Preventing chatter vibrations in heavy-duty turning operations in large horizontal lathes

被引：70

作者：

Urbikain, G. ^{[1
]}

Campa, F. -J. ^{[1
]}

Zulaika, J. -J. ^{[2
]}

Lopez de Lacalle, L. -N. ^{[1
]}

Alonso, M. -A. ^{[1
]}

Collado, V. ^{[2
]}

机构：

[1] Univ Basque Country, UPV EHU, ETSI, Dept Mech Engn, Bilbao 48013, Bizkaia, Spain

[2] Tecnalia Res & Innovat, San Sebastian 20009, Gipuzkoa, Spain

来源：

JOURNAL OF SOUND AND VIBRATION | 2015年 / 340卷

关键词：

MACHINE-TOOLS; STABILITY; OPTIMIZATION; SUPPRESSION; PREDICTION; WORKPIECE; DESIGN;

D O I：

10.1016/j.jsv.2014.12.002

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Productivity and surface finish are typical user manufacturer requirements that are restrained by chatter vibrations sooner or later in every machining operation. Thus, manufacturers are interested in knowing, before building the machine, the dynamic behaviour of each machine structure with respect to another. Stability lobe graphs are the most reliable approach to analyse the dynamic performance. During heavy rough turning operations a model containing (a) several modes, or (b) modes with non-conventional (Cartesian) orientations is necessary. This work proposes two methods which are combined with multimode analysis to predict chatter in big horizontal lathes. First, a traditional single frequency model (SFM) is used. Secondly, the modern collocation method based on the Chebyshev polynomials (CCM) is alternatively studied. The models can be used to identify the machine design features limiting lathe productivity, as well as the threshold values for choosing good cutting parameters. The results have been compared with experimental tests in a horizontal turning centre. Besides the model and approach, this work offers real worthy values for big lathes, difficult to be got from literature. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：317 / 330

页数：14

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