Some aspects of energy distribution in rotary forming processes

Canta, Traian; Frunză, Dan; Sabadus, D; Tintelecan, C

doi:10.1016/s0924-0136(98)00210-6

Cited by 39 publications

(19 citation statements)

References 2 publications

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“…When the point is located in the axis of the upper tool, the first type of kinetic locus can be obtained from Eq. (6). When the point is located in the working surface of the upper tool, the second type of kinetic locus can be also obtained from Eq.…”

Section: Resultsmentioning

confidence: 99%

“…Due to its advantages, many scholars have conducted researches on contact mechanisms [1][2][3], consumed energies [4][5][6] and deformation behaviours of billets [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] in cold orbital forging. In terms of kinetic locus of the upper tool, Hu and Che [24] analyzed the kinetic locus of the upper tool in PXW cold orbital forging machine.…”

Section: Introductionmentioning

confidence: 99%

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Calculation of kinetic locus of upper tool in cold orbital forging machine with two eccentricity rings

2015

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In cold orbital forging machine with two eccentricity rings, the kinetic locus of the upper tool includes two types. The first one is the kinetic locus of one point in the axis of the upper tool, which is produced by the motion of the two eccentricity rings. The second one is the kinetic locus of one point in the working surface of the upper tool, which is produced by the first type of kinetic locus. Both types of kinetic locus of the upper tool is critical to cold orbital forging. The first one has great influences on the deformation of cold orbital forged components and the second one can be used to make the intervention examination between the upper tool and components. So this paper aims at obtaining the kinetic locus of the upper tool in cold orbital forging machine with two eccentricity rings so as to better design and check the cold orbital forging tools. Firstly, a model of analyzing the kinetic locus of the upper tool is developed. Then, the general equations of the kinetic locus of the upper tool, which can describe the kinetic locus of the arbitrary point in the upper tool under all kinds of geometric and kinematic relations between the two eccentricity rings in cold orbital forging machine, are achieved. Finally, the characteristics and applications of the kinetic locus of the upper tool are discussed based on these equations. This study has great significances for adjusting the two eccentricity rings of the machine to control the motion of the upper tool and designing and checking the cold orbital forging tools.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Calculation of kinetic locus of upper tool in cold orbital forging machine with two eccentricity rings

2015

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“…One of the main aims of these studies is to find a method of detection of pressure distribution on contact surface during individual deformations (Zhang, 1984). Individual approaches consider various assumptions related to the parameter of applied energy (Choi et al, 1997 andCanta et al, 1998) or to the course of metal flow (Standring et al, 1980) or (Wang et al, 2005).…”

Section: Swagingmentioning

confidence: 99%

The Methods of Preparation of Ti-Ni-X Alloys and Their Forming

Kocich¹,

Szurman²,

Kursa³

2013

Shape Memory Alloys - Processing, Characterization and Applications

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“…At present, many studies have been done on the cold rotary forging process due to its significant advantages. In brief, these studies mainly focused on measuring the pressure distribution at the contact area [2], calculating and verifying the power parameters [3][4][5][6], and analyzing the metal flow [7][8][9][10] by using analytical and experimental methods. Meanwhile, the cold rotary forging process was analyzed by the rigidplastic FE method [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Comparison between cold rotary forging and conventional forging

Han

Hua

2009

J Mech Sci Technol

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Cold rotary forging is an innovative incremental metal forming process, which is obviously different from the conventional forging process in many aspects, such as the metal flow, degree of inhomogeneous deformation of workpiece and force and power parameters. In the current work, a 3D elastic-plastic dynamic explicit FE model of cold rotary forging of a cylindrical workpiece is developed under the ABAQUS software environment and its validity has been verified by the experiment. Based on the reliable 3D FE model, the cold rotary forging and conventional forging process are simulated and their difference in the forming process has been thoroughly clarified. The research results may help to understand the cold rotary forging process better. Furthermore, they provide valuable guidelines for further theoretical analysis and experimental studies on the cold rotary forging process.

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Some aspects of energy distribution in rotary forming processes

Cited by 39 publications

References 2 publications

Calculation of kinetic locus of upper tool in cold orbital forging machine with two eccentricity rings

Calculation of kinetic locus of upper tool in cold orbital forging machine with two eccentricity rings

The Methods of Preparation of Ti-Ni-X Alloys and Their Forming

Comparison between cold rotary forging and conventional forging

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