Investigations on the linear friction welding process through numerical simulations and experiments

Fratini, Livan; Buffa, Gianluca; Campanella, Davide; Spisa, Dario La

doi:10.1016/j.matdes.2012.03.058

Cited by 73 publications

(31 citation statements)

References 21 publications

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“…Consequently, during the last few years, considerable effort has been made to develop 3D LFW process models to give better process insight. For example, Fratini et al [15] used 3D models of steel workpieces to investigate the effects of the process input parameters on the weld temperature. The work showed that the temperature increases with the frequency and pressure.…”

Section: Introductionmentioning

confidence: 99%

3D modelling of Ti–6Al–4V linear friction welds

McAndrew

Colegrove

Flipo

et al. 2017

Science and Technology of Welding and Joining

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Linear friction welding (LFW) is a solid-state joining process that significantly reduces manufacturing costs when fabricating Ti-6Al-4V aircraft components. This article describes the development of a novel 3D LFW process model for joining Ti-6Al-4V. Displacement histories were taken from experiments and used as modelling inputs; herein is the novelty of the approach, which resulted in decreased computational time and memory storage requirements. In general, the models captured the experimental weld phenomena and showed that the thermomechanically affected zone and interface temperature are reduced when the workpieces are oscillated along the shorter of the two interface contact dimensions. Moreover, the models showed that unbonded regions occur at the corners of the weld interface, which are eliminated by increasing the burn-off. ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

3D modelling of Ti–6Al–4V linear friction welds

McAndrew

Colegrove

Flipo

et al. 2017

Science and Technology of Welding and Joining

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“…In order to develop the experimental campaign, a previously in-house designed and built LFW machine was equipped with measuring sensors [18]. The contact surface of the utilized specimens was 10 x 7 mm 2 [19].…”

Section: Linear Friction Weldingmentioning

confidence: 99%

Comparative analysis of bonding mechanism in solid state metal working processes

et al. 2016

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Abstract. The Piwnik and Plata pressure-time bonding criterion was applied to Friction Stir Welding, Linear Friction Welding, Porthole Extrusion and Roll Bonding. A neural network was set up, trained and used to predict the bonding occurrence starting from the main field variable distributions calculated through specific numerical models developed for each process. The analysis of the results permitted to predict the occurrence of solid bonding and to highlight differences and analogies between the processes in order to obtain sound solid welds.

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“…Numerical simulation of LFW applications has been studied in recent years using a variety of CAE packages [11,34,35,36,37,38]. As the heating produced by the shearing and deformation of the material is significant, the process must be modelled as a fully coupled thermal-mechanical analysis.…”

Section: Case Study 1: Simulation Of Residual Stress In Linear Frictimentioning

confidence: 99%

Introduction of Materials Modelling into Processing Simulation

Guo

Turner

Silva

et al. 2013

MSF

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The introduction of materials modelling into computer-aided engineering (CAE) processing simulation has become popular in recent years, whereas the fundamental challenge lies in the development of material models that can calculate the properties essential for processing design and simulation. This paper reviews the recent development of such models and the material data that can be calculated include physical, thermophysical, and mechanical properties, as well as phase transformation kinetics. The calculated material data has been used as input to numerous CAE packages for the simulation of casting, welding, forming and heat treatments. Two case studies are presented here, one on the simulation of residual stress in linear friction welding of titanium alloys, and the other on the prediction of distortion and residual stress in heat-treated large steel rings.

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Investigations on the linear friction welding process through numerical simulations and experiments

Cited by 73 publications

References 21 publications

3D modelling of Ti–6Al–4V linear friction welds

3D modelling of Ti–6Al–4V linear friction welds

Comparative analysis of bonding mechanism in solid state metal working processes

Introduction of Materials Modelling into Processing Simulation

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