A highly energy-efficient milling of Inconel 718 via modulated short electric arc machining

Zhou，Zongjie1; Liu，Kai2; Zhou，Jianping1; Xu，Yan1; Wang，Lizhong1,3

2022-06-01

10.1016/j.jmapro.2022.03.051

Journal of Manufacturing Processes   影响因子和分区

1526-6125

2212-4616

An excellent and advanced manufacturing method named modulated short electric arc machining (M-SEAM) was proposed in this study to solve the problems of low machining efficiency and high specific energy consumption (SEC) for difficult-to-machine materials in the traditional electric discharge machining (EDM) and electric arc machining (EAM) process. The discharge channel is established by the collision between the electrode and the workpiece. The arc spreads and moves as the electrode rotates. Moreover, the energy balance equation of the modulated arc was established, which revealed that the volt-ampere characteristic is resistive when the frequency of pulse voltage tends to infinity in the steady state, the arc had a large relative thermal inertia, and two stable operating points were analyzed. M-SEAM processing was performed using graphite and Inconel 718 as electrode and workpiece materials, respectively. The results showed a maximum MRR of 49,020 mm/min, and the relative electrode wear rate (REWR) and SEC were limited to 0.92% and 50.21 kJ/cm, respectively. The peak current was 1940 A, and the maximum discharge time for a single arc was 328.56 ms.

Collision arc striking M-SEAM Machining characteristic

SCI ; EI

英语

通讯

National Natural Science Foundation of China[51765063];

Engineering

Engineering, Manufacturing

WOS:000793578900004

ELSEVIER SCI LTD

20221611978569

Electric arcs ; Electrodes ; Energy efficiency

Energy Conservation:525.2 ; Energy Utilization:525.3 ; Electricity: Basic Concepts and Phenomena:701.1

2-s2.0-85128165557

Scopus

1.School of Mechanical Engineering,Xinjiang University,Urumqi,830047,China
2.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.State Key Laboratory for Manufacturing Systems Engineering,Xi'an Jiaotong University,Xi'an,710049,China

Zhou，Zongjie,Liu，Kai,Zhou，Jianping,et al. A highly energy-efficient milling of Inconel 718 via modulated short electric arc machining[J]. Journal of Manufacturing Processes,2022,78:46-58.

Zhou，Zongjie,Liu，Kai,Zhou，Jianping,Xu，Yan,&Wang，Lizhong.(2022).A highly energy-efficient milling of Inconel 718 via modulated short electric arc machining.Journal of Manufacturing Processes,78,46-58.

Zhou，Zongjie,et al."A highly energy-efficient milling of Inconel 718 via modulated short electric arc machining".Journal of Manufacturing Processes 78(2022):46-58.