Control of Wall Thickness Distribution by Oblique Shear Spinning Methods

Sekiguchi, Akio; Arai, Hirohiko

doi:10.9773/sosei.51.984

Cited by 4 publications

(5 citation statements)

References 2 publications

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“…In recent years, some other novel spinning processes are also emerged. Sekiguchi et al [46,47] tilted depending on the inclination angle  of the plane and the rotational angle of the spindle. By applying this method, it was predicted that the wall thickness distribution could be varied while retaining the same shape by altering the inclination angle of its flange plane during the process.…”

Section: Longitudinal Tooth Spinningmentioning

confidence: 99%

“…By applying this method, it was predicted that the wall thickness distribution could be varied while retaining the same shape by altering the inclination angle of its flange plane during the process. The final wall thickness of a conical part was determined by the half-angle, inclination angle and the original thickness of the blank in accordance to the sine law [47]. Therefore this spinning method can be classified as shear spinning.…”

Section: Longitudinal Tooth Spinningmentioning

confidence: 99%

See 1 more Smart Citation

A review of process advancement of novel metal spinning

Xia

Xiao

Long

et al. 2014

International Journal of Machine Tools and Manufacture

166

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Metal spinning technology has seen a rapid development in recent years. Novel spinning processes, such as non-axisymmetric spinning, non-circular cross-section spinning and tooth-shaped spinning, are being developed. This has challenged the limitation of traditional spinning technology being used for manufacturing axisymmetric, circular cross-section, and uniform wall-thickness parts. In this paper, the classification of the traditional spinning processes is proposed based on the material deformation characteristics, the relative position between roller and blank, mandrel spinning and mandrel-free spinning, and temperature of the blank during spinning. The advancement of recently developed novel spinning processes and corresponding tool design and equipment development are reviewed. The classification of the novel spinning processes is proposed based on the relative position between the rotating axes, the geometry of cross-section and the variation of wall-thickness of spun parts. The material deformation mechanism, processing failures and spun part defects of the aforementioned three groups of novel spinning processes are discussed by analyzing four representative spinning processes of industrial applications. Furthermore other novel spinning processes and their classification as reported in the literature are summarized.

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Section: Longitudinal Tooth Spinningmentioning

confidence: 99%

Section: Longitudinal Tooth Spinningmentioning

confidence: 99%

A review of process advancement of novel metal spinning

Xia

Xiao

Long

et al. 2014

International Journal of Machine Tools and Manufacture

166

View full text Add to dashboard Cite

show abstract

“…The axial distribution of the wall thickness of a product was pointed out to be adjustable in the conventional spinning of metal sheets and the flow forming of metal tubes by Wong et al [4]. However, it is difficult to adjust the circumferential distribution in metal spinning without using a blank of nonuniform thickness or milling after forming [5]. Yoshihara et al [6] controlled the wall thickness of an AZ31-O dome formed from a tube by hot conventional neck spinning through the roller path.…”

Section: Introductionmentioning

confidence: 99%

“…It can be found that from their experiment, the influence of the wall thickness deviation on the workpiece quality was great; it is necessary to control the wall thickness deviation within a certain range, and the wall thickness difference and the section ellipticity were small with the negative deviation rate at 3%. Sekiguchi et al 2012 [5] attempted a flexible method to control the forming circumferentially variant wall thickness distributions on the same shape by using two oblique sheet spinning processes. The wall thickness around circumferential direction was uneven and difficult to control for novel asymmetric and non-circular cross-sectional spinning [14,15].…”

Section: Introductionmentioning

confidence: 99%

Mechanics of double-sheet die-less shear spinning: a novel potential method for wall thickness control in spinning process

Zhang

Han

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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Die-less spinning has high flexibility in aeronautics, aerospace vehicles and other manufacturing fields; however, the wall thickness of the workpiece is hard to control in die-less shear spinning. A flexible control method of wall thickness distributions on the truncated cone shape is attempted using double-sheet shear spinning. The fundamental approach entails the adjustment of original thickness during forming. In double-sheet die-less shear spinning, two aluminum disk blanks arranged concentrically are formed for truncated cone. The cover thicknesses of the spun workpieces are smaller than the value that conforms to the sine law using the same blank thickness. The wall thicknesses of base spun workpieces are bigger than the sine law value under the same circumstances. The theoretical mechanics analysis of the double-sheet shear spinning process is carried out through mechanics and finite element analysis.

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“…The spinning of "Tripode" and "Pagoda" shape workpiece were simulated by Awiszus and Härtel, then experiments were carried out to verify the simulation results [16]. Sekiguchi and Arai investigated the oblique shear spinning and tried to control the wall thickness distribution after spinning [17]. Zhang et al developed an accurate and effective three-dimensional (3D) FE model to improve the forming qualities of the large ellipsoidal heads formed by power spinning [18].…”

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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Control of Wall Thickness Distribution by Oblique Shear Spinning Methods

Cited by 4 publications

References 2 publications

A review of process advancement of novel metal spinning

A review of process advancement of novel metal spinning

Mechanics of double-sheet die-less shear spinning: a novel potential method for wall thickness control in spinning process

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

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