A numerical and experimental analysis of noncircular blank spinning

Keneshlou, Mehrdad; Biglari, F. R.; Shafaie, Majid

doi:10.1016/j.jmapro.2023.03.045

Cited by 5 publications

(2 citation statements)

References 58 publications

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“…Hamid R et al [16] conducted spinning tests on cylindrical parts to investigate the effects of different thinning rates on the surface forming quality of the workpiece, as well as the microstructure and mechanical properties of the material. M. Keneshlou et al [17] conducted a combined numerical simulation and experimental study on the spinning process of non-circular workpieces to unveil the rebound and strain distribution of deformed parts. The findings indicated that the shell unit is more effective for rebound prediction, whereas the solid unit excels in strain prediction.…”

Section: Introductionmentioning

confidence: 99%

On optimization of Spin-Forming Process Parameters for Magnesium Alloy Wheel Hub Based on Gray Relational Analysis

Zhang,

Lan,

Ding

et al. 2024

Materials

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To study the influencing factors of process parameters on the wall thickness deviation and internal warpage deviation of the workpiece in magnesium alloy wheel hub spin molding, a two-pass heterogeneous spin molding model is proposed. To ensure the accuracy of the simulation results, the stress–strain data of AZ31 magnesium alloy at different temperatures and different strain rates were obtained through tests. Wall thickness deviation and internal warp deviation after molding were used as evaluation indexes of workpiece molding quality. ABAQUS software facilitated the numerical simulation and analysis of the magnesium alloy wheel hub spinning process. Gray relational degree analysis optimized the first-pass process parameters, elucidating the impact of the axial offset, the thinning ratio, and the feed ratio on forming quality. The application of optimized parameters in the hub spinning simulation resulted in a substantial 28.84% reduction in wall thickness deviation and a 4.88% reduction in inner diameter deviation. This study underscores the efficacy of employing Gray Relational Analysis for comprehensive parameter optimization, ensuring wheel hub quality. Moreover, it provides a theoretical foundation for enterprises to expedite research and development cycles and minimize associated costs.

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Section: Introductionmentioning

confidence: 99%

On optimization of Spin-Forming Process Parameters for Magnesium Alloy Wheel Hub Based on Gray Relational Analysis

Zhang,

Lan,

Ding

et al. 2024

Materials

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“…The spinning of domes can be performed using either molded spinning or mandrelfree spinning. As shown in Figure 1, molded spinning involves clamping the workpiece on a core mold with the tail at the top, rotating it together with the machine tool spindle, and pressing the roller onto the material to produce plastic flow, and the curved domes are finally formed with the movement of the roller feed [14][15][16]. When using molded spinning for the processing of the domes of a rocket fuel tank-which is a large, thinwalled dome part with a high diameter-thickness ratio and weak rigidity-equal thickness, uncoordinated deformation always occurs during the core molded spinning.…”

Section: Introductionmentioning

confidence: 99%

A Two-Step Marginal-Restraint Mandrel-Free Spinning Method for Accuracy in Forming Large, Special-Shaped Aluminum Alloy Tank Domes

Zhu

Huang

et al. 2023

Metals

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The special-shaped tank dome of a launch vehicle is a large, thin-walled, curved structure that is difficult to form using the conventional center-restraint spinning method. This study proposes a two-step marginal-restraint mandrel-free spinning method for forming large domes. The finite element analysis results indicate that a larger roller fillet radius and larger feed ratios lead to a larger upper convex angle and the minimum thickness value for the bottom contour. This study explored the impact of shape parameter variations on the upper convexity and transition rounding angle on forming accuracy. The results show that the convexity of the bottom of the special-shaped domes increases with a larger roller fillet radius and larger feed ratios while the overall height decreases. The forming accuracy is adversely affected by larger transition rounding angles and smaller upper convexities. For the accurate forming of domes, the mutual coupling influence during two-step forming should be considered, and a suitable process and suitable trajectory compensation parameters must be carefully selected. Finally, the study verified that a two-step marginal-restraint mandrel-free spinning method with a 10 mm roller fillet radius, a 2 mm/r feed ratio, and the corresponding trajectory compensation can achieve the precise forming of 2250 mm thin-walled special-shaped domes.

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Computer Aided Engineering in the application of rotational forming of axially asymmetric geometries

Marcin,

Tomasz,

Leszek

et al. 2024

Journal of Manufacturing Processes

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A numerical and experimental analysis of noncircular blank spinning

Cited by 5 publications

References 58 publications

On optimization of Spin-Forming Process Parameters for Magnesium Alloy Wheel Hub Based on Gray Relational Analysis

On optimization of Spin-Forming Process Parameters for Magnesium Alloy Wheel Hub Based on Gray Relational Analysis

A Two-Step Marginal-Restraint Mandrel-Free Spinning Method for Accuracy in Forming Large, Special-Shaped Aluminum Alloy Tank Domes

Computer Aided Engineering in the application of rotational forming of axially asymmetric geometries

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