Gunaraj, Lawrance, Sam Paul, Jazeel Mohammed, Edwin Sudhagar, and Titus Thankachan. 2023. “Optimization of Cutting Parameters for Hard Boring of AISI 4340 Steel Using Signal-to-Noise Ratio, Grey Relation Analysis and Analysis of Variance”. Periodica Polytechnica Mechanical Engineering 67 (4):259-69. https://doi.org/10.3311/PPme.21729.