0 votes 0 votes The non-traditional machining process that essentially requires vacuum is electron beam machining electro chemical machining electro chemical discharge machining electro discharge machining Materials, Manufacturing and Industrial Engineering gateme-2016-set1 materials-manufacturing-and-industrial-engineering machining-and-machine-tools-operations + – Arjun asked Feb 24, 2017 • recategorized Mar 5, 2021 by Lakshman Bhaiya ♦Arjun 28.5k points answer See all 0 reply