Study on the stability for non-uniform helix angle tools in the milling process

Guo, Qiang; Zhang, Mingyang; Lee, Yuan‐Shin; Yang, Zhibo; Jiang, Yan; Feng, Cong-Hui

doi:10.1080/21681015.2020.1802621

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…To improve milling stability and suppress chatter, optimizing cutting parameters or using variable pitch cutter are usually adopted. The variable pitch cutter breaks the conditions for chatter generation in milling, but the stability of the cutter itself [12,13] needs further study. Milling stability can be improved by increasing helix angle [14].…”

Section: Introductionmentioning

confidence: 99%

Research on design and cutting performance of gradient helix edge end mill

Ding,

Liu,

Yue

et al. 2023

Int J Adv Manuf Technol

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There are inequable force-induced deformation, obvious cutting vibration problems during side milling of low-rigidity frame and beam parts, resulting in unsatisfactory dimensional accuracy and surface quality. Most of these parts are side-milled by end mill, which currently in use do not take into account the workpiece stiffness imparity. Therefore, the concept of Gradient Helix Edge (GHE) is proposed in this research and its advantages are analyzed. The general mathematical model is given. And the parabola is taken as an example for the GHE space equation derived, of which accuracy is veri ed by numerical simulation. Finally, The comparison experiment with the invariant helix edge end mill was completed. The results showed that the milling force perpendicular to the milling surface of the GHE end mill was smaller and less uctuation, which could obtain less force-induced deformation theoretically. The milling process was smoother, and better surface quality was obtained. The excellent performance of the GHE end mill was further veri ed by milling different features.

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Section: Introductionmentioning

confidence: 99%

Research on design and cutting performance of gradient helix edge end mill

Ding,

Liu,

Yue

et al. 2023

Int J Adv Manuf Technol

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show abstract

“…Consequently, cutters with irregular pitch and helix angles are more and more common in various milling operations. 22 Scholars have made some achievements in the design and research of irregular tooth end milling cutters, which also provides an effective reference for this study. Scientific and reasonable design is the premise of the development of irregular tooth end milling cutter.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of helical flute of irregular tooth end milling cutter based on particle swarm optimization algorithm

Zheng

Zhang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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Due to the variable pitch angle and helix angle of the irregular tooth end milling cutter, the mass of the integral end milling cutter is eccentric, and the high stability and precision design of the irregular tooth end milling cutter is still a challenge. Aiming at the influence of dynamic balance of irregular tooth end milling cutter which can not be ignored in high-speed milling, the parameterized design of radial section of irregular tooth end milling cutter was carried out. Based on the space transformation law of the centroid of helical flute, a new method for calculating the centroid coordinate of end milling cutter was put forward, and a general mathematical model of eccentricity of integral end milling cutter was given. It was proved that this model could accurately calculate the centroid position and eccentricity of the end milling cutter. The influence of pitch difference angle and helix difference angle on eccentricity of end milling cutter was studied and analyzed. The particle swarm optimization (PSO) algorithm was creatively applied to optimize the helical flute shape of the end milling cutter, the curvature radius of helical flute curve is optimized, so that the centroid coordinate is infinitely close to the origin of coordinate. The number of iterations was set to 200. In the 32nd iteration, the result approached to infinitesimal, the final function converged, and obtained the groove curvature radius of the milling cuter with the smallest eccentricity. The optimized eccentricity of the end milling cutter is infinitesimal, which can make the vibration damping performance of the end milling cutter be fully developed. On the basis of ensuring the same cutting performance, the cutting tool unbalance was effectively reduced and the dynamic performance of milling cutter was further improved.

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Study on the stability for non-uniform helix angle tools in the milling process

Cited by 2 publications

References 23 publications

Research on design and cutting performance of gradient helix edge end mill

Research on design and cutting performance of gradient helix edge end mill

Optimal design of helical flute of irregular tooth end milling cutter based on particle swarm optimization algorithm

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