کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5019174 1467841 2017 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wear mechanism of coated tools in the turning of ductile cast iron having wide range of tensile strength
ترجمه فارسی عنوان
مجهز به ابزارهای پوشش داده شده در تبدیل چدن دار با طیف وسیعی از استحکام کششی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی
In this study different specimens of ductile cast iron with tensile strength ranking from 400 MPa to 675 MPa were turned with K15 carbide, TiN coated and TiAlN coated tool in order to investigate wear mechanism and performance. Cutting forces and cutting temperature were similar for both coated tools, however flank wear and BUE were the lowest on the TiAlN coated tool, for this reason the TiAlN coated tool is suitable in the machining of ductile cast iron. The proposed tool wear mechanism is based on like-intermittent cutting caused by the pass from hard matrix to the soft graphite occasioning wear by adhesion. The analysis of the flank wear on coated tools is proposed by means of the wear curves in logarithmic scale instead of the usual linear scale. In this way, the change in wear rate is easily observed. This phenomenon was related with the wear out of the coating layer. The partial loss of the coating layer on cutting edge was confirmed by the EDS mapping images and SEM photographs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Precision Engineering - Volume 47, January 2017, Pages 46-53
نویسندگان
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