The Application of Finite Element Method for Analysis of Cross-Wedge Rolling Processes—A Review

Pater, Z.

doi:10.3390/ma16134518

Cited by 2 publications

(1 citation statement)

References 110 publications

(125 reference statements)

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“…The cross-wedge rolling (CWR) process is a new forging method for metal materials with a near-net-shape for the production of shaft parts, such as screw rotors, steeped axes and shafts [27][28][29][30][31]. Figure 4 shows in detail how the CWR process is achieved [32].…”

Section: Solid Plastic Forming Processmentioning

confidence: 99%

Research Progress on the Manufacturing of Screw-Shaped Parts in Screw Compressors

Wang,

Xiong,

Feng

et al. 2024

Applied Sciences

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Screw compressors are highly researched and developed prospects in industry because of their long service life, high transmission efficiency, low footprint and low vibration. As the key core part of the screw compressor, the screw is a typical, long-shaft, complex profile part. Its processing method, manufacturing accuracy and quality have an extremely important impact on the performance of the whole screw compressor. In this work, the research progress on the manufacturing of screw-shaped parts in screw compressors is summarised from the aspects of the cutting process, solid plastic forming, casting and additive manufacturing. The merits and demerits of these manufacturing processes are provided and discussed, which is conducive to the development of the high-efficiency, precise and high-performance forming process of screw-shaped parts. Additionally, a novel forming process is proposed to solve the problems of serious material waste and low production efficiency for the screw-shaped parts. In the proposed process, the semi-solid spherical grain is firstly prepared by radial forging and the isothermal treatment of long-shaft raw materials. The large strain energy can be stored in the bar by the radial forging of long-shaft raw materials, which is used to induce the generation of semi-solid spherical grains with the assistance of the isothermal procedure. After that, the screw is fabricated by the high-efficiency semi-solid closed extrusion process.

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Section: Solid Plastic Forming Processmentioning

confidence: 99%

Research Progress on the Manufacturing of Screw-Shaped Parts in Screw Compressors

Wang,

Xiong,

Feng

et al. 2024

Applied Sciences

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Influence of die parameters on the deformation characteristics of cross wedge rolling steel balls: modelling, numerical simulation and experiments

Wang,

Liu

et al. 2024

Preprint

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How to choose appropriate tool parameters has always been a challenge in the cross wedge rolling (CWR) process, as different tool parameters affects the instantaneous metal deformation pattern and effective strain, thereby affecting the geometric dimensions and mechanical properties of the formed workpiece, especially for CWR steel balls with both radial and axial forming degrees of freedom. This paper proposed four novel forms of forming angle design for CWR dies and different sizes of spreading angles. The effect of different tool parameters on the deformation characteristics of CWR steel balls was analyzed using a combination of theoretical modelling and finite element (FE) simulation analysis. The analysis indicated that the axial deformation parameters increased linearly while the radial deformation parameters increasesd exponentially during the CWR process. The steel balls obtained from equal or small arc forming angles had better roundness and filling than those obtained from fixed forming angle and large arc forming angle. When the forming angle is fixed, the larger the spreading angle, the more metal volume participates in deformation per unit time, and the more severe the deformation. Finally, tool parameters with a fixed forming angle of 30° and an equal arc forming angle, as well as a spreading angle of 8°, were selected for comparative experiments on steel balls forming. The experimental results indicated that the size accuracy of steel balls obtained by equal arc forming angle was relatively high, and a larger spreading angle could improve forming efficiency significantly, which verified the reliability of FE simulation simultaneously.

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The Application of Finite Element Method for Analysis of Cross-Wedge Rolling Processes—A Review

Cited by 2 publications

References 110 publications

Research Progress on the Manufacturing of Screw-Shaped Parts in Screw Compressors

Research Progress on the Manufacturing of Screw-Shaped Parts in Screw Compressors

Influence of die parameters on the deformation characteristics of cross wedge rolling steel balls: modelling, numerical simulation and experiments

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