... changes to surface integrity. This article explains the formation mechanism of machined surface microfeatures and residual stress fluctuations associated with serrated chip formation, based on a finite element model of machining Waspaloy using the coupled Eulerian–Lagrangian method. The model is validated...

.... Understanding the contribution of inherent residual stress in wrought Al 7050-T7451 plate, common in aircraft manufacture, to distortion of high-aspect-ratio machined parts is critical but remains problematic due to the alloy's low residual stress magnitude over large geometries. Prior investigations...

...Ritin Mathews; Arif Malik; Jaydeep Karandikar; Christopher Tyler; Scott Smith Residual stress (RS) significantly impacts the mechanical performance of components. Measurement of RS often provides incomplete data in terms of components of stress and spatial density. Employing such fields in finite...

...Shekhar Srivastava; Rajiv Kumar Garg; Anish Sachdeva; Vishal S. Sharma Accumulated heat input during layer deposition causes high residual stress in the Wire-Arc Additive Manufacturing (WAAM) components. The developed residual stress results in defects like distortion, delamination, cracks, and low...

...Bikash Kumar; Swarup Bag; M. Ruhul Amin The assessment of welding-induced residual stress is always of significant interest due to its adverse effect on the structural stability and mechanical performance of the welded structure. Incorporation of intricate phenomena, in particular, thermal gradient...

...Karan S. Derekar; Bilal Ahmad; Xiang Zhang; Sameehan S. Joshi; Jonathan Lawrence; Lei Xu; Geoff Melton; Adrian Addison Development of residual stress of high magnitude, to the extent of material yield strength and in some cases higher than yield strength, is one of the major challenges faced...

...Chao Liu; Yan He; Yufeng Li; Yulin Wang; Shilong Wang; Yan Wang The residual stresses could affect the ability of components to bear loading conditions and also the performance. The researchers considered workpiece surface as a plane and ignored the effect of surface topography induced...

...Nejah Tounsi; Tahany El-Wardany Part I of these two-part papers will investigate the effect of three finite element method (FEM) representations of the milling process on the prediction of chip morphology and residual stresses (RS), when down-milling small uncut chips with thickness...

...Nejah Tounsi; Tahany El-Wardany In Part II of these two-part papers, the effects of four finite element method (FEM) representations of the milling process on the prediction of chip morphology and residual stresses (RS) are investigated. Part II focuses on the milling of conventional uncut chip...

... was proposed based on microstructure, microhardness, and residual stresses of CD stud welded joint. The results show that a narrow weld seam with a widmanstaten structure is formed because of quick cooling. For the longer stud extension length, the width of the weld zone becomes wider and the microstructure...

... 11 02 2020 28 07 2020 28 07 2020 29 09 2020 welding manufacturing numerical model weld pool transport phenomena microstructure distortion residual stress process sensor machine learning deep learning CNN adaptive control model predictive control MPC control...

...Chaitanya Vundru; Ramesh Singh; Wenyi Yan; Shyamprasad Karagadde Direct laser metal deposition (DLMD) is a promising additive manufacturing technique which has a huge potential in remanufacturing and restoration of high-value dies/molds and aerospace components. The residual stresses developed...

...Yang Hua; Zhanqiang Liu; Bing Wang; Jiaming Jiang Low plasticity burnishing (LPB) has been extensively employed in aero-industry to enhance fatigue performance of machined components by introducing compressive residual stress. Effects of various parameters on the residual stress field induced...

... is typically a hard and brittle material. Therefore, it is necessary to detect and remove SSD in the subsequent processes. In this study, a polarized laser scattering (PLS) system is installed to detect the SSD in a ground wafer. It is found that not only the subsurface crack but also the residual stress leads...

... 10 2018 thermoset matrix composite process modeling residual stress orthotropic composite systems integrated flow-stress model The high production cost and substantial risk involved in manufacturing structural components made of fiber-reinforced polymeric composite materials...

... – 219 . 10.1016/j.jmatprotec.2007.03.087 [27] Moraitis , G. A. , and Labeas , G. N. , 2008 , “ Residual Stress and Distortion Calculation of Laser Beam Welding for Aluminum Lap Joints ,” J. Mater. Process. Technol. , 198 ( 1–3 ), pp. 260 – 269 . 10.1016/j.jmatprotec.2007.07.013...

... device design. injection molding design of experiment numerical analysis thermal deformation residual stress An injection molding process is one of the key manufacturing techniques to produce parts from polymeric materials. Material is fed into a heated barrel, mixed, and forced...

...A. M. Kamara; S. Marimuthu; L. Li This paper reports an investigation into the residual stress generated with the laser direct metal deposition (LDMD) process and particularly that which arises from the deposition of a multiple-layer wall of Waspaloy on an Inconel 718 substrate. These Ni-based...

... microscope. The residual stress developed in the cutting section is determined using the X-ray diffraction technique. It is found that high residual stresses are formed in the cutting section, and predictions agree well with the experimental results. The laser cut edges are found to be free from the large...

...A. W. Warren; Y. B. Guo Hard turning and grinding are precision processes in many cases for manufacturing various mechanical products. Product performance is highly dependent on the process induced residual stress. However, the basic differences in residual stress profiles generated by hard turning...