A5016831442- Welding Techniques and Residual Stresses
- Microstructure and Mechanical Properties of Steels
- Advanced Welding Techniques Analysis
- Metal Alloys Wear and Properties
- Metal Forming Simulation Techniques
- Metallurgy and Material Forming
- Aluminum Alloys Composites Properties
- Product Development and Customization
- Advanced machining processes and optimization
- Additive Manufacturing Materials and Processes
- Manufacturing Process and Optimization
- Aluminum Alloy Microstructure Properties
- Laser and Thermal Forming Techniques
- Flexible and Reconfigurable Manufacturing Systems
- Fatigue and fracture mechanics
- Design Education and Practice
- High Entropy Alloys Studies
- Quality and Supply Management
- Non-Destructive Testing Techniques
- Titanium Alloys Microstructure and Properties
- Electric Vehicles and Infrastructure
- Injection Molding Process and Properties
- Metallic Glasses and Amorphous Alloys
- Structural Load-Bearing Analysis
- Microstructure and mechanical properties
Polytechnic University of Turin
2008-2025
Free University of Bozen-Bolzano
2012-2019
Ospedale di Bolzano
2015
Increasingly complex market dynamics due to unpredictable forecasts and shorter innovation cycles require maximum flexibility from production companies their manufacturing systems. A system should not only produce high-quality products at the lowest possible price; it also be able react quickly changes consumers preferences. After implementation in large enterprises belonging automotive sector other related sectors, concept of changeability has been introduced small medium-sized (SME). In...
Joining of aluminum alloys through friction stir welding (FSW) is effectively employed in several industries (e.g., aeronautics and aerospace) since it guarantees proper weld strength as compared to other joining technologies. Contrarily, dissimilar FSW steels often poses important issues the selection parameters due difficulty join different materials. Improper give rise formation intermetallic compounds, internal external defects tunnel formation, voids, surface grooves, flash)....
Abstract The quality of resistance spot welding (RSW) joints is strongly affected by the condition electrodes. This work develops a machine learning-based tool to automatically assess influence electrode wear on RSW welds. Two different experimental campaigns were performed evaluate effect mechanical strength resulting failure load has been used define weld classes learning tool, while data from displacement and force sensors, embedded in machine, have processed identify predictors tool....
Dissimilar resistance spot welding of twinning induced plasticity (TWIP) and quenching partitioning (Q&P) steel grades has been investigated by evaluating the effects clamping force, current, time on microstructure, shear tension strength, fracture welded samples. The TWIP Q&P steels promotes occurrence an asymmetrical weld nugget with a greater dilution because its lower melting temperature thermal conductivity. As result, nuggets exhibit austenitic microstructure. undergoes grain...
This work aims at investigating the spot weldability of a new advanced Quenching and Partitioning (Q&P) steel Transformation Induced Plasticity (TRIP) for automotive applications by evaluating effects main welding parameters on mechanical performance their dissimilar welds. The current, electrode tip voltage electrical resistance sheet stack were monitored in order to detect any metal expulsion evaluate its severity, as well clarify effect strength. joint strength was assessed means...
A widespread usage of new advanced high strength TWIP steels in the automotive industry is conditional on proper assembly operations by welding. Therefore, effects main important process parameters mechanical and microstructural properties resistance spot welded sheets are examined here. The welding used were current, clamping force, time. An L-9(33) orthogonally array was to design experimental tests. response joints assessed tensile shear tests Vickers microhardness measurements. fracture...
This study investigates the feasibility of butt friction stir welding LPBF additively manufactured FSW Scalmalloy® plates, assessing microstructural and mechanical properties joints in as-welded heat-treated conditions. The heat treatment consisted age hardening to benefit from strengthening effect Al-Sc precipitates on joint strength. influence build direction additive layers microstructure performances has also been determined. results show that plates affects neither process nor welded...
This study investigates the resistance spot welding between a quenching and partitioning (Q&P) steel transformation-induced plasticity (TRIP) steel. The effects of current, electrode force, time on microstructure mechanical properties have been assessed by shear tension hardness tests. Welding electrical parameters monitored to detect metal expulsion. An adequate strength lap-joint Q&P/TRIP spots is observed, with best (14 kN) being obtained 7.5 kA current. Metal expulsion detected for...
The need for steel materials with increasing strength is constantly growing. main application of such advanced high steels (AHSS) the automobile industry, therefore welding process different types AHSSs in dissimilar joint was investigated. To simulate mass production thin sheet constructions (such as car bodies) automated metal inert gas (MIG) used to weld TWIP (twinning induced plasticity) and TRIP (transformation sheets together. parameters were successfully optimized butt welded joints....
In recent years, quenching and partitioning (Q&P) steel sheets have been proposed for the fabrication of car body components. However, use this grade isconditional on its attitude to be assembled with other automotive grades by welding techniques. work, a Q&Psteel sheet transformation induced plasticity (TRIP) were welded together byresistance spot at varying process parameters. Particularly, effects current, clamping force, time mechanical strength Q&P/TRIP joints assessed. An L-9(33)...