Application of a comprehensive dynamic cutting force model to orthogonal wave-generating processes

Wu, D. William

doi:10.1016/0020-7403(88)90101-4

Cited by 63 publications

(14 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two main different research lines were used to model the effect of the tool flank wear. The first approach based on the contact force model [32,33] establishes a proportionality relationship between the contact force and the displaced volume of the workpiece under the tool. This model is suitable for mild steels turning, but not for hard materials because of the difficulty in estimating the displaced volume in short tool life spans.…”

Section: Wear Force Componentmentioning

confidence: 99%

Wear-dependent specific coefficients in a mechanistic model for turning of nickel-based superalloy with ceramic tools

Lacalle

Urbikaín

Fernández-Valdivielso

et al. 2017

Open Engineering

View full text Add to dashboard Cite

Difficult to cut materials such as nickel and titanium alloys are used in the aeronautical industry, the former alloys due to its heat-resistant behavior and the latter for the low weight -high strength ratio. Ceramic tools made out alumina with reinforce SiC whiskers are a choice in turning for roughing and semifinishing workpiece stages. Wear rate is high in the machining of these alloys, and consequently cutting forces tends to increase along one operation. This paper establishes the cutting force relation between work-piece and tool in the turning of such difficult-to-cut alloys by means of a mechanistic cutting force model that considers the tool wear effect. The cutting force model demonstrates the force sensitivity to the cutting engagement parameters (ap, f) when using ceramic inserts and wear is considered. Wear is introduced through a cutting time factor, being useful in real conditions taking into account that wear quickly appears in alloys machining. A good accuracy in the cutting force model coefficients is the key issue for an accurate prediction of turning forces, which could be used as criteria for tool replacement or as input for chatter or other models.

show abstract

Section: Wear Force Componentmentioning

confidence: 99%

Wear-dependent specific coefficients in a mechanistic model for turning of nickel-based superalloy with ceramic tools

Lacalle

Urbikaín

Fernández-Valdivielso

et al. 2017

Open Engineering

View full text Add to dashboard Cite

show abstract

“…Wu [18,19] developed a model of ploughing forces during milling, assuming a rounded tool and a sinusoidal chip thickness variation. Force predictions were presented but the analysis stopped short of assessing the effect of the ploughing forces on chatter and tool wear.…”

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:

View full text Add to dashboard Cite

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.

show abstract

“…The ploughing mechanism has been studied for over forty years [Albrecht 1960, Palmer 1963 in attempts to explain various cutting phenomena such as the size effect of chip thickness on forces [Nakayama 1968], machined surface properties [Thiele 2000], burr formation [Lee 2002], and cutting process damping [Sisson 1969;Wu 1988;Elbestawi 1991;Ranganath 1999]. Ploughing has also been examined for its own contribution to cutting forces [Bitans 1965;Johnson 1967;AbdelMoneim 1974;Sarwar 1981;Rubenstein 1990;Zhang 1991;Endres 1995;Wang 2002] and its relationship to worn tool flank forces [Usui 1984;Elanayar 1994].…”

Section: Introductionmentioning

confidence: 99%

A Simplified Model for Ploughing Forces in Turning

Waldorf

2006

Journal of Manufacturing Processes

View full text Add to dashboard Cite

This paper aims to provide experimental data in support of a modified theoretical model for quantifying the effect of cutting tool edge geometry on machining forces. A previously published slip-line model is simplified and extended to the case of turning. Several sets of machining experiments were run with customfabricated cutting inserts of varying edge hone radius and chamfer geometry. Cutting forces were measured using a dynamometer during cutting.Results show that varying edge geometry can have a major effect on cutting forces.The developed model effectively captures the edge phenomenon and its effect on cutting forces and also offers a glimpse of how the edge geometry can affect dynamic process damping.

show abstract

Application of a comprehensive dynamic cutting force model to orthogonal wave-generating processes

Cited by 63 publications

References 17 publications

Wear-dependent specific coefficients in a mechanistic model for turning of nickel-based superalloy with ceramic tools

Wear-dependent specific coefficients in a mechanistic model for turning of nickel-based superalloy with ceramic tools

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

A Simplified Model for Ploughing Forces in Turning

Contact Info

Product

Resources

About