Finite element modeling of low speed reaming vibrations with reamer geometry modifications

Towfighian, Shahrzad; Behdinan, Kamran; Papini, M.; Saghir, Ziad; Zalzal, Paul; Beer, Justin de

doi:10.1007/s10845-007-0038-4

Cited by 9 publications

(5 citation statements)

References 6 publications

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“…The friction component F du of the cutting damping force is considered to be proportional to the normal component F dv , so it can be written as: (27) where µ is the Coulomb friction coefficient, which is taken as 0.3 according to literature [32]. Therefore, the radial and tangential components of the cutting damping force of the elementary cutting edge in the U-V-W coordinate system can be expressed as:…”

Section: Cutting Damping Forcementioning

confidence: 99%

“…It is assumed that the tap is a cantilever beam whose force is concentrated on the tip of the tool in this analysis. According to literature [27],the stiffness matrix can be written as:…”

Section: Elastic Forcementioning

confidence: 99%

“…among them, M, C, K are the mass matrix, damping matrix and stiffness matrix of the tap respectively, and they are all second-order matrices. Whitehead [26] and Towfighian [27] mentioned that the vibrations to cause roundness errors are divided into two categories: chatter and low frequency vibration. In tapping process, the speed of the tap is usually low, and the frequency is much lower than the lowest natural frequency of the tool.…”

Section: Introductionmentioning

confidence: 99%

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Mathematical Model for Tapping Simulation to Predict Radial Pitch Diameter Difference of threads

Ren

Yan

2021

Preprint

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As the most important component of parts, thread has a great influence on the mechanical properties and service performance of parts. In order to ensure the quality of the thread, the thread quality inspection standard involves 11 main thread characteristics, of which the surface roughness of the thread is the most studied, and the research on Radial Pitch Diameter Difference (RPDD) is still blank. In this paper, a quasi-static model of the tapping process is developed based on the roundness error mechanism of the hole, which includes cutting force and cutting damping force. Due to the regenerative nature of cutting, the force on each cutting edge depends on both the tool’s current position and previous position. According to the eigenvalues and eigenvectors of the discrete state-transition matrix, RPDD is finally determined, and the influence of the chamfer length and the spindle speed on RPDD is simulated by this model. The results demonstrate that the chamfer length and spindle speed will affect RPDD, and the RPDD is the smallest when the chamfer length is 2 threads and the spindle speed is 1400 rev/min. The development of this model not only provides a cheap and effective method for the study of RPDD, but also lays a foundation for further experimental research.

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Section: Cutting Damping Forcementioning

confidence: 99%

“…It is assumed that the tap is a cantilever beam whose force is concentrated on the tip of the tool in this analysis. According to literature [27],the stiffness matrix can be written as:…”

Section: Elastic Forcementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mathematical Model for Tapping Simulation to Predict Radial Pitch Diameter Difference of threads

Ren

Yan

2021

Preprint

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show abstract

“…This theoretical presumption was not validated. [5] Towfighian et al [6] observed the influence of low speed reaming on vibrations of reamer with modified geometry. Designed FEM predict vibrations.…”

Section: Literature Researchmentioning

confidence: 99%

“…They found out that irregular spacing of 6 cutting edged leads to perfect hole quality and the best combination of pitch angles also leads to the most stable condition. [6] Bezerra et al [7] investigated the influence of cutting parameters (depth of cut, cutting speed, feed rate, helix angle, number of blades, margin size and rake face) on real diameter, roundness, cylindricity and surface roughness during reaming aluminium-silicon alloy. They used reamer with brazed cutting edges from sintered carbide K10.…”

Section: Literature Researchmentioning

confidence: 99%

Influence of Selected Technological Factors on the Hole Quality During Reaming

Fulemová¹,

Kutlwašer²,

Gombár³

et al. 2017

DAAAM Proceedings

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Quality of reamed hole is influenced by many factors. Some of them have higher impact on accuracy and quality of reamed hole and the others have higher impact on tool life of a reamer. This article deals with influence of cutting speed, feed rate, reverse feed rate and eccentricity of the tool tip on cylindricity, surface roughness Ra and diameter of reamed hole. Design of experiment was carried out with CCD (Central Composite Design) with orthogonal blocking. As a tool was used cermet reamer with 6 brazed cutting edges. Results showed not only valuable data but also weaknesses of experiment preparation. The article also point out weaknesses and how to handle with them.

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Design and Analysis of Reaming Tool by Finite Element Modeling and Simulation

Kumar

2021

Lecture Notes in Mechanical Engineering

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Finite element modeling of low speed reaming vibrations with reamer geometry modifications

Cited by 9 publications

References 6 publications

Mathematical Model for Tapping Simulation to Predict Radial Pitch Diameter Difference of threads

Mathematical Model for Tapping Simulation to Predict Radial Pitch Diameter Difference of threads

Influence of Selected Technological Factors on the Hole Quality During Reaming

Design and Analysis of Reaming Tool by Finite Element Modeling and Simulation

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