کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5015754 1464480 2017 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A computational fluid dynamics (CFD) model for effective coolant application in deep hole gundrilling
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
A computational fluid dynamics (CFD) model for effective coolant application in deep hole gundrilling
چکیده انگلیسی
Effective coolant application in deep hole gundrilling is crucial to prevent rapid degradation and failure of drills through high performance cooling, lubrication and chip evacuation. This paper presents a novel methodology to increase effectiveness of coolant application through strategic optimization of gun drill designs that leads to appreciable tool life improvement, based on computational fluid dynamics (CFD) analysis. Through the analyses of coolant flow characteristics and rheological properties, conventional designs of critical drill geometries like nose grind contour, coolant hole configuration and shoulder dub-off angle, which are detrimental to coolant application and hence tool life are determined. A new, optimized gun drill design for the drilling of deep holes on Ni-based alloys is proposed. All findings are experimentally substantiated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Machine Tools and Manufacture - Volume 113, February 2017, Pages 10-18
نویسندگان
, , , , ,