کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5466938 | 1398922 | 2017 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On the stability of plastic flow in cutting of metals
ترجمه فارسی عنوان
در ثبات جریان پلاستیک در برش فلزات
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
چکیده انگلیسی
We examine large-strain deformation and unsteady flow modes in cutting using high-speed imaging. For metals which exhibit large workability and strain hardening, the commonly assumed laminar flow is inherently unstable. Instead, the cutting is characterized by sinuous flow, with large-amplitude folding, that is triggered by a plastic buckling instability linked to the material microstructure. A microstructure basis is also suggested for shear band flow in high-speed cutting, with the band region showing a fluid-like characteristic with very small viscosity. Mechanochemical Rehbinder effects, long reported in cutting of metals, are found to be closely linked to the unsteady flow modes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CIRP Annals - Volume 66, Issue 1, 2017, Pages 69-72
Journal: CIRP Annals - Volume 66, Issue 1, 2017, Pages 69-72
نویسندگان
Koushik Viswanathan, Anirudh Udupa, Ho Yeung, Dinakar Sagapuram, James B. Mann, Mojib Saei, Srinivasan Chandrasekar,