Surface Integrity and Fatigue Property of a High Speed Milled Titanium Alloy

Guo Sheng Geng; Jiu Hua Xu

doi:10.4028/www.scientific.net/AMR.53-54.305

Paper Titles

Study on the Effect of Grinding Parameters to the White Layer Formation in Grinding SKD-11 Hardened Steel
p.279

The Properties and the Influence Factors of the White Layer in the Surface Grinding
p.285

The Characteristics of Surface Residual Stresses by Plane Grinding Invar and the Effects of Them on Structural Stability
p.293

Simulation System for Quality Prediction and Parameters Optimization when Machining Ceramics Die Material
p.299

Surface Integrity and Fatigue Property of a High Speed Milled Titanium Alloy
p.305

Surface Integrity Induced by Abrasive Machining Sapphire Wafer
p.311

Study on Variable Spot Cladding for Large Area Laser Surface Modification
p.319

Cone-Shaped Hard Carbon Films Grown by Inductively Coupled RF Plasma with RF or DC Bias Voltage
p.325

Influence of Surface Morphology of Diamond Films on their Frictional Behaviors in Dry and Water Environments
p.331

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 53-54Surface Integrity and Fatigue Property of a High...

Surface Integrity and Fatigue Property of a High Speed Milled Titanium Alloy

Abstract:

Surface integrity has a great effect on the fatigue property of titanium alloy. The surface integrity and fatigue property of a high speed milled Ti-6.5Al-2Zr-1Mo-1V (TA15) titanium alloy were investigated in this research. The main objective of this paper is to study the influence of milling speed on the surface integraty and fatigue property of the machined part. The surface roughness, work hardening, metallurgical structure and residual stress of the machined surface were studied in a cutting speed range of from 50m/min to 300m/min. To verify the relationship between cutting speed and the surface integrity of machined surface, the fatigue property of titanium alloy specimens milled at four different cutting speeds ranging from 50 to 200m/min were compared at two stress levels. This research shows that the cutting speed has little effect on the work hardening, metallurgical structure and residual stress, but the surface roughness decreases with the increasing cutting speed. Therefore, increasing milling speed has a positive effect on the surface integrity and fatigue property of the machined surface.