣削Inconel 718切削性能评价研究
Research on Cutting Performance Evaluation of Milling Process for Inconel 718 Assisted With Dry Ice Particle Jet Cooling
辛明泽 1王兵 1刘战强 1赵明 2赵金富1
作者信息
- 1. 山东大学机械工程学院高效洁净机械制造教育部重点实验室,济南 250061;山东大学机械基础国家级实验教学示范中心,济南 250061
- 2. 中国航发沈阳黎明航空发动机有限责任公司,沈阳 110862
- 折叠
摘要
镍基高温合金Inconel 718 以高韧性和低导热性等物理力学性能使其成为典型难加工材料,在切削过程中易产生大量切削热,导致刀具磨损加剧并影响加工表面质量.干冰作为一种清洁冷却介质,具有临界温度低、潜热高、升华后无残留等特点,在难加工材料高效准干式切削中具有重要应用潜力.本文将干冰颗粒射流冷却辅助方法应用于Inconel 718 切削加工,通过降低切削温度对改善Inconel 718 切削性能的有益效果探索该绿色工艺.开展了干冰颗粒射流冷却辅助铣削试验,分析了干冰颗粒冷却工艺对Inconel 718 加工过程中铣削温度、铣削力以及加工表面粗糙度的影响规律.结果表明,在干冰颗粒射流冷却条件下,Inconel 718加工过程中铣削温度和铣削力得到显著降低,同时加工表面粗糙度减小,证明干冰颗粒射流冷却辅助加工能够有效改善高温合金材料的切削性能.
Abstract
Nickel-based superalloy Inconel 718 is a typical difficult-to-machine material due to its physical and mechanical properties such as high strength,high toughness,and low thermal conductivity.It easily generates a large amount of cutting heat during the cutting process,which leads to increased tool wear and affects the machined surface quality.As a clean cooling medium,dry ice has the characteristics of low critical temperature,high latent heat,and no residue after sublimation.Such superiorities make dry ice have great application potential in efficient quasi-dry cutting of difficult-to-machine materials.This research applies the assisted method of dry ice particle jet cooling to the machining process for Inconel 718.The beneficial effects of this green manufacturing process are explored on improving the cutting performance of Inconel 718 through reducing cutting temperature.The dry ice particle jet cooling-assisted milling experiments of Inconel 718 are performed.The effects of cooling process parameters on the cutting temperature,cutting force,and machined surface roughness of Inconel 718 are analyzed.The results show that the cutting temperature and cutting force during the milling process of Inconel 718 are significantly reduced under dry ice particle jet cooling conditions,while the machined surface roughness can be reduced.The research proves that the dry ice particle jet cooling can effectively enhance the cutting performance of high-temperature alloys.
关键词
射流冷却/干冰颗粒/绿色加工/切削性能/Inconel/718Key words
Jet cooling/Dry ice particles/Green machining/Cutting performance/Inconel 718引用本文复制引用
基金项目
国家自然科学基金(52175420)
中国科协青年人才托举工程(YESS20210009)
山东省优秀青年科学基金(2022HWYQ-059)
泰山学者青年专家计划(tsqn202103015)
出版年
2024
NETL
NSTL
万方数据