0 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 257 views answer comment Share Follow Add Sync Questions 0 reply Please log in or register to add a comment.