the price of single point diamond tools with a sharp tip is very high due to complex machining process and highly expensive machining equipments. yet, the performance is not quite satisfactory. in this paper, we have presented a very simple and cost effective machining process for the sharpening and polishing of diamond stylus using low energy reactive ion beam machining (ribm). in our method, ...

Abrasive flow machining (AFM) is a process for the production of excellent surface qualities of inner profiles that are difficult to access and outside edges, as well as for deburring and edge rounding. The grinding medium used in AFM consists of a polymer fluid, the so-called base, in which the abrasive grains are bound. The grinding medium is pressed along the contours at a defined pressure a...

The aim of this paper is to investigate the effect of cutting speed and uncut chip thickness on cutting performance. A Finite Element Method (FEM) based on the ABAQUS explicit software which involves Johnson-Cook material mode and Coulombs friction law was used to simulate of High Speed Machining (HSM) of AISI 1045 steel. In this simulation work, feed rate ranging from 0.05 mm/rev to 0.13 mm/re...

Electrical discharge machining process is one of the most Applicable methods in Non-traditional machining for Machining chip in Conduct electricity Piece that reaching to the Pieces that have good quality and high rate of machining chip is very important. Due to the rapid and widespread use of alloy DIN1.2080 in different industry such as Molding, lathe tools, reamer, broaching, cutting guillot...

Present work deals with the accuracy of manufacturing machines and the possibility of regular diagnostic of machining centers in order to improve the quality and productivity of machining process of a CNC MCV-400 machine usingLaser calibration and Ballbar tests with the help of Renishaw equipment.The accuracy of machine tools is a critical factor that affects the quality of manufactured product...

Recently, bio-based oil was used as industrial lubricant due to the increasing consideration on environment effect and health issues and in order to replace the usage of petroleum-based oil. The modified vegetable oil exhibit excellent lubrication and tribological performances when compared to the petroleum-based oil. In this study, the crude jatropha oil was modified via chemical modification ...

Hard machining, as attractive replacement for many rough and finish grinding operation, generates high cutting forces and temperature that enhance tool wear when act together. Therefore, the tool geometry and machining parameters have to be carefully optimized for a given material. Because of high cost and time consuming experimental work up-to-date advanced software for modeling and simulation...

Tool wear increases cutting force, vibration, temperature, etc in end milling and reduces surface finish of the machined work piece. Mathematical model has been developed to predict the tool wear in terms of machining parameters such as helix angle of cutting tool, spindle speed, feed rate, axial and radial depth of cut. Central composite rotatable second order response surface methodology was ...

Finite edge radius plays a significant role in finish machining processes when the undeformed chip thickness is often less than a few hundred microns and comparable to the size of the cutting edge. At suboptimal cutting speeds, edge radius tools may induce deeper subsurface plastic deformation, increase microhardness through work-hardening and mostly due to the ploughing of the cutting edge. On...