A study on the automated process planning system for cold forging of non-axisymmetric parts using FVM simulation

Lee, B.K; Kwon, Hyuk-Hong; Cho, H.Y

doi:10.1016/s0924-0136(02)00799-9

Cited by 9 publications

(5 citation statements)

References 2 publications

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“…However, the simulation time using FVM was less than half the time consumed by the other package in performing identical simulation using the same computer (Mehta et al, 2001). Cold forging of non-axisymmetric parts (Lee et al, 2002b) and forging process of a complex part (Sedighi and Tokmechi, 2003) were simulated by using FVM. Extrusion process of an aluminum rectangular hollow pipe was simulated using finite volume method and the optimal die design was determined (Xianghong et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

A new approach to preform design in forging process of complex parts

Sedighi

Tokmechi

2008

Journal of Materials Processing Technology

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Section: Introductionmentioning

confidence: 99%

A new approach to preform design in forging process of complex parts

Sedighi

Tokmechi

2008

Journal of Materials Processing Technology

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“…In recent years, finite element (FE) numerical simulation has become one main and valid method of analysing forging processes owing to the recent advancements in software development and availability of more powerful computers. In addition, since the FEM can simultaneously predict all the necessary stress-strain states in both the die and workpiece, extensive applications have been reported for the large-scale deformation forging processes (Kwan 2002, Lee, Kwon et al 2002, Koc and Arslan 2003. However, up to now, works on the process planning of cold forging have been mainly concentrated on the rotationally symmetric parts.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis and design of pinion with inner helical gear by FEM

Kang¹,

Kim²,

Kang³

2007

Virtual and Physical Prototyping

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In the design of the cold forging process one of the most important tasks is the determination of the required number of processes. Preforming in incremental steps is aimed at achieving high accuracy of the forged part, high quality of the surfaces and also decreasing the die damage during the forging process. Cold forging of pinion gear with shape of outer spur gear and inner helical gear have been investigated in this study. A numerical analysis for preform design substituting a cutting process in the gear forging was developed by means of upsetting process. By using the finite element (FE) program DEFORM-3D, the analysis is carried out. Using this simulation, the preform of the pinion and helical gear forging process was designed. The suggested valuable information regarding the forging process shows a successful attempt. The suggested process is verified by experiment. Compared to the traditional computer numerical control (CNC) processing, the upsetting process can form a preform without cutting, which leads to shorter forming time and reduced material usage.

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“…In addition, since the FEM can simultaneously predict all the necessary stress-strain states in both die and workpiece, extensive applications of this method have been reported for the large-scale deformation forging processes [1][2][3][4][5][6]. Especially, many researchers focused on the effective strain, damage and flow patterns within the workpiece during cold forging processes.…”

Section: Introductionmentioning

confidence: 99%

“…Works on non-axisymmetric parts was not so actively going on, due to difficulties of shape cognition and expression, calculations of the process variables such as forming load, effective strain, effective stress and so on. As for the study about this fields, Koç and Arslan [1] have studied about large and nonaxisymmetric precision forming tooling as in hydroforming and precision forging of connecting rod and Lee et al [2] proposed a process planning system for cold forging of nonaxisymmetric parts of comparatively simple shape. Kwan [3] has developed UBET program to analyze the closed-die forging of a general non-axisymmetric shape.…”

Section: Introductionmentioning

confidence: 99%