Risks related to the lack of lubrication on surface integrity in drilling

被引：6

作者：

Girinon, Mathieu ^{[2
,3
]}

Karaouni, Habib ^{[1
]}

Masciantonio, Ugo ^{[3
]}

Lefebvre, Fabien ^{[3
]}

Jourden, Erwan ^{[4
]}

Valiorgue, Frederic ^{[2
]}

Rech, Joel ^{[2
]}

Feulvarch, Eric ^{[2
]}

机构：

[1] SAFRAN Tech, Rue Jeunes Bois, F-78772 Magny Les Hameaux, France

[2] Univ Lyon, UMR5513 CNRS, LTDS, ENISE, 58 Rue Jean Parot, F-42023 St Etienne, France

[3] CETIM, 52 Ave Felix Louat, F-60300 Senlis, France

[4] AREVA NP, 10 Rue Juliette Recamier, F-69006 Lyon, France

来源：

HELIYON | 2019年 / 5卷 / 01期

关键词：

Mechanical engineering; QUANTITY;

D O I：

10.1016/j.heliyon.2019.e01138

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Drilling processes can significantly affect the surface integrity of metallic components. Thus, the control of the drilling process is of great interest for industry to ensure a satisfactory surface behavior. The understanding of such a process is complex because the hole is confined. Therefore, the physical phenomena are not easily observable during a drilling operation. The aim of this article is to present an experimental investigation on the effect of the drilling conditions for the machining of an austenitic stainless steel 316L. Three cases of lubrication are studied: internal coolant, external coolant and dry. The objective is to identify the mechanical and thermal contributions on surface integrity. In this study, the influence of the lubrication conditions is first characterized during the drilling operation (temperatures around the drilled surface, forces.). Then, the effect of lubrication on the surface integrity after drilling is clearly highlighted by analyzing the hole diameters, the drill deflections, the roughness, the residual stresses, the hardness and the microstructure.

引用

页数：18

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