Meet the editors

Dr. Sadek Crisóstomo Absi Alfaro obtained a degree in Mechanical Engineering from the Federal University of Rio Grande do Sul (UFRGS), Brazil, in 1979; a master's degree in Metallurgical Engineering from the Federal University of Minas Gerai (UFMG), Brazil, in 1983; and a Ph.D. and postdoctoral degree in Welding Engineering from SIMS Cranfield University, UK, in 1989 and 1990, respectively. Since 1983, Dr. Sadek Crisostomo

Absi Alfaro has been a lecturer at Brasilia University. From 2003 to 2017, he was Full Professor in the Mechanical/Mechatronics Engineering Department, where he developed and coordinated research and development projects for undergraduate and postgraduate studies. Currently, he is a senior researcher at Brasilia University. He is a member of several national and international professional associations and the founder of the Automation and Control Group in Manufacturing Processes (GRACO) and the Mechatronics Engineering course at the University of Brasília. Dr. Sadek Crisostomo Absi Alfaro has experience in the areas of mechanical and mechatronics engineering, with emphasis on advanced manufacturing processes including welding, automation, and sensing and experimental statistics.

Dr. Wojciech Borek, Ph.D. and MSc in Engineering, is an assistant professor in the Department of Engineering Materials and Biomaterials at the Silesian University of Technology in Gliwice, Poland, and a member of the association of Polish Cluster of Innovative Forging Technologies "HEFAJSTOS." His scientific interests include materials science, heat treatment, thermomechanical treatment, plastic deformations, and Gleeble simula-

tions, especially Gleeble welding simulation. He is also a specialist in steels, stainless steel, high-manganese austenitic steels, and light metal alloys. He is an author and coauthor of around 100 scientific publications worldwide including ten chapters in books and more than thirty publications in the Web of Science database. He has won ten national and international awards and honors. Dr. Borek has served, or is currently serving, as a contractor for more than eight research and didactic projects in Poland and abroad, a reviewer of numerous scientific publications, and co-promoter of two doctoral dissertations.

Dr. Błażej Tomiczek, Ph.D. and MSc in Engineering, is an assistant professor in the Laboratory of Nanotechnology and Materials Technologies at the Faculty of Mechanical Engineering of the Silesian University of Technology in Gliwice, Poland. His scientific interests include materials science, metal matrix composites, powder metallurgy, heat treatment, laser sintering and joining methods, mechanical alloying, and pressure infiltra-

tion techniques. He is an author and co-author of around forty scientific publications worldwide, including two book chapters and more than twenty papers in the Web of Science database. He has won more than fifteen national and international awards and honors. He has experience as a manager and contractor for more than ten research projects and a co-supervisor of two doctoral dissertations.

Contents

**Section 1**

Stability on the GMAW Process

The State-of-the-Art

**Preface XI**

Automation and Control in Welding **1**

**Chapter 1 3**

**Chapter 2 27**

**Chapter 3 53**

**Chapter 4 77**

Welding Processes **101**

**Chapter 5 103**

**Chapter 6 121**

**Chapter 7 137** Hard Alloys with High Content of WC and TiC—Deposited by Arc Spraying

Vacuum Brazing of Dissimilar Joints Mo-SS with Cu-Mn-Ni Brazing

*by Stefan Lucian Toma, Radu Armand Haraga, Daniela Lucia Chicet,* 

*by Elina Mylen Montero Puñales and Sadek Crisóstomo Absi Alfaro*

Data Analysis and Modeling Techniques of Welding Processes:

*by Rogfel Thompson Martinez and Sadek Crisóstomo Absi Alfaro*

*by Guillermo Alvarez Bestard and Sadek Crisostomo Absi Alfaro*

Automatic Control of the Weld Bead Geometry

Online Measurements in Welding Processes

Overview of Selected Issues Related to Soldering *by Karel Dušek, David Bušek and Petr Veselý*

*by Guillermo Alvarez Bestard*

**Section 2**

Filler Metal

Process

*by Maksymova Svitlana*

*Viorel Paleu and Costica Bