نتایج جستجو برای: aisi
تعداد نتایج: 3543 فیلتر نتایج به سال:
Microlubrication minimizes the exposure of metal working fluids (MWFs) leading to an economical, safer and healthy workplace environment. In this study vegetable based lubricant is used to conduct wear analysis during end milling AISI 1018 steel using microlubrication. Solid carbide cutting tool was used with varying cutting speed and feed rate having a constant depth of cut. A full factorial e...
In this study, three different vegetable-based cutting fluids developed from raw and refined sunflower oil and two commercial types (vegetable and mineral based cutting oils), were carried out to determine for thrust force and surface roughness during drilling of AISI 304 austenitic stainless steel with HSSE tool. The uses of vegetable cutting oils was investigated in reducing thrust force and ...
فولادهای زنگ نزن به علت کارایی خوبشان در محیط های مختلف و هزینه نسبتاً پایینشان، کاربردهای زیادی در فرآیندهای صنعتی مرتبط با کربوشیمیایی، پتروشیمی، نیروگاه ها، سیستم های تبدیلی گاز و هوافضا دارند. طی سرویس در دماهای بالا، فولاد های زنگ نزن دارای محدودیت مقاومت در برابر اکسیداسیون می باشند. در حقیقت تحت شرایط اکسیداسیون، به علت پوسته شدن لایه محافظ و ترک خوردن آن، مقاومت در برابر اکسیداسیون این ف...
The optimized cutting parameters are very important to control the required surface quality. In the present study, Taguchi method is used to find the optimal cutting parameters for surface roughness (Ra) in turning. The L-18 orthogonal array, the signal-to-noise ratio & analysis of variance are employed to study the performance characteristics in turning operations of AISI-410 steel bars using ...
The purpose of the tests was to determine whether and how sterilisation process of samples made of AISI 316L stainless steel with diff erent strain impacts their corrosion resistance. Tests were made on steel samples that had been electrochemically polished in order to assure proper surface roughness. In order to evaluate the infl uence of sterilisation on physical and chemical properties of st...
The objective of this paper is to determine the optimal setting of the process parameters on the electro-discharge machining (EDM) machine while machining AISI H13 tool steel. The parameters considered are pulse current, pulse-on-time, pulse-off-time and gap voltage ; whereas the responses are Tool wear ratio (TWR) and material removal rate (MRR). The optimal setting of the parameters are deter...
India is the second largest bicycle manufacturer in the world, next only to China. The Chinese bicycle industry has already been successful in cornering almost 25 per cent share in fancy bicycle market in India which is a major cause of worry for the small-scale bicycle parts manufacturers in India. An attempt has been made to provide a comprehensive framework for the selection process of bicyc...
Thin alumina films, deposited at 280~ by low-pressure, metal-organic, chemical-vapor deposition on stainless steel, type AISI 304, were annealed at 0.17 kPa in a nitrogen atmosphere for 2, 4, and 17 hr at 600, 700, and 800~ The effect of the annealing process on the adhesion of the thin alumina films was studied using a scanning-scratch tester, type SST-IO1, developed by Shimadzu. The best mech...
Lie symmetry method is applied to find analytic solutions of initial-boundaryvalue problems of transient conduction in semi-infinite solid with constant surface temperature or constant heat flux condition. The solutions are obtained in a manner highlighting the systematic procedure of extending the symmetry method for a PDE to investigate BVPs of the PDE. A comparative analysis of numerical and...
Abstract– In the present paper, the effect of heat treatment on the surface roughness of AISI 4140 steel has been investigated by use of paired t-test and one way analysis of variance (ANOVA). The paired t-test was performed to determine the differences between the means before and after heat treatment. One way ANOVA was used to further evaluate the effect of heat treatment on the difference in...
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