کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
619626 | 1455046 | 2009 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Wear development on wiper Al2O3-TiC mixed ceramic tools in hard machining of high strength steel
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Wear development on wiper Al2O3-TiC mixed ceramic tools in hard machining of high strength steel Wear development on wiper Al2O3-TiC mixed ceramic tools in hard machining of high strength steel](/preview/png/619626.png)
چکیده انگلیسی
This paper explores the wear mechanisms occurring for the mixed ceramic inserts against 60 HRC alloy steel (equivalent to AISI 5140 or DIN 41Cr4) specimens in dry and hard finish turning operations. Several machining wear tests were performed under varying feed rate, constant cutting speed of 100Â m/min and small depth of cut of 0.2Â mm. Light optical microscopy (LOM), scanning electron microscopy (SEM) and back-scattering electron (BSE) technique were employed to observe morphological features of worn surfaces produced by various wear mechanisms. In addition, the elemental compositions of wear products were evaluated by energy-dispersive X-ray (EDX) micro-analysis, called sometimes energy-dispersive X-ray spectroscopy (EDS). As a result, both microscopic and microstructural aspects of ceramic tool wear were considered. In general, wear mechanisms identified in the machining tests involve abrasion, fracture, plastic flow and transferred layers, BUE and tribochemical effects. Specific wear symptoms appeared depending on the mechanical and thermal conditions generated in the wear zones. In particular, two types of material transfer with different morphologies occurring at the rake-chip interface are distinguished.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 266, Issues 9â10, 24 April 2009, Pages 1021-1028
Journal: Wear - Volume 266, Issues 9â10, 24 April 2009, Pages 1021-1028
نویسندگان
W. Grzesik,