Drilling of CFRP-Ti6Al4V stacks using CO2-cryogenic cooling

被引：70
|
作者：
Rodriguez, A. [1 ]
Calleja, A. [2 ]
de Lacalle, L. N. Lopez [1 ,2 ]
Pereira, O. [1 ]
Rubio-Mateos, A. [3 ]
Rodriguez, G. [3 ]
机构：
[1] Univ Basque Country UPV EHU, CFAA, Parque Tecnol Zamudio 202, Bilbao 48170, Spain
[2] Univ Basque Country UPV EHU, Dept Mech Engn, Nieves Cano 12, Vitoria 01006, Spain
[3] Tecnalia Res & Innovat, Parque Cient & Tecnol Gipuzkoa, Donostia San Sebastian 20009, Spain
来源：
JOURNAL OF MANUFACTURING PROCESSES | 2021年 / 64卷
关键词：
CFRP; Ti6Al4V; Stacks drilling; Cryogenics CO2; MINIMUM QUANTITY LUBRICATION; TOOL WEAR; SURFACE INTEGRITY; CUTTING FLUID; CFRP; DESIGN; DAMAGE; DELAMINATION; WET;
D O I：
10.1016/j.jmapro.2021.01.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the work here presented, liquefied CO2 is used as cutting fluid for drilling CFRP-Ti6Al4V stacks as alternative to dry-drilling. Several tests were performed using dry-drilling technique, to compare this with the performance of CO2 cryogenic cooling. This work shows the feasibility of the proposed alternative, not only regarding technical issues but also environmental concerns. Results show that when CO2 is used in drilling, hole diameter values diverge below 0.5 % from nominal values, tool tip temperature is drastically reduced, and surface integrity of CFRP layers are preserved. Drilling tool edges damage is reduced and so tool life extended. In short, dry-drilling process was notably improved by CO2 assistance in comparison with dry drilling.
引用
收藏
页码：58 / 66
页数：9
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