Role of ball size in backward ball spinning of thin-walled tubular part with longitudinal inner ribs

Jiang, Shuyong; Ren, Zhengyi; Li, Chunfeng; Ke-min, Xue

doi:10.1016/j.jmatprotec.2008.05.006

Cited by 31 publications

(11 citation statements)

References 15 publications

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“…Ma et al investigated power spinning processes of conical parts with transverse inner rib under different processing parameters [11]. Jiang et al applied backward ball spinning to manufacture thin-walled tubular parts with inner longitudinal ribs [12]. Kawai et al conducted experiments to survey the boss forming process.…”

Section: Introductionmentioning

confidence: 99%

A sheet blank rotary forging process for disk-like parts with thickened rims

Jin

Wang

2016

J Mech Sci Technol

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Disk-like parts with both thin web plates and thick rims are widely applied in automotive and aviation industries. These parts are usually made via welding and machining, which often lead to low material utilization, high energy consumption and low product performance. Therefore, a new sheet blank rotary forging process for thickening the rims of disc-like sheet blanks with uniform thicknesses was proposed in this paper. Based on FEA and experiments, both the effects of main defects and process parameters on forming were investigated. Besides, by considering the flow line distribution in formed parts, the material deformation feature in the forming process was analyzed. The results showed that the deformation process can be divided into four stages, and there are mainly four kinds of defects occurring during forming. Materials in the outer side of rim flows not only in the radial direction but also in the tangential direction.

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Section: Introductionmentioning

confidence: 99%

A sheet blank rotary forging process for disk-like parts with thickened rims

Jin

Wang

2016

J Mech Sci Technol

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“…The wall thickness reduction was 0.6 mm. The number of the balls can be determined as seven according to the reference [17].…”

Section: Spinning Parametersmentioning

confidence: 99%

Investigation of interface compatibility during ball spinning of composite tube of copper and aluminum

Jiang

Zhang

Zhao

et al. 2016

Int J Adv Manuf Technol

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“…Jiang et al investigated the spinning process of thin-walled tubular part with longitudinal inner ribs. In their researches, multi-pass spinning and ball-shape roller were adopted, and the investigation results indicated that increasing the size of the ball contributed greatly to the stable flow of the metal as well as the formability of the inner ribs, but too large a ball led to the poor surface finish of the spun part; multipass spinning can guarantee the formability of the inner ribs [12,13]. Shimizu obtained the elliptical coneshaped products through synchronous spinning, but in his research, a mandrel with accordant shape was required [14].…”

Section: Introductionmentioning

confidence: 99%

Effects of processing parameters on the surface quality of square section die-less spinning

Zhang

Han

et al. 2015

Int J Adv Manuf Technol

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In view of the importance of the surface quality in the application to the square section die-less spinning, the effects of several key parameters which include roller path, half-cone angle, and roller nose radius on the surface quality are investigated. Through the geometric model of residual height, the effect law of the roller path is obtained: the surface quality increases with the decrease of the axial distance of two adjacent slices. Then the finite element model of the square section die-less spinning is established, and the normal force and axial strain states in the deforming process are adopted to predict the relationship between the surface quality and the half-cone angle. Combined with the residual height model and finite element analysis, the roller nose radius' effect on the surface quality is also obtained. Enlargement of the two parameters can improve the surface quality. All the analysis results are verified by the surface waviness test of the specimens from the workpiece after spinning.

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Role of ball size in backward ball spinning of thin-walled tubular part with longitudinal inner ribs

Cited by 31 publications

References 15 publications

A sheet blank rotary forging process for disk-like parts with thickened rims

A sheet blank rotary forging process for disk-like parts with thickened rims

Investigation of interface compatibility during ball spinning of composite tube of copper and aluminum

Effects of processing parameters on the surface quality of square section die-less spinning

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