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Americo Scotti

Gästprofessor

Anställd på Avdelningen för svetsteknologi.

Forskar inom området teknik, produktionsteknik.


Research area/Research interest

My main field of interest is Arc Welding Processes. I work from the basics (arc physics) to the end-use (process automation and parametric optimization). My research approach is experimental work, with application of instrumentation and statistics. I have imposed lately a great effort on heat input measurement by calorimetry and fume and gas emission from arc welding processes. As related to welding process application, I have devoted study time on experimental mitigation and determination methods of distortion and residual stresses. The latest subject of interest has been Arc Welding Additive Manufacturing.

Teaching/Supervision

I have been teaching for more than 30 years Welding Technology (arc welding processes, arc physics, distortion and residual stress, health and safety, quality assurance, instrumentation applied to weld, weldability of steels, cracking, etc.

) at different levels, such us for undergraduate, graduate (master and doctorate degree), and for International Welding Engineering courses. I have supervised tens of students (master and doctorate level) on welding technology.

Keywords

Welding Process; Instrumentation; Experimental Arc Physics; Distortion and Residual Stress; Quality Assurance.

Publikationer


Comparison of methods to correlate input parameters with depth of penetration in LASER welding

Publicerat

Comparison of methods to correlate input parameters with depth of penetration in LASER welding

Despite the industrial relevance of LASER welding, determination of sustainable parameterization is still a challenge. Trial and error, or even not...

Operational behavior of the switchback GMAW process using a mechanized rig for arc movement

Publicerat

Operational behavior of the switchback GMAW process using a mechanized rig for arc movement

Switchback Gas Metal Arc Welding (GMAW) consists of a forward and backward periodic oscillation of the welding torch in the longitudinal direction ...

A contribution to the study of negative polarity in GMA welding

Publicerat

A contribution to the study of negative polarity in GMA welding

GMAW using the electrode with negative polarity (DCEN) has been frequently suggested as a potential means of increasing production capacity. The...

Analysis of residual stresses resulting from the surface preparation for X-ray diffraction measurement

Publicerat

Analysis of residual stresses resulting from the surface preparation for X-ray diffraction measurement

There is no consensus in the literature on the need to remove preprocessing layers from the material prior to the measurement of residual stresses ...

Fiber-metal laminate panels reinforced with metal pins

Publicerat

Fiber-metal laminate panels reinforced with metal pins

Fiber-metal laminates (FMLs) are key to modern composite structures and metal-compositecoupling is crucial to improve their effectiveness. Cold-met...

Residual Stresses in Arc Welding : A Holistic Vision

Publicerat

Residual Stresses in Arc Welding : A Holistic Vision

There are several examples in current literature where assumptions regarding residual stresses are made, yet rarely confirmed in practice. To...

Active power measurement in arc welding and its role in heat transfer to the plate

Publicerat

Active power measurement in arc welding and its role in heat transfer to the plate

A contemporary paper claimed that a method using the resistance of impedance (active power) for arc power calculation is more accurate than the...

Appraisal of fiber-metal laminate panels reinforced with metal pins deposited by CMT welding

Publicerat

Appraisal of fiber-metal laminate panels reinforced with metal pins deposited by CMT welding

Avaliação da Aplicação de um Atlas de Soldagem de um Aço Bainítico Microligado ao Nióbio : Application Assessment of a Welding Atlas of a Niobium Microalloyed Bainitic Steel

Publicerat

Avaliação da Aplicação de um Atlas de Soldagem de um Aço Bainítico Microligado ao Nióbio : Application Assessment of a Welding Atlas of a Niobium Microalloyed Bainitic Steel

Os aços de alta resistência microligados ao nióbio têm mostrado ser uma boa opção para fabricação de perfis estruturais, utilizando os conceitos já...

A critical analysis of weld heat input measurement through a water-cooled stationary anode calorimeter

Publicerat

A critical analysis of weld heat input measurement through a water-cooled stationary anode calorimeter

Comprehensive models of heat transfer require specification of the total amount of heat received by the workpiece. The objective of this work was t...

A critical analysis of weld heat input measurement through a water-cooled stationary anode calorimeter

Publicerat

A critical analysis of weld heat input measurement through a water-cooled stationary anode calorimeter

A comprehensive model on heat transfer in welded plates is able to calculate the amount of heat losses from the surfaces. A model demands as input...

Influence of the CO2 Content on Operational Performance of Short-Circuit GMAW

Publicerat

Influence of the CO2 Content on Operational Performance of Short-Circuit GMAW

CO2 blended with Ar is the most common shielding gas used for short-circuit GMAW. There has been some technical knowledge devised from the process...