Taperness and Linear Wear Rate Analysis of High Aspect Ratio EDM Meso-Holes in Ti-6Al-4V

2nd International Conference on Advancements in Aeromechanical Materials for Manufacturing

航空航天工程;材料科学;机械制造

Rajamanickam, S.^1 ; Prasanna, J.^1

Department of Mechanical Engineering, CEG, Anna University, Chennai

600025, India^1

关键词: Brass tubes;    Gap voltage;    High aspect ratio;    High-accuracy;    Input parameter;    Linear wear;    OFF time;    Orthogonal array;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/455/1/012025/pdf
DOI  :  10.1088/1757-899X/455/1/012025

来源: IOP

【 摘 要 】

EDM using rotary tube electrode is best suited for machining high aspect ratio meso-holes in Ti-6Al-4V. In this paperwork, we have analyzed taperness and linear wear rate of the electrode for implementation of high aspect ratio EDM in drilling meso-holes. An experimental layout is prepared to use Taguchi's L 27 orthogonal array. The 300 μm brass tube electrode was selected with high accuracy for the entire experiment. Using TOPSIS the optimized input parameters (current, gap voltage, on-time, and off-time) are selected for responses such as taperness and linear wear rate among the available. By the measurement minimum, taperness of 0.0029o and linear wear rate of 1.5131 mm/sec were observed in EDM using brass tube electrodes.