Electrorheological (ER) polishing as a new type of technique has flexibility and controllability. However, ER cannot be widely used in actual processing because the present fluid is usually prepared by simple mixing abrasive materials into fluid, which easy to occur phase separation decreased performance. This paper develops material based on cerium-doped titanium dioxide. As classic abrasive, ...

Abstract This study examines the abrasive wear behavior of nano-sized steel scale on CuZn35Ni2 Soft material. material was used as a sample, and three-body mechanism formed by nanoscale particles mixed with lubricating oil investigated using ball-on-flat tester. Three different loads, three sliding speeds environment variables were in experiments. A lubricant containing 0.15 0.3 wt.% non-abrasi...

Electroless composite coatings used for achieving of high hardness, lubrication properties, non-stick surface, abrasive coating applications that by impregnation of soft and hard particles into Ni matrix. Electroless Nickel-phosphorous coatings properties and performance is greatly affected by the amount of phosphorus in them. The phosphor in this coating usually varies from 1 to 13 percent. In...

Procambarus clarkii was found to have excellent anti-wear performance against abrasive materials. To improve the wear resistance of soil-engaging component agricultural machinery, in this study, micro-thorn and convex hull coupled geometrical structured surfaces inspired from cephalothorax exoskeleton selected as bionic prototype. By adopting engineering techniques, three types novel were propo...

The article considers the ways of solving problems, regarding rework and durability improvement elements industrial equipment. One to restore improve operational properties machinery parts is application galvanic coatings, in particular, composite coatings. shows performance composites, determines optimal content dispersed phase composite, terms ratio strength matrix. electrochemical coating we...

Numerical modeling of machining processes is of significance in the parametric analysis and optimization of their performance. In this paper, a finite element-based model of abrasive waterjet (AWJ) cutting of a ductile material is presented with the help of an explicit, nonlinear finite element method. In this model, both solid-solid interaction and fluid-structure interaction are considered. T...

OBJECTIVES The aim of the present study was to test cutting efficiency of different materials against conventional alumina in an air abrasion system. MATERIALS AND METHODS The powder samples were divided into three groups: Group 1 - alumina (control), Group 2 - 45S5 bioactive glass, and Group 3 - hydroxyapatite. 30 microscope glass slides of 0.5 mm thickness were used as an alternative of hum...

In the present study, Al5083- Al2O3 nanocomposite was successfully prepared by friction stir processing (FSP) with rotational speed of 710 rpm and travel speed of 14 mm/min. In order to improve distribution of Al2O3 particles, a net of holes were designed on the surface of Al5083 sheet. The samples were characterized by optical and scanning electron microscopy (SEM), microhardness, tensile and ...

Abrasive water jet machining is a process that removes material using sand and water. This versatile uses high-pressure loaded with abrasive particles of mineral origin. It allows the all materials particularly suitable for or stripping applications on hard metal sheets. Due to local action, limits heating deformation. During machining, removal occurs abrasion erosion [1]. The identification re...

Fluid jet machining has been widely used in of hard-brittle materials. However, the diffusion a flow significantly affects erosion capacity. Magnetorheological (MR) fluid considered to take role pure water for carrying abrasive particles, due its better concentration when external magnetic field is applied. The present investigation focuses on characteristics magnetorheological jet, which are i...