Dynamic analysis of runout correction in milling

Diez, Eduardo; Garcia, Hilde Perez; Villaseñor, M. Guzmán; Idoipe, Antonio Vizán

doi:10.1016/j.ijmachtools.2010.04.010

Cited by 23 publications

(4 citation statements)

References 30 publications

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“…Since the milling tool-spindle assembly is nearly a symmetric system, the measured dynamic receptance of the tool point in X and Y directions are always very close to each other, as observed by a lot of previous researchers such as [22,23,[28][29][30]. Thus, by assuming ϕ XX (iω c )=ϕ YY (iω c ), Eq.…”

Section: Lowest Envelop Methods For the Prediction Of Stability Lobesupporting

confidence: 61%

Study on the construction mechanism of stability lobes in milling process with multiple modes

Wan

Zhang

et al. 2015

Int J Adv Manuf Technol

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The stability of milling process dominated by multiple modes was traditionally predicted in the time domain by only selecting the most flexible mode. This paper theoretically studies the construction mechanism of stability lobes by simultaneously considering all dominant modes and provides an efficient method to predict stability lobes of milling systems with multiple modes in the time domain. It is theoretically proved that the effective stability lobes of milling system with multiple modes is made up of the lowest envelop of the stability lobes achieved with each single mode; hence, lowest envelop method (LEM) is established to predict the ultimate stability lobe by taking the lowest envelop of a group of stability lobes, which are calculated by separately considering different dominant modes composing the overall dynamic compliance. Typical advantage of LEM lies in that the computation time and the memory usage required in stability prediction can be greatly reduced for time domain solution. Moreover, the accuracy of prediction can be increased, when the effects of multiple modes are taken into account instead of considering only the most flexible mode. Formulation of the dynamic milling process with multiple modes is derived in semi-discrete time domain by including the effects of multiple delays. A series of simulations and experiments demonstrate the high efficiency and validity of LEM.

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Section: Lowest Envelop Methods For the Prediction Of Stability Lobesupporting

confidence: 61%

Study on the construction mechanism of stability lobes in milling process with multiple modes

Wan

Zhang

et al. 2015

Int J Adv Manuf Technol

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“…This concept has more recently been extended to consider variable helix tools [10] and runout [11]. The issue of tool runout was also considered by reference [12].…”

Section: Literature Reviewmentioning

confidence: 99%

The influence of feed rate on process damping in milling: modelling and experiments

Sims

Turner

2011

Proceedings of the Institution of Mechanical Engineers, Part B:

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eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. DOI: 10.1243/09544054JEM2141Abstract: The performance of milling operations is limited by the onset of unstable self-excited vibrations known as regenerative chatter. Over the past few decades there has been a great deal of research to help predict and explain regenerative chatter. Consequently, high-speed milling operations are now frequently employed, with judicious choice of spindle speeds and depths of cut so as to avoid chatter whilst maintaining high productivity. However, many materials that are increasingly used in aerospace components are difficult to machine at high spindle speeds because of their thermal properties. Examples include titanium and nickel alloys. For these materials, low-speed machining must be employed, and in this regime the role of regenerative chatter is less clearly understood due to the phenomenon of process damping. In the present study, a time domain model of process damping is developed. This model is used to explore the relationship between cutting conditions and the amplitude of chatter vibrations. A qualitative agreement is found between experimental behaviour and the numerical model. In particular, the model predicts a strong relationship between the workpiece feed rate (expressed as a feed per tooth), and the acceptable chatter stability defined by the process damping wavelength. Further work is needed to properly calibrate some of the model parameters.

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“…Bu değişken talaş yükü, ortalama ve tepe kuvvetlerini ve anlık kuvvet profilini kesme koşullarına, kesme geometrisine, salgının doğasına ve derecesine bağlı olarak değiştirir [ [16] ve küresel uçlu parmak frezeler [17] için benzer yaklaşımlar kullanılarak çeşitli çalışmalar gerçekleştirilmiştir. Üçüncü grup çalışmalar, takım salgısının kesme kuvvetleri üzerindeki etkilerini azaltmak için takım salgısının yol açtığı talaş kalınlığı değişiminin düzeltilmesi üzerine gerçekleştirilmiştir [18]. Bu işlem, piezoelektrik ilerleme sürücüsü ile her bir iş mili devrinde diş başına ilerlemenin hızlı bir şekilde değiştirilmesini gerektirmektedir [11].…”

Section: Gi̇ri̇ş (Introduction)unclassified

Parmak Frezeleme Sırasında Takım Salgısının Etkisi Dahil Edilerek Kesme Kuvvetlerinin Tahmini ve Analizi

Aydın

2022

Politeknik Dergisi

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❖ Takım salgısının etkilerini içeren kesme kuvveti modeli / Cutting force model including the effects of tool runout ❖ Her bir zaman aralığında kesme kuvvetlerini tahmin etmek için mekanistik model kullanımı / Using the mechanistic model to predict cutting forces at each time interval ❖ Ortalama talaş kalınlığının üstel fonksiyonları olarak tanımlanan kuvvet katsayıları / Force coefficients defined as the exponential functions of the average chip thickness

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Dynamic analysis of runout correction in milling

Cited by 23 publications

References 30 publications

Study on the construction mechanism of stability lobes in milling process with multiple modes

Study on the construction mechanism of stability lobes in milling process with multiple modes

The influence of feed rate on process damping in milling: modelling and experiments

Parmak Frezeleme Sırasında Takım Salgısının Etkisi Dahil Edilerek Kesme Kuvvetlerinin Tahmini ve Analizi

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