Zagazig University Digital Repository
Home
Thesis & Publications
All Contents
Publications
Thesis
Graduation Projects
Research Area
Research Area Reports
Search by Research Area
Universities Thesis
ACADEMIC Links
ACADEMIC RESEARCH
Zagazig University Authors
Africa Research Statistics
Google Scholar
Research Gate
Researcher ID
CrossRef
Machinability analysis in drilling woven GFR/epoxy composites: Part II - Effect of drill wear
Faculty
Science
Year:
2010
Type of Publication:
Article
Pages:
1130-1137
Authors:
Khashaba, U. A, Selmy, A. I, El-Sonbaty, I. A, Megahed, A. A
DOI:
10.1016/j.compositesa.2010.04.011
Journal:
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING ELSEVIER SCI LTD
Volume:
41
Research Area:
Engineering; Materials Science
ISSN
ISI:000280946000015
Keywords :
Delamination, Surface analysis, Machining, Drill pre-wear
Abstract:
The current paper is a continuation of the author's work on machinability analysis in drilling woven glass fiber reinforced epoxy (GFRE) composites. The present paper deals the effect of drill pre-wear on the machinability parameters in drilling GFRE composites, at different cutting conditions. Machinability parameters were characterized by thrust force, torque, peel-up and push-out delaminations, and surface roughness of drilled holes. The results showed that, the behavior of thrust force during drilling process was greatly affected by the drill pre-wear This effect becomes extreme at high cutting speed and feed, which in turn increases delaminations and surface roughness. The scanning electron photographs demonstrate that, peaks and valleys in surface roughness profile were due to burning the matrix The multivariable linear regression models were fair to fit the experimental data. Therefore, considerable attention should be paid to record different models that improve the correlation between the machinability parameters and machining conditions. (C) 2010 Elsevier Ltd. All rights reserved.
Online
PDF
جامعة المنصورة
جامعة الاسكندرية
جامعة القاهرة
جامعة سوهاج
جامعة الفيوم
جامعة بنها
جامعة دمياط
جامعة بورسعيد
جامعة حلوان
جامعة السويس
شراقوة
جامعة المنيا
جامعة دمنهور
جامعة المنوفية
جامعة أسوان
جامعة جنوب الوادى
جامعة قناة السويس
جامعة عين شمس
جامعة أسيوط
جامعة كفر الشيخ
جامعة السادات
جامعة طنطا
جامعة بنى سويف