In any metal cutting machining operation, the fluid plays important role by cooling tool and surface of work piece, also chips are removed from heat affected zone. However, misuse wrong methods its disposal can affect human health environment badly. This paper presents a review research papers published regarding MQL-based application mineral oils, vegetable oils nano fluid-based fluids for dif...

Finite element modeling (FEM) of machining is a widely applied way to get information about the phenomena occurring during the cutting process. However, the results have to be validated by real data collected by cutting experiments. We have realized a machining experiment focusing on temperature and tool-wear. The paper introduces some results and compares them with the FEM outcomes.

The heat extraction from the lower convective zone or storage zone of salinity gradient solar pond with corrugated bottom is investigated with the aim of increasing the overall efficiency of collecting solar radiation, storing heat and delivering this heat to different applications. The energy balance equations for each zone have been used to develop the expression of temperature distribution i...

This work deals with problems of tool axis inclination angles in ball-end milling. Tool axis inclination angle contributes to improvement of functional surface properties (surface integrity surface roughness, residual stress, micro hardness, etc.), decreasing cutting forces and improving production. By milling with ball-end milling tool, using standard way of cutting, when work piece and cuttin...

In this paper, uniform and variable edge microgeometry design inserts are utilised and tested for 3D turning process. In 3D tool engagement with workpiece, thickness of the chip varies from a maximum equal to the feed rate (at primary cutting edge) to a minimum on the tool’s corner radius (at trailing cutting edge). The ideal tool edge preparation should posses a variable configuration which ha...

In this talk I describe an interesting relation between Feynman graphs at finite temperature and chemical potential and the corresponding ones at zero temperature. The operator relating the two which we call the “thermal operator”, simplifies the evaluation of finite temperature graphs and helps in understanding better several physical questions such as cutting rules, forward scattering, gauge ...