A　hybrid　technique　of　additive　manufacturing　and　subtractive　process　has　provided　a　new　solution　combining　product　design　and　control　by　software.　Wire　Arc　Additive　Manufacturing　(WAAM)　process　wins　well-respected　because　of　its　low　cost　and　high　efficiency　of　deposition,　nevertheless　the　process　has　its　limitation　of　high　heat　input　and　low　forming　accuracy.　A　new　process　of　additive　manufacturing　with　high　efficiency　of　modeling　is　urgent　needed　which　can　control　heat　transfer,　mass　transfer　and　force　transfer.　To　overcome　the　disadvantage　upon,　various　hybrid　manufacturing　techniques　have　been　developed　with　high　efficiency　and　controlled　modeling　in　recently.　The　machining　process　in　hybrid　manufacturing　has　more　different　characteristics　from　traditional　material　removal　processes,　such　as　residual　stress　and　heat　in　the　blank.　These　influence　the　whole　efficiency　of　the　hybrid　manufacturing.　The　essential　task　of　this　paper　is　to　explore　the　feasibility　of　thermal　machining　during　this　process　and　make　rational　use　of　AM　in　order　to　obtain　optimal　accuracy.