Abstract This work deals with the development of a new tribometer designed for characterisation frictional properties at tool/chip/workpiece interfaces in cutting processes. Based on plane–sphere contact configuration, experimental set‐up enables continuous regeneration pin–workmaterial contact. The average pressure can be selected up to 3 GPa under sliding velocities reaching 16 m/s. Under such severe conditions, which are not reachable conventional tribometers, apparent friction...

Abstract This paper aims at characterizing the frictional behaviour cutting tool-workmaterial interface during dry machining of a Inconel 718 in its aged state with various coated carbide tools and c-BN tools. A specially designed open tribometer has been used to characterize friction coefficient, heat partition coefficient under extreme conditions corresponding ones occurring cutting. The provides evolution apparent for large range sliding velocity contact pressure. It shown that as well...

This study addresses the sensitivity of material removal regimes in 5083-aluminum alloy to interaction mechanisms generated during multi-scratch test (MST). A testing device using three conical indenters was firstly developed. Four attack angles and four normal loads ranging, respectively, from 10–60° 10–25 N, were considered for conducting experimental trials. The scratch velocity kept constant 210 mm min− 1 maximum distance 25 mm. model, developed upon ABAQUS/Explicit, uses Johnson–Cook...

This work deals with the identification of a new friction model for high speed dry cutting AISI4142 steel TiN coated carbide tools. Both experimental and numerical studies were used to find relationship between coefficient, sliding velocity, contact pressure temperature. A tribometer, based on plane-sphere configuration, has been developed reach extreme conditions similar ones occurring during metal cutting. The apparent provided by ratio tangential normal forces, is measured. It assumed...

Unsuitable surface quality is frequently observed in the machining of composites due to their heterogeneity and anisotropic properties. Thus, minimizing damages requires a thorough understanding process. In this study, two different finite element models were developed using Abaqus/Explicit simulate cutting process unidirectional carbon fiber-reinforced polymer: (i) macromechanical model based on homogenization approach (ii) micromechanical which composite constituents treated separately....

Additive Manufacturing (AM) has emerged as an innovative technology that gives designers several advantages, such geometric freedom of design and less waste. However, the quality parts produced is affected by different manufacturing parameters, part orientation, nozzle temperature speed, support material, layer thickness. In this context, thickness considered important AM parameter affecting accuracy. Thus, in paper, a new adaptative slicing method based on cusp vector surface deviation...

Abstract In this study, the micromechanical scratch behavior of unidirectional glass fiber reinforced polyester (GFRP) using several wear conditions was highlighted. Single-indenter tests (SSTs) were carried out on GFRP composite material perpendicular (SST ⊥ ) and parallel // to direction. Damage modes dominating removal process (MRP) friction exhibit significant sensitivity both attack angle normal load. From findings, damage apparent coefficient substantially accentuate when increasing...

In this paper, a 2D orthogonal cutting of hardened AISI52100 steel is developed to investigate the influence process parameters (CPP) on white layer (WL) thickness. A finite element model (FEM) based phase transformation mechanism and takes into account mechanical effects adopted predict WL depth. Several numerical simulations are performed in various conditions tool geometry, flank wear, material properties, conditions. The predicted results forces, chip morphologies, depth physically...

This study addresses the effects of roughness anisotropy in tribological behavior AA5083. Wear tests were carried out using a reciprocating tribometer under contact pressure 200 MPa. Sliding was performed on three topographic orientations. The friction force recorded instantaneously. Furthermore, microscopic analyses conducted for purpose characterizing wear mechanisms. findings proved sensitivity and initial surface properties. A numerical model reciprocated test was, addition, developed...

Drilling is the most widely used machining process in manufacturing holes many industrial applications. Optimizing drilling a key to improve hole quality. Therefore, numerical modeling an effective method that gives idea about cutting optimize parameters. This paper emphasizes sensitivity of thrust force, torque and machining-induced damage saw tool geometry using 3D Finite Element (FE) model developed ABAQUS/Explicit. A Johnson cook associated with ductile law predict failure mechanism...