Rolling contact fatigue is a unique mode of that components under cyclic loading experience. In this work, the impact induction hardening residual stresses in rolling lifetime investigated experimentally and numerically using Dang Van multiaxial criterion. Various stress fields from are simulated finite element method mapped into classical mono-contact model. The hardened on component has been investigated, importance incorporating profile life assessments affirmed.

Abstract Induction hardening is a heat treatment that has been increasingly employed in the industry recent years. It complex, highly coupled, and multiphysical process involving electromagnetism, thermal, mechanical, metallurgical physics. One of main quality requirements hardened case depth generated workpiece. The usual method to measure ensure parts use destructive techniques, which generate material energy waste production inefficiencies. Additionally, selecting parameters such as...

The data included in this study was calculated based on provided by the national project registry Colombian government. forecasts evolution of power generation capacity registered non-conventional renewable energy source projects three scenarios implementation projects. Results can be used to benchmark sources Colombia, interpret effectiveness policies, and monitor renewable-based generation. presented article relates research study: A look electricity from Colombia [1].

This paper describes a new design methodology for long life and large size (Ll-Ls) product assembly, which has been developed modifying merging existing Design Assembly (DfA) methodologies to adapt them the particularities of this kind products. These goods are often formed by different heavy subcomponents that need be assembled commissioned on field, require use several people or special machinery, aspects not considered in traditional DfA methodologies. The methodology, through Lucas-Hull...

This paper presents an integrative approach to the design for assembly (DfA) methodologies, adapting these particularities of elevation industry. A friendly tool in form software has been developed implementing proposed and methodology. study case elevator counterweight presented show test advantages new tool. Improvements approximately 7.9 percentage points effort have obtained following approach.

Abstract This paper presents a new design methodology for improving the installation of large size and long life cycle goods that need to be assembled in field. The approach integrates modified assembly (DfA) methodology. A is proposed integrating different DfA methodologies tested real case study machine room-less (MRL) elevator. tool analyzing quantifying solutions developed. Improvements approximately 20 pp are achieved during elevator on-site process, which could mean potential reduction...

Non-Destructive Testing (NDT) technology known as Acoustic Emission (AE) has been used to investigate the phase transformation of 42CrMo4 steel in a cylinder during an induction hardening process. The objective this study is characterize martensitic material using data obtained by AE sensor heating process carried out statically, focusing heat on area be treated and then analyzing it. After quenching, destructive tests are determine hardness three-dimensional geometry microstructure after...

Laser welding has become increasingly popular in recent decades due to its high processing speed and minimal heat-affected zone, which contribute extended component lifetimes. However, the adoption of this advanced technique is often hindered by a lack skilled personnel associated with traditional limited awareness potential. This study proposes straightforward methodology for developing finite element-based thermal model laser welding, incorporating two-step experimental calibration...

Induction hardening is a heat treatment process that enhances the mechanical properties of materials, improving their resistance to fatigue, fracture, and wear. Unlike conventional methods, induction selectively heats surface material, forming high-hardness layer while leaving core relatively unaffected. In addition, it generates compressive residual stress in surface, which beneficial for component service behaviour. This progressively decreases, turning tensile at boundary hardened layer,...

The data presented in this article was used to assess and compare the most important methods estimate efficiency during operation of induction motors at different loads power supply conditions. experiment developed a test bench including three-phase motor 1.1 kW (De Lorenzo DL 1021). In addition, an adjustable voltage source, variable-frequency drive, resistor, magnetic powder brake control unit regulate load were experiments. A quality energy analyzer (Fluke 435 series 6) measure electric...