Nowadays, polycrystalline diamond compact (PDC) cutters performance dropped and affects the performance of drilling efficiency. The objective of this project is to investigate the effect of PDC cutters geometry and optimize their geometry... more
In this research, the mechanical properties (microhardness and wear) of Al-8Si-3Cu-2Zn nanocomposites with 0, 2, and 5% by weight of tungsten disulfide nanoplates have been investigated. The studied nanocomposite was produced through... more
моделирование организационно-технологиЧеских и техниЧеских структур сборки машиностроительных изделий Сборка сложных машиностроительных изделий в условиях мелкосерийного производства характеризуется низким уровнем достоверности... more
моделирование организационно-технологиЧеских и техниЧеских структур сборки машиностроительных изделий Сборка сложных машиностроительных изделий в условиях мелкосерийного производства характеризуется низким уровнем достоверности... more
Abrasive wear is one of the prime and mostly costly causes of secondary failure in the design and operation of mechanical machines and equipment. Wear limits must be known and measured to assure quality and durability of products by an... more
La presente investigación se originó con el objetivo de diseñar un \emph{software} con Matlab que permita calcular la velocidad de desgaste abrasivo de engranajes rectos y helicoidales de perfil evolvente. Donde, las generalidades no... more
The optimization of wear rate of the nanocomposites with A356 aluminium alloy matrix, reinforced with silicon carbide nanoparticles, was performed through the analysis of the following influences: wt% of the reinforcement, normal load and... more
The Al-Si alloy with near eutectic composition has been conventionally used as a piston material for automobile applications. It is required to possess high abrasive wear resistance for enhanced life of the engine. The alloy is known to... more
The Al-Si alloy with near eutectic composition has been conventionally used as a piston material for automobile applications. It is required to possess high abrasive wear resistance for enhanced life of the engine. The alloy is known to... more
The optimization of wear rate of the nanocomposites with A356 aluminium alloy matrix, reinforced with silicon carbide nanoparticles, was performed through the analysis of the following influences: wt% of the reinforcement, normal load and... more
The working hard conducts that some material suffer from lead us to protect it from corrosion and give long life. When we select protective system we shall take three points, the work place, base structure and the protective system it... more
Wear resistance is one of the important technological properties of magnesium alloys that may limit their practical applications, though limited information is available in the literature. In this study, wear behavior of ascast and hot... more
Tribological properties of engineering components are a key issue due to their effect on the operational performance factors such as wear, surface characteristics, service life and in situ behavior. Thus, for better component quality,... more
P OLYPROPYLENE/ nano-copper composites have been prepared with 0.5, 1, 1.5 and 2.5 wt.% nano-copper particles by mixing the nano-copper physically with the polypropylene granules then extruded by a twin screw extruder. A comprehensive... more
Diamond-like carbon (DLC) films are suitable applicants for cutting tools due to their high hardness, low friction coefficient and wear rate. Doping metals in DLC films have been improved its tribological properties. In this study,... more
Nano-structured coatings can be used to reduce surface roughness, improved hardness and to protect against wear of the components. In this, research article the AISI 440C Stainless Steel is considered for coating Nano-particles and... more
On inception, 3D printed parts were typically used at prototyping stage to give the end user/customer a real world concept of how the part may appear when traditional manufacturing techniques were employed for final part fabrication. In... more
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or... more
The surface coating is one of the novel approaches to enhance the performance and durability of the mechanical components by decreasing the wear and friction among two interacting bodies. In this study, tribological and mechanical... more
Notwithstanding the success of nanolayered coatings in the reduction of wear at nano-/microscales, the improvement of the wear resistance at the macroscale remains an issue. Moreover, the effects of nanointerfaces in nanolayered coatings... more
A series of experimental tests were carried out to observe the deposition rates on different stainless steel substrates of different surface roughnesses under different operating conditions using a hot filament thermal chemical vapour... more
Influence of Fluorine Doping on Hardness and Compressive Stress of the Diamond-Like Carbon Thin Film
This study assessed the influences of fluorine introduced into DLC films on the structural and mechanical properties of the sample. In addition, the effects of the fluorine incorporation on the compressive stress in DLC films were... more
