Acoustic emission from single point machining: Part 1, Source mechanism

Technical Report · Sun Jan 01 00:00:00 EST 1989

OSTI ID:5580375

Heiple, C R; Carpenter, S H; Armentrout, D L; McManigle, A P

Acoustic emission (AE) was monitored during single point, continuous machining of 4340 steel and Ti-6A1-4V as a function of heat treatment. Heat treatments which increase the strength of 4340 steel increase the amount of AE produced during deformation, while heat treatments which increase the strength of Ti-6A1-4V decrease the amount of AE produced during deformation. Trends in rms AE level during machining with increasing strength were similar for both alloys, demonstrating that chip deformation is not a major source of AE in sigle point machining. The data suggest that sliding friction between the nose and/or flank of the tool and the newly machined surface is the primary source of AE.

• Research Organization: EG and G Rocky Flats, Inc., Golden, CO (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC34-90DP62349
• OSTI ID: 5580375
• Report Number(s): RFP-4447-Pt.1-Rev.; ON: DE92012113
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
ACOUSTIC EMISSION TESTING
MACHINING
STEELS
TITANIUM BASE ALLOYS
VANADIUM ALLOYS
DEFORMATION
SLIDING FRICTION
ACOUSTIC TESTING
ALLOYS
FRICTION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
TESTING
TITANIUM ALLOYS
360101* - Metals & Alloys- Preparation & Fabrication