6533b86efe1ef96bd12cc834
RESEARCH PRODUCT
Single block 3D numerical model for linear friction welding of titanium alloy
Fabrizio MicariLivan FratiniDavide CampanellaGianluca BuffaDario Baffarisubject
0209 industrial biotechnologyMaterials scienceFinite element method titanium linear friction welding Ti6Al4VTitanium alloychemistry.chemical_element02 engineering and technology021001 nanoscience & nanotechnologyCondensed Matter PhysicsFinite element methodsymbols.namesake020901 industrial engineering & automationchemistryBlock (telecommunications)symbolsGeneral Materials ScienceFriction weldingComposite material0210 nano-technologySettore ING-IND/16 - Tecnologie E Sistemi Di LavorazioneLagrangianTitaniumdescription
A two-stage approach for the simulation of Linear Friction Welding is presented. The proposed model, developed using the commercial simulation package DEFORM, is 3D Lagrangian, thermo-mechanically coupled. The first phase of the process was modelled with two distinct workpieces, while the remaining phases were simulated using a single-block model. The Piwnik–Plata criterion was set up and used to determine the shifting from the dual object to the single-block model. The model, validated against experimental temperature measurements, is able to predict the main field variables distributions with varying process parameters. Titanium alpha and beta phases evolution during the whole process has been predicted and the obtained results have been correlated to the experimentally measured micro-mechanical properties of the joints.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-07-04 |