کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
796009 902771 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fineblanking of high strength steels: Control of material properties for tool life
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Fineblanking of high strength steels: Control of material properties for tool life
چکیده انگلیسی

In order to assess the possibility of fineblanking high strength steels while preserving acceptable tool lifetimes, materials with a wide range of ultimate tensile strengths (200–1500 MPa) were fineblanked experimentally and simulated with finite element modeling. Good agreement was achieved and a refined relationship between cutting force and material strength was discovered. The strain at which the cutting force is maximized was shown to be several times greater than the uniform tensile strain, suggesting the concept of manipulating material strain hardening properties to increase material strengths markedly while maintaining acceptable tool stress levels and thus lifetimes. The concept was shown viable using finite element simulations. The results show the need for steels optimized for fineblanking applications. They will have almost opposite properties of advanced high strength steels, which are optimized for sheet formability by increasing their strain hardening at large strains.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 211, Issue 4, 1 April 2011, Pages 717–728
نویسندگان
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