HYBRID WELDING LABORATORY- FABBRICATION OF WELDED JOINTS WITH HYBRID TECHNOLOGIES GIUNTI SALDATI CON  TECNOLOGIE IBRIDE

Hybrid Laser/Arc, Friction Stir Welding/Laser and Friction Stir Welding/Arc welding of innovative and high performance materials (refractory metals, light alloys, sintered metals, metals, shape memory alloys, titanium, etc.).

A Hybrid welding is the union of two different welding technologies finalized to synergic effects: the maximization of the technological limits of weldability and the optimization of the advantages of the single source welding technology for high performances applications. The target is to investigate the weldability of advanced materials and heterogeneous joints using laser, electric arc, and Friction Stir Welding (FSW) combined and stand alone.

EQUIPMENTS OF THE TISMA LAB R.U.1

 

RESIDUAL STRESS LABORATORY - CHARACTERIZATION OF WELDED JOINTS

Residual stress (RS) develops during manufacturing processes as a result of heat and mechanical treatment experienced by the material. Welding process generates RS in welded parts and this could lead to some problems in terms of dimensional stability and structural integrity. Under working condition, the RS combines with the stress field produced by external loads, changing the distribution of stress and influencing the structural stability and resistance to fatigue and fracture of the structure. The experimental evaluation of the RS (really difficult to predict) is very important for a proper design. Complete equipment for RS measurement on real welded components are available. We are able to perform measurements on site.

EQUIPMENTS OF THE TISMA LAB R.U.2

X-Ray Diffractometer

Stereomicroscope

Thermal Imaging Camera

 

R.U.3 - Università del Salento - CAPACITOR DISCHARGE WELDING STATIC/FATIGUE MECHANICAL TESTING

In the UR3 unit, the research is based on welding methods with CDW technology, using Capacitor Discharge machine and non destructive controls based on ultrasound techniques to analyze the weld quality. Static and fatigue tests are executed on welded specimens in different loading conditions, for both hybrid technology and CDW welded joints. Statistical analysis of experimental data.

EQUIPMENTS OF THE TISMA LAB R.U.3