In this paper the Friction Stir Welding process (FSW) is used to obtain a T-joint of two sheets on an extruded profile all made by AA6082-T6 aluminium alloy. The extruded profile has an appendix in the upper zone that acts both as positioning reference for the sheets and filling material. In the experiments, several PIN shapes and process parameters are investigated in order to produce a sound weld. A strict temperature control was realized by means of nine k-types thermocouples (five on the sheets and four inside the extruded profile) in order to monitor the temperatures distribution all along the joint. Several specimens were extracted from the different experimental conditions, then tensile tested, while optical microscope analysis and micro hardness measurements were performed in the cross section in order to investigate the material flow and the presence of defects.

Structural T-joint produced by means of friction stir welding (FSW) with filling material

DONATI, LORENZO;TOMESANI, LUCA;MORRI, ALESSANDRO
2009

Abstract

In this paper the Friction Stir Welding process (FSW) is used to obtain a T-joint of two sheets on an extruded profile all made by AA6082-T6 aluminium alloy. The extruded profile has an appendix in the upper zone that acts both as positioning reference for the sheets and filling material. In the experiments, several PIN shapes and process parameters are investigated in order to produce a sound weld. A strict temperature control was realized by means of nine k-types thermocouples (five on the sheets and four inside the extruded profile) in order to monitor the temperatures distribution all along the joint. Several specimens were extracted from the different experimental conditions, then tensile tested, while optical microscope analysis and micro hardness measurements were performed in the cross section in order to investigate the material flow and the presence of defects.
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/81816
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 21
  • ???jsp.display-item.citation.isi??? 18
social impact