Relations between numerical simulation and experiment in closed die forging of a gear

Škunca, Marko; Skakun, Plavka; Keran, Zdenka; Šidjanin, Leposava; Math, Miljenko

doi:10.1016/j.jmatprotec.2006.04.061

Cited by 16 publications

(8 citation statements)

References 16 publications

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“…The forming laws of gears precision forging, especially bevel gears, have been investigated because of the complicated geometry of gear, many influencing factors and plastic deformation laws. It is very important to research the precision forging process of bevel gear considering the conditions of our industry improvement [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Process Design for Cold Precision Forging of Bevel Gear

Zhang

Cui

Wang

2010

2010 International Conference on Digital Manufacturing &Amp; Automation

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Precision forging is defined as a near net-shape forging operation which generates high quality parts concerning surface quality and dimensional accuracy. In particular gears offer a wide application field for the precision forging technology. Advantages like shortened production cycles achieved by eliminating machining operations and the saving of raw material contribute to the ongoing cost-saving trend in the industry. This article describes the adopted methods and the precision forging process of the bevel gear. 3D FEM model of the precision forging process of bevel gear was established. The forming laws, material plastic behavior, changed geometries and the qualities of the gears are explored by finite element simulation. Completely filled gear teeth were obtained using a lower forging load by the designed process which is the effective forging process for manufacturing of bevel gear. The design process for bevel gear has to be purpose-built to consider the distinctions of this precision forging technique.

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Section: Introductionmentioning

confidence: 99%

Process Design for Cold Precision Forging of Bevel Gear

Zhang

Cui

Wang

2010

2010 International Conference on Digital Manufacturing &Amp; Automation

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“…Simulation of the stretching forging process of a 42CrMo4 steel has been performed by an FE model developed using the commercial code MSC.Marc. Such code is well known for being characterized by a high accuracy tool for closed and open die forging process simulation [33][34][35]. The strokes start in the central part of the piece and proceed until the 4 th stroke as shown in Figure 1.…”

Section: Fem Model For Open-die Forging Of 42crmo4 Steel Gradementioning

confidence: 99%

Optimization of Open Die Ironing Process through Artificial Neural Network for Rapid Process Simulation

Mancini

Langellotto

Zangari

et al. 2020

Metals

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The open die forging sequence design and optimization are usually performed by simulating many different configurations corresponding to different forging strategies. Finite element analysis (FEM) is a tool able to simulate the open die forging process. However, FEM is relatively slow and therefore it is not suitable for the rapid design of online forging processes. A new approach is proposed in this work in order to describe the plastic strain at the core of the piece. FEM takes into account the plastic deformation at the core of the forged pieces. At the first stage, a thermomechanical FEM model was implemented in the MSC.Marc commercial code in order to simulate the open die forging process. Starting from the results obtained through FEM simulations, a set of equations describing the plastic strain at the core of the piece have been identified depending on forging parameters (such as length of the contact surface between tools and ingot, tool’s connection radius, and reduction of the piece height after the forging pass). An Artificial Neural Network (ANN) was trained and tested in order to correlate the equation coefficients with the forging to obtain the behavior of plastic strain at the core of the piece.

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“…Some scholars have analyzed the upsetting process of rectangular blocks by forging three-dimensional forming finite element analysis (FEA), such as gears, engine blade forging. 7–10 With the continuous emergence of commercial finite element simulation software, plastic forming finite element numerical simulation technology has been widely used in the forging industry.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation and experimental research on hot extrusion of 5B70 aluminum alloy complex end frame part

Liu¹,

Zhang

Li³

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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5B70 aluminium alloy is strengthened by Sc and Zr. It has higher strength and plasticity than common aluminum alloy. Meanwhile, 5B70 aluminum alloy which is widely used as a structural material also presents some advantages, such as corrosion resistance, excellent formability, and weldability. In this study, the high-temperature deformation behavior of 5B70 aluminum alloy and the hot extrusion process of the complex end frame part were studied, and the deformation property of 5B70 aluminum alloy at elevated temperature was analyzed by the high-temperature compression test. The numerical simulation of hot extrusion of complex end frame part was carried out. Moreover, the optimal hot extrusion parameters of 5B70 aluminum alloy were obtained, and the hot extrusion property and microstructure evolution of 5B70 aluminum alloy were investigated.

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Relations between numerical simulation and experiment in closed die forging of a gear

Cited by 16 publications

References 16 publications

Process Design for Cold Precision Forging of Bevel Gear

Process Design for Cold Precision Forging of Bevel Gear

Optimization of Open Die Ironing Process through Artificial Neural Network for Rapid Process Simulation

Numerical simulation and experimental research on hot extrusion of 5B70 aluminum alloy complex end frame part

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