Analysis of the Chip Geometry in Dry Machining of Aeronautical Aluminum Alloys

Applied Sciences

Lorenzo Sevilla Hurtado¹  Carolina Bermudo Gamboa¹  Francisco Martín Fernández¹  Francisco Javier Trujillo Vilches¹ 

[1] Civil, Material and Manufacturing Engineering Department, ETSII-EPS, University of Malaga, Málaga 29071, Spain;

关键词: chip morphology;    aluminum alloys;    dry machining;    shrinkage factor;    UNS A97075;    UNS A92024;   

DOI  :  10.3390/app7020132

来源: DOAJ

【 摘 要 】

Aluminum alloys are widely used in the manufacturing of structural parts for aircraft, frequently in combination with other materials such as CFRP (Carbon Fiber Reinforced Polymer), to form FML (Fiber Metal Laminates) structures (CFRP/Al). The dry machining of these structures presents several problems, some of which are related to chip evacuation, either when machining aluminum alloys as an isotropic material, or during hybridization with composites. In this work, a study of the way in which cutting parameters influence the chip morphology in the dry machining of UNS A97075-T6 (Al-Zn) and UNS A92024-T3 (Al-Cu) alloys, is performed. Thus, different geometric parameters of the chip morphology have been obtained, and their evolution with feed has been analysed. Finally, the different relationships which occur between these geometric parameters and feed, have been obtained. These relationships allow a prediction of the evolution of some of the geometric parameters of the chip, as a function of feed.

【 授权许可】

Unknown