Numerical and Experimental Investigation of Incremental Hole Flanging Process Parameters and Tool Profile on the Formability of (AA1050 and DC01)Sheet metals

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

Present study delves experimentally and numerically in incremental hole flanging process applied to aluminum AA1050 and steel DC01 sheet metals with thicknesses of (0.7 and 1) mm. A distinctive lathe-based fixture and utilizes a proposed tool profile and fixture incorporating mutually spinning and rolling motions. Investigation covers forming angles (45°, 72°, and 90°) by utilizing one tool and rotational forming speeds (170, 350, and 525) rpm. Primary objective to assess impact of tool wall angle and forming speeds on microhardness, thickness ratio, forming limit diagram (FLD) mapping the failure criteria on graph of two axes representing major and minor strains, flange height, surface quality. Study employs microhardness testing, flange height measurements, final thickness, and surface roughness test. Results revealed different hardness and thickness variations depending on material types and sheet thicknesses, showing a critical forming speed a critical change in variation trend occurs irrespective of wall angle. Thus, forming speed and tool profile should select carefully to produce a maximum forming limit and a large amount of plastic deformation with no failure.Hardness distribution experienced smooth variation and maximum increase in post hardness does not exceed, 98 % and 25 % for DC01 of (0.7 and 1) mm respectively. For AA1050 of (0.7 and 1) mm, maximum increase in post hardness does not exceed 10 % and 8 % respectively. Without crack at end of process. Thickness distribution shows a uniform variation along flange profile with maximum reduction in thickness DC01 of (0.7 and 1) mm thicknesses that do not exceed 22.8 % and 28.1 % respectively at forming speed of 350 rpm. for AA1050, results indicated that the maximum reduction in thickness does not exceed 38.9 % for 0.7 mm sheet thickness and 52.7 % for 1 mm thickness at forming speeds of 350 rpm and 525 rpm respectively. Surface roughness tests revealed that for DC01 of (0.7 and 1) mm thickness, maximum increase doesn't exceed 164% and 154% respectively. For AA1050 of the same thicknesses, increases are within 117% and 163%. Overall, variations in surface roughness remain manageable. Results from numerical analysis were compared to experimental one, and good agreement generally found. Consequently, a validated simulation model can be developed and adopted to study more cases that may difficult to conduct experimentally.Finally, based on the proposed tool geometry and fixture arrangement adopted in present work, these results indicated that a good improvement in formability is satisfied and can be used successfully in incremental hole flanging process.

روابط وملفات

التعريف والنوع

رقم الوثيقة

019e1cad-c37a-4a2f-b7b0-ddc609c4ebb1

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf image

أسماء الملفات

019e1cad-c37a-4a2f-b7b0-ddc609c4ebb1_1.pdf

بيانات النشر

ترجمة العنوان

دراسة العددية والتجريبية لعوامل عملية تشفيه الثقوب المتزايدة وشكل الأداة بشأن قابلية تشکيل الصفائح المعادن (AA1050وDC01)

ألقاب المؤلفين

[{"name_ar":" Ayad Fayiq Shahab","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Hameed Dywj Lafta","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Hunar Mohamed Tahir Mohamed Ali ","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

Numerical and Experimental Investigation of Incremental Hole Flanging Process Parameters and Tool Profile on the Formability of (AA1050 and DC01)Sheet metals

المحتوى والصفحات

عدد الصفحات

129

كلمات الباحثين

AA1050 and DC01)

إشراف وإعداد

الإشراف

Ayad Fayiq Shahab, Hameed Dywj Lafta

الإعداد

Hunar Mohamed Tahir Mohamed Ali

الاقتباسات الببليوغرافية