Experimental investigation of residual stresses in a DIECASTED aluminium flywheel

Kumar, Yalagandala Akshay; Shafee, Shaik; Praveen, Barmavatu

doi:10.1016/j.matpr.2019.07.628

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Destructive measurements: Layer removal (1-100 mm [7]); Sectioning (10-100 mm [7]). In literature, residual stresses in HPDC components were studied in [19] by a destructive way founding that the results of distortion are strongly affected by the ejection time: when the dies are closed, the part is constrained, and distortion restrained, conversely, after the ejection, the part is free to distort. Fracture behaviour in aluminum component caused by residual stresses seems to depend on the loading conditions (elastic or plastic): in [20] was deduced that residual stresses are small when the failure occurs in the fully plastic loading regime.…”

Section: Introductionmentioning

confidence: 99%

About Residual Stress State of Castings: The Case of HPDC Parts and Possible Advantages through Semi-Solid Processes

Fracchia¹,

Gobber

Mus³

et al. 2022

SSP

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Nowadays, one of the most crucial focus in the aluminium-foundry sector is the production of high-quality castings. Mainly, High-Pressure Die Casting (HPDC) is broadly adopted, since by this process is possible to realize aluminium castings with thin walls and high specific mechanical properties. On the other hand, this casting process may cause tensile states into the castings, namely residual stresses. Residual stresses may strongly affect the life of the product causing premature failure of the casting. Various methods can assess these tensile states, but the non-destructive X-Ray method is the most commonly adopted. Namely, in this work, the residual stress analysis has been performed through Sinto-Pulstec μ-X360s. Detailed measurements have been done on powertrain components realized in aluminium alloy EN AC 46000 through HPDC processes to understand and prevent dangerous residual stress state into the aluminium castings. Furthermore, a comparison with stresses induced by Rheocasting processes is underway. In fact, it is well known that Semi-Solid metal forming combines the advantages of casting and forging, solving safety and environmental problems and possibly even the residual stress state can be positively affected.

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Section: Introductionmentioning

confidence: 99%

About Residual Stress State of Castings: The Case of HPDC Parts and Possible Advantages through Semi-Solid Processes

Fracchia¹,

Gobber

Mus³

et al. 2022

SSP

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Evaluation and Intelligent Modelling for Predicting the Amplitude of Footing Resting on Geocell-Based Weak Sand Bed Under Vibratory Load

Jeyanthi,

Venkatakrishnaiah,

Raju

2024

Cross-Industry AI Applications

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The main consideration while designing geo-structures to sustain vibration loads is the accuracy of the displacement amplitude estimation. The displacement amplitude of a footing on a geocell-reinforced bed exposed to vibration stress can be computed using sophisticated data. AI modelling has replaced many traditional methodologies. Thus, the current work introduces a hybrid paradigm called NFC-TSA, which stands for neuro-fuzzy controller and tunicate swarm algorithm. Comprehensive field vibration experiments provided the reliable database utilised to train and evaluate the model. To develop the model's precise prediction objective, displacement amplitude was used as an output index. Several parameters impacting the foundation bed, geocell reinforcement, and dynamic excitation were considered as input variables. Existing methods, ANN-EHO, JSA, MOA, RNN, and ANN-MGSA, were compared to the NFC-anticipated TSA's accuracy.

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Experimental investigation of residual stresses in a DIECASTED aluminium flywheel

Cited by 2 publications

References 2 publications

About Residual Stress State of Castings: The Case of HPDC Parts and Possible Advantages through Semi-Solid Processes

About Residual Stress State of Castings: The Case of HPDC Parts and Possible Advantages through Semi-Solid Processes

Evaluation and Intelligent Modelling for Predicting the Amplitude of Footing Resting on Geocell-Based Weak Sand Bed Under Vibratory Load

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