عنوان المقالة:Investigating the Machinability of Al–Si–Cu cast alloy containing bismuth and antimony using coated carbide insert
ابراهيم ماهر | Ibrahem Maher | 11706
نوع النشر
مجلة علمية
المؤلفون بالعربي
Mohsen Marani Barzani, Ahmed AD Sarhan, Saeed Farahany, Ramesh Singh, Ibrahem Maher
الملخص العربي
Surface roughness and cutting force are two key measures that describe machined surface integrity and power requirement evaluation, respectively. This investigation presents the effect of melt treatment with addition of bismuth and antimony on machinability when turning Al–11%Si–2%Cu alloy. The experiments are carried out under oblique dry cutting conditions using a PVD TIN-coated insert at three cutting speeds of 70, 130 and 250 m/min, feed rates of 0.05, 0.1, 0.15 mm/rev, and 0.05 mm constant depth of cut. It was found that the Bi-containing workpiece possess the best surface roughness value and lowest cutting force due to formation of pure Bi which plays an important role as a lubricant in turning process, while Sb-containing workpiece produced the highest cutting force and highest surface roughness value. Additionally, change of silicon morphology from flake-like to lamellar structure changed value of cutting force and surface roughness during turning.
تاريخ النشر
01/02/2015
الناشر
Measurement
رابط DOI
10.1016/j.
رابط خارجي
http://www.sciencedirect.com/science/article/pii/S0263224114004990
الكلمات المفتاحية
Turning, Aluminum alloy, Melt treatment, Surface roughness, Chip morphology
رجوع