La presente investigación se originó con el objetivo de diseñar un \emph{software} con Matlab que permita calcular la velocidad de desgaste abrasivo de engranajes rectos y helicoidales de perfil evolvente. Donde, las generalidades no... more
Cold forging processes are of great importance in production engineering due to the high material utilization and the associated energy and resource efficiency. Liquid and solid lubricants are used in order to perform cold forging... more
Zinc Plating (Electroplating) is one of the most used coating method in the industries. Zinc plating is widely applied to almost all the metal parts manufactured in the industry. Industries faces the problem of metal part rusting and... more
A new type of coating is developed, which is a mechanical mixture of two different powders, namely, Ni-Cr-B-Si-Fe (PG 19N 01) and WC-Co (hard alloy). After the coatings from this mixture are deposited, their surface layer is fused with a... more
Under the umbrella of Rapid-X (Udroiu & Ivan, 2008) there are some specific terms such as: Rapid Product Development (RPD), Rapid Technology, Rapid Nanotechnology, Rapid Prototyping (RP), Rapid Tooling (RT) and Rapid Manufacturing (RM).... more
The global thermal spray coatings market was valued at USD 10.1 billion in 2019 and is expected to grow at a compound annual growth rate of 3.9% from 2020 to 2027. Carbide coatings form an essential segment of this market and provide... more
Magnesium alloy AZ31B is an important lightweight, high specific strength material for new generations of energy-effective vehicles. Presently, a critical challenge that the vehicle production is facing is how to prevent the material from... more
Experimental studies have been made to determine the oxidation be heavier of several coatings system on commercial mild steel alloy (AISI 1020). The oxidation kinetics of a single stage coating such as Aluminized and Nickel have been... more
Surface metal matrix composites have been developed to enhance properties such as erosion, wear and corrosion of alloys. In this study, ~5 µm or ~75 µm SiC particulates were preplaced on a microalloyed steel. Single track surface zones... more
Magnetron sputtered non-hydrogenated diamond-like carbon (DLC) coatings were tested against Al, Cu and Ti pins using a vacuum pin-on-disc tribometer. The objective was to compare Al, Ti, and Cu transfer to DLC coatings in air (29% RH) and... more
In the present study, the Al2219, Al2219/ B 4 C & Al2219/B 4 C/MoS 2 hybrid composites are investigated under dry sliding wear test as for ASTM G 99-95 standard. Al 2219 base matrix reinforced with B 4 C & mixture of B 4 C and MoS 2 are... more
In Total Joint Replacement (TJR), ceramic surfaces offer a major benefit of drastically reduced wear rates and excellent long-term biocompatibility with the bone tissue. Among the available ceramic materials for load bearing bio-implant... more
The friction coefficient and wear behavior of 316L austenitic stainless steel and 316L steel + 8vol% TiB 2 + 1vol% B composites were investigated within a temperature range of 20°C to 800°C. The materials were prepared by the powder... more
Electrical discharge machining (EDM) is a widely used process in the mould / die and aerospace industries. It is a process for shaping hard metals and forming deep and complex-shaped holes by arc erosion in all kinds of electro-conductive... more
Mono composite (Al2219/6%B4C) and hybrid composites (Al2219/6%B4C/3%Gr) were developed by stir casting process. Dry sliding wear behavior of mono and hybrid composites were tested and analyzed by statistical techniques. In the present... more
This paper presents the tribological properties of silicon and oxygen incorporated diamond-like carbon coatings tested in simulated body fluid and bovine serum albumin environments. The tests were performed using a ball-on-disc tribometer... more
Electrical discharge machining (EDM) is a widely used process in the mould / die and aerospace industries. It is a process for shaping hard metals and forming deep and complex-shaped holes by arc erosion in all kinds of electro-conductive... more
In the present work, Diamond-Like Carbon (DLC) films were deposited by the Microwave Electron Cyclotron Resonance/Plasma-Assisted Chemical Vapour Deposition process on 41Cr-Al-Mo7 nitrided steel using a benzene-argon gas mixture. The... more
Currently, the application of diamond-like carbon (DLC) coatings for automotive components is becoming a favorable strategy to cope with the new challenges faced by the automotive industry. DLC coatings can effectively lower the... more
Tetrahedral amorphous carbon based coatings generally exhibit a low coefficient of friction (COF) while sliding against steel and aluminum, but their tribological properties are sensitive to the test environment. In this study,... more
Magnetron sputtered non-hydrogenated diamond-like carbon (DLC) coatings were tested against Al, Cu and Ti pins using a vacuum pin-on-disc tribometer. The objective was to compare Al, Ti, and Cu transfer to DLC coatings in air (29% RH) and... more
Magnetron sputtered non-hydrogenated diamond-like carbon (DLC) coatings were tested against Al, Cu and Ti pins using a vacuum pin-ondisc tribometer. The objective was to investigate the effect of counterface material on the tribological... more