Milling performance of Inconel 718 based on DC short electric arc machining with graphite and W-Ag electrode materials

Liu, Zhouwei1; Liu, Kai2; Dai, Xiangyu1; Zhou, Jianping1; Xu, Yan1; Zhou, Zongjie1

2022-09-01

10.1007/s00170-022-10029-1

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY   影响因子和分区

0268-3768

1433-3015

In order to solve the problems of poor dimensional accuracy, high-specific energy consumption (SEC), and poor surface integrity in DC short electric arc machining (SEAM), this paper proposes to use W-Ag alloy as the electrode material for machining nickel-based alloy (Inconel 718). Firstly, the effect of voltage and electrode material (graphite and W-Ag alloy) on the material removal rate (MRR), relative electrode wear rate (REWR), surface roughness (Sa), and SEC were investigated, and current and voltage during machining were measured by a multichannel data acquisition system. In addition, the surface morphology, cross section, and element distribution after machining were analyzed. The experimental results showed that W-Ag alloy as a tool electrode can obtain better performance in SEAM; its MRR reach 6314 mm(3)/min at 30 V which is twice as high as graphite electrode. The SEC of W-Ag alloy electrode is 32.64 kJ/cm(3), significantly lower than that of graphite electrode with 84.16 kJ/cm(3). The surface roughness is lower after machining with W-Ag alloy electrode, and the thermal damage layer is only half of that machined with graphite electrode.

Inconel 718 Electrode with W-Ag Short electric arc machining (SEAM) Material removal rate (MRR) Specific energy consumption (SEC) Dimensional accuracy

SCI ; EI

英语

通讯

Natural Science Foundation of China[51765063] ; Key Research and Development Projects in the Autonomous Region[2018B02009-1] ; Xinjiang Uighur Autonomous Region Talent Project[10020000204]

Automation & Control Systems ; Engineering

Automation & Control Systems ; Engineering, Manufacturing

WOS:000849302900001

SPRINGER LONDON LTD

20223612680760

Binary alloys ; Electric arcs ; Graphite electrodes ; Morphology ; Nickel alloys ; Silver alloys ; Surface morphology ; Surface roughness

Energy Utilization:525.3 ; Precious Metals:547.1 ; Nickel Alloys:548.2 ; Electricity: Basic Concepts and Phenomena:701.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

ENGINEERING

Web of Science

1.Xinjiang Univ, Sch Mech Engn, Urumqi 830047, Peoples R China
2.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Guangdong, Peoples R China

Liu, Zhouwei,Liu, Kai,Dai, Xiangyu,et al. Milling performance of Inconel 718 based on DC short electric arc machining with graphite and W-Ag electrode materials[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2022,122:2253-2265.

Liu, Zhouwei,Liu, Kai,Dai, Xiangyu,Zhou, Jianping,Xu, Yan,&Zhou, Zongjie.(2022).Milling performance of Inconel 718 based on DC short electric arc machining with graphite and W-Ag electrode materials.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,122,2253-2265.

Liu, Zhouwei,et al."Milling performance of Inconel 718 based on DC short electric arc machining with graphite and W-Ag electrode materials".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 122(2022):2253-2265.