Optimization of a drilling sequence under MQL to minimize the thermal distortion of a complex aluminum part

被引：10

作者：

Faverjon P. ^{[1
]}

Rech J. ^{[1
]}

Valiorgue F. ^{[1
]}

Orset M. ^{[2
]}

机构：

[1] Université de Lyon, ENISE, LTDS, UMR CNRS 5513, 58 Rue Jean Parot, Saint-Étienne

[2] PCI, Rue Copernic, Saint-Étienne

来源：

Production Engineering | 2015年 / 9卷 / 04期

关键词：

Aluminum; Drilling; Heat transfer; Modeling; Thermal distortion;

D O I：

10.1007/s11740-015-0614-y

中图分类号：

学科分类号：

摘要：

The drilling process with solid carbide tools with minimum quantity lubrication is under development in the automotive industry due to its high productivity and its environmental benefit. Because of the poor cooling performance when using MQL, a high amount of heat remains in the workpiece, which induces macroscopic thermal distortions and inaccurate parts. This paper presents a methodology to model the thermal distortion of a complex part having a large number of holes. The heat flux entering into the workpiece during each drilling operation is calibrated based on embedded thermocouples and on geometrical observations of the drill surface. Finally, it is shown how the model enables the optimization of a drilling sequence so as to minimize the thermal distortion and the accuracy of the machined part. © 2015, German Academic Society for Production Engineering (WGP).

引用

页码：505 / 515

页数：10

共 21 条

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