论文信息 - Time-efficient Prediction of the Surface Layer State after Deep Rolling using Similarity Mechanics Approach

Time-efficient Prediction of the Surface Layer State after Deep Rolling using Similarity Mechanics Approach

Abstract Highly stressed components like turbine blades made of IN718 (ASTM: B637), crankshafts made of 42CrMo4 (ASTM: A322- 4140) or connecting rods made of GGG60 (ASTM: A536-80-55-06) have to satisfy stringent requirements regarding durability and reliability. The induction of compressive stresses and strain hardening in the surface layer of technical components has proven to be a promising method to significantly increase the fatigue resistance. These required surface layer properties can be achieved by deep rolling. The determination of optimal deep rolling process parameters still requires elaborate experimental set-up and subsequent time- and cost-intensive measurements. Therefore, this work provides a new approach to determine surface layer properties by applying similarity mechanics in combination with FE-simulation of the deep rolling process. Thereby, this approach provides an efficient estimation of process results in which time-costly and challenging FE-simulations become redundant.

[1] C. Teitelboim. RADIATION REACTION AS A RETARDED SELF-INTERACTION. , 1971 .

[2] E. Zoestbergen,et al. SURFACE TREATMENT IV , 1999 .

[3] Fritz Klocke,et al. Festwalzen von Fan- und Verdichterschaufeln , 2006 .

[4] L. Wagner,et al. Mechanical surface treatments on titanium, aluminum and magnesium alloys , 1999 .

[5] P. O'hara. Superfinishing and shot peening of surfaces to optimise roughness and stress , 1970 .

[6] E. Buckingham. On Physically Similar Systems; Illustrations of the Use of Dimensional Equations , 1914 .

[7] Helmut Wohlfahrt,et al. Influence of shot peening and high pressure water peening on near surface microstructure of 316 Ti stainless steel , 1970 .

[8] Paul S. Prevéy,et al. The Effect of Low Plasticity Burnishing (LPB) on the HCF Performance and FOD Resistance of Ti-6AI-4V , 2001 .

[10] Fritz Klocke,et al. Finite Element Analysis of the Roller Burnishing Process for Fatigue Resistance Increase of Engine Components , 2011 .

[11] Berthold Scholtes,et al. On the influence of mechanical surface treatments—deep rolling and laser shock peening—on the fatigue behavior of Ti–6Al–4V at ambient and elevated temperatures , 2003 .