High speed end milling of a zirconium alloy. Issue 1 (2015)

• Record Type: Journal Article
• Authors: Hood, Richard; Soo, Sein Leung; Sage, Colin; Carcass, Phill
• Is Part Of: CIRP annals. Volume 64:Issue 1(2015)
• Page Start: 105
• Page End: 108
• Publication Date: 2015
• Subjects: Surface integrity -- Milling -- Zirconium; Production engineering -- Research -- Periodicals; 670.5
• DOI: 10.1016/j.cirp.2015.04.057
• Languages: English
• ISSNs: 0007-8506

Abstract

Abstract: The paper details a comprehensive investigation into the machinability and surface integrity of Zircaloy-4 following end milling. Tool wear after machining for ∼30 min at a cutting speed of 320 m/min was low, with surface roughness (Ra) values typically <0.6 μm. No evidence of thermal damage was detected on any of the surface/subsurface cross-sections analysed, although adhesion/re-deposition and smeared material with a width of ∼50 μm was prevalent on the workpiece surface, particularly when operating at higher cutting speeds (320 m/min) and depths of cut (0.6 mm). Surface residual stresses were compressive up to a value of 120 MPa.