Simulation of thermal and mechanical workpiece load

Niederwestberg, D.; Denkena, Berend

doi:10.1016/j.cirpj.2014.07.004

Cited by 11 publications

(4 citation statements)

References 13 publications

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“…About the influence factors of error coupling of thin-walled parts, the researchers at home and abroad mainly focuses on the error coupling of datum transformation [8,9], thermal coupling [10,11], stress coupling [12][13][14], etc. Liu et al [15] studied a variety of error fields generated in the multi position clamping of thin-walled parts, and built a 3D error coupling model using the state space theory.…”

Section: Introductionmentioning

confidence: 99%

A control method with considering error coupling in milling multi-feature thin-walled parts

Zuo

Yin

Xiong

et al. 2022

Int J Adv Manuf Technol

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The error coupling analysis is important for machining accuracy of thinwalled parts. However, most of the error coupling analysis methods only based on multiple error sources with a single feature, without considering the coupling relationship of these errors between features. This paper no longer focuses on analyzing the machining error of a single feature, but discusses the error coupling phenomenon between each other and interrelated features. First, interactive factors during machining multiple features are analyzed. Subsequently, according to the main interactive factors, the models about geometric interaction and machining interaction of multi feature processing are established. Afterwards, based on the comprehensive error model obtained through the transformation of the coordinate systems, an efficient error control method of multi feature thin-walled parts is proposed. Finally, the approach has been validated through an illustrative case study using a sample part with complex machining features.

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Section: Introductionmentioning

confidence: 99%

A control method with considering error coupling in milling multi-feature thin-walled parts

Zuo

Yin

Xiong

et al. 2022

Int J Adv Manuf Technol

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“…A model allowing for the calculation of the transient workpiece temperature in milling using experimental results for the modeling of the heat input into the workpiece was presented by Joliet [6]. The thermal and mechanical workpiece load during milling is calculated by means of a dexel model of the workpiece in [12]. For this purpose, the intersection of the workpiece and the tool is determined in every time step.…”

Section: Introductionmentioning

confidence: 99%

Identification of thermal effects on the diameter deviation of inhomogeneous aluminum metal matrix composite workpieces when dry turning

Schindler

Zimmermann

Aurich

et al. 2015

Prod. Eng. Res. Devel.

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The use of dry cutting is associated with considerable thermal loads on the machine tool, the tool and the workpiece because of the missing heat convection through the cutting fluid. These thermal loads cause thermal expansions of the components. The accuracy of machining is thus decreased. In recent years, particularly the thermal expansions of the workpiece and the tool attained significance due to the increased demands on the machining accuracy. Aluminum metal matrix composites (Al-MMCs) show a poor machinability due to the reinforcement of light metal alloys via hard and abrasive materials. Dry turning of such composites is therefore accompanied with high thermal workpiece and tool loads. In this paper, finite element models of the workpiece and the tool are used in order to calculate the temperature distribution and thus the thermally induced expansion of the workpiece and the tool when turning AL-MMC regarding the cutting condition used. The removal of material and the heat flow to the environment are considered. The required boundary conditions (e.g. the heat flow into the workpiece) for the simulations were determined using experimental results. A new evaluation method of experimental diameter measurement validates the numerically calculated diameter deviations and reveals a considerable effect of the thermal expansions of the workpiece and the tool on the accuracy of machining.

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“…A relatively new technology is turn-milling, in which the cutting force was investigated using a predictive analytical model by Karaguzela et al [10]. For complex surfaces, Niederwestberg and Denkena [11] have extended the modeling of the cutting process to arbitrary milling operations in which milling is performed with a rotating tool. The new way of modeling made it possible to consider all the relevant technological parameters.…”

Section: Introductionmentioning

confidence: 99%

Force and Temperature Conditions of Face Milling with Varying Chip Quotient as a Function of Angle of Rotation

Kundrák¹,

Pálmai²,

Karpuschewski³

et al. 2021

Manufacturing Technology

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Increasing the efficiency of cutting operations while fulfilling the required (expected) quality of the parts constantly requires a thorough knowledge of the chip removal process. This is especially justified in the case of deviations from the usual (traditional) technological conditions or cutting data, both in terms of cutting theory and technique. This paper summarizes some of the results of a study of cutting force and cutting temperature in face milling. The technological analysis of face milling was performed by FEM simulation, which was compared and validated by measuring the cutting force. The chip removal of C45 rolled steel as a function of tool rotation was studied with two different depths of cut ap and feed rate fz so that at a constant nominal Ac cross section the ratios ap/fz were 0.1 and 10. The effect of the change of the cross-section and chip ratio is shown.

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Simulation of thermal and mechanical workpiece load

Cited by 11 publications

References 13 publications

A control method with considering error coupling in milling multi-feature thin-walled parts

A control method with considering error coupling in milling multi-feature thin-walled parts

Identification of thermal effects on the diameter deviation of inhomogeneous aluminum metal matrix composite workpieces when dry turning

Force and Temperature Conditions of Face Milling with Varying Chip Quotient as a Function of Angle of Rotation

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