Surface defects were demonstrated to result from high productivity machining (HPM) as well as conventional machining of a titanium alloy Ti-6Al-4V, with HPM causing the larger sized defects. These defects could act as initiation sites for fatigue cracks showing that machining would affect fatigue strength and life of the part produced. A finishing pass appears to remove the defects. Better understanding is needed of the relationships between machining, surfaces, and strength.
Effects of High Productivity Machining on Ti-6Al-4V Surface Topography
Sae Technical Papers
SAE 2004 Aerospace Manufacturing & Automated Fastening Conference & Exhibition ; 2004
2004-09-21
Aufsatz (Konferenz)
Englisch
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