Diagnosis of involutometric issues in flat rolling of external helical gears through the use of finite-element models

Kamouneh, Amir Ali; Ni, Jun; Stephenson, David A.; Vriesen, Richard; DeGrace, Garrold

doi:10.1016/j.ijmachtools.2006.08.015

Cited by 44 publications

(18 citation statements)

References 2 publications

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“…17,18 Zhai et al 12 explored the mechanical and tribological behaviors of a Ni 3 Al-multilayer graphene composite. Their results indicated that multilayer graphene enhanced the mechanical properties of a Ni 3 Al-based composite. The observed small friction coefficient and low wear rate were mainly attributed to the intralamellar separation of multilayer graphene.…”

Section: Introductionmentioning

confidence: 99%

“…With the heavy-duty and high-speed development of automobiles, a gear system is an indispensable element for the momentum transmission of machine components. [1][2][3][4] 20CrMnTi steel is regarded as an excellent material for manufacturing gear systems. [5][6][7][8][9] However, under some extreme conditions, such as high temperature and high vacuum, oil and grease are not sufficient to provide optimal lubrication for a 20CrMnTi-based-gear system, which is an obstacle to increasing service life and operational reliability of such a system.…”

Section: Introductionmentioning

confidence: 99%

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Coordinating influence of multilayer graphene and spherical SnAgCu for improving tribological properties of a 20CrMnTi material

2018

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Coordinating influence of multilayer graphene and spherical SnAgCu for improving tribological properties of a 20CrMnTi material

2018

RSC Adv.

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“…14 Kamouneh et al 15 investigated the work hardening effect of flat rolling on the critical regions of gear through the use of hardness maps, grain-flow photographs, and finite element models developed in ABAQUS and DEFORM. Also, using numerical simulations, they have optimized the shape and the size of the workpiece, 16 to reduce the negative effects such as the ''rabbit ear'' phenomenon. Song et al 17 used numerical simulations to study the influence of process parameters on small threads obtained by rolling.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of the radial cold rolling process of the grooves

Niţu

Iordache

Bădulescu

2021

Proceedings of the Institution of Mechanical Engineers, Part B:

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The radial cold rolling process is widely used in industry due to the advantages of chip removing processing. In this study, circular complex profiles were formed by cold-rolling with radial feed, using a patented device with two roller-tools. By achieving several numerical simulations of the radial rolling process, the study aimed to establish the influence that the maximum set force and the diameter of the workpiece have on the productivity of the process and the quality of the formed trapezoidal and metric grooves. The numerical simulations were performed with ABAQUS/Explicit software and by using a previously validated finite element model. The penetration curve of the roller-tools in the material was introduced in the simulation as an analytical function and was determined based on experimental researches. To express the dependency of the penetration curve coefficients on other rolling conditions, a multivariable analysis using a design of experiments technique was performed. The parameters that result from numerical simulations and were analyzed in this study are the profile forming time, the maximum radial force, the distribution of the equivalent strains in the axial section of the profiles, and the profile dimensions. The conclusions that were drawn from the analysis of the results regarding the influence of the set maximum force and the workpiece diameter on the analyzed parameters of the numerical simulations, together with the definition of efficient process criteria, allowed also the identification of the optimal conditions of the rolling process.

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“…1–5 Rolling is a common method of thread processing which produces near-net-shaped parts. 6–9 Ivanov 10 carried out a systematic analysis of three rollers rolling threads. Gagg and Luo 11,12 studied the failure of rolling die.…”

Section: Introductionmentioning

confidence: 99%

Effect of rolling parameters on forming quality of flat cross wedge rolling thread shafts

Shao

Peng

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part E:

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The flat cross wedge rolling is an advanced forming process, which is used to produce thread shafts. In this work, a finite element model of flat cross wedge rolling thread shafts was established by the DEFORM-3D, and the effect of the forming angle, spreading angle, helix angle and flank angle on forming quality are investigated. The research results show that the forming angle, spreading angle, helix angle have a significant influence on the position of the die wedge-in point. The angle designed wrongly makes the die wedge-in point unable to be aligned correctly, causing defects such as slipping in the process, repeated rolling of formed thread, thin or incomplete tooth shapes. The flank angle mainly makes an impact on the axial force. Reducing the right flank angle or increasing the left flank angle can effectively improve the imbalance of axial force to obtain high-quality thread shafts. Through the experiment of flat cross wedge rolling thread shafts, the data comparison demonstrates that the error of the external dimension of formed parts is small, proving the reliability of the rolling parameter selection.

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Diagnosis of involutometric issues in flat rolling of external helical gears through the use of finite-element models

Cited by 44 publications

References 2 publications

Coordinating influence of multilayer graphene and spherical SnAgCu for improving tribological properties of a 20CrMnTi material

Coordinating influence of multilayer graphene and spherical SnAgCu for improving tribological properties of a 20CrMnTi material

Numerical investigation of the radial cold rolling process of the grooves

Effect of rolling parameters on forming quality of flat cross wedge rolling thread shafts

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