The experimental investigations of the tool wear in turning of EN 31 alloy steel at different cutting parameters are reported in this paper. Mathematical model has been developed for flank wear using response surface methodology. This mathematical model correlates independent cutting parameters viz. cutting speed, feed rate and depth of cut with dependent parameters of flank wear. This model is...

BACKGROUND A 10-question screening scale of psychological distress and a six-question short-form scale embedded within the 10-question scale were developed for the redesigned US National Health Interview Survey (NHIS). METHODS Initial pilot questions were administered in a US national mail survey (N = 1401). A reduced set of questions was subsequently administered in a US national telephone s...

In this study, investigations were conducted focusing on the WC-8Co cemented carbide. A dry turning test of TC4 titanium alloy with carbide tool treated by pulsed electromagnetic coupling treatment (PEMCT) was conducted. Tool wear observed and analyzed using a scanning electron microscope (SEM) energy dispersive X-ray spectrometer (EDS). The thermal conductivity before after PEMCT measured Hotd...

Synthesis of indole derivatives was investigated and compared to the reaction of phenylhydrazine and ketones in the presence of the heterogeneous catalysts like kaolinite, montmorillonite K10 and Fe3O4 MNPs in ethanol under reflux conditions. After comparing the HPLC chromatogram of products it was compared and found that kaolin and montmorillonite K10 are better and more efficient candidate th...

Haynes 25 alloy (also known as L-605 alloy) is cobalt based super alloy which has widely applications such as aerospace industry, turbine and furnace parts, power generators and heat exchangers and petroleum refining components due to its excellent characteristics. However, the workability of this alloy is more difficult compared to normal steels or even stainless. In present work, an experimen...

The freezing process. microstructures and phase relationships in some experimental cast tool steels have been investigated and developed under the various solidification conditions. Experimental steels were based on AISI M2 and M10 grades high speed steels. Addition of carbide forming elements such as niobium and titanium with and without extra carbon were made to the molten bath of the base st...

Abstract For tool grinding, an optimization potential in terms of productivity is available using graded grinding wheels. This especially the case when flutes cemented carbide. Due to properties carbide, high radial wear occurs. Depending on geometry flute, varies along engagement width tool. The varying can be compensated by load adapting its width. adaptation behaviour non-uniform conditions ...

The primary habitat of Staphylococcus aureus in man is the moist squamous epithelium of the anterior nares. We showed previously that S.aureus adheres to desquamated epithelial cells and that clumping factor B, a surface located MSCRAMM known for its ability to bind to the α-chain of fibrinogen, is in part responsible (O'Brien, L.M., Walsh, E.J., Massey, R.C., Peacock, S.J. and Foster, T.J., 20...

Currently, the standard material used for micro end mill tooling is sintered tungsten carbide with a cobalt binder. Its brittle nature coupled with the micro-scaled cutting features of the end mills often result in rapid tool degradation. Tool life and cutting performance can be significantly improved using a thin nanocrystalline diamond (NCD) coating. The high hardness (~90 GPa), low coefficie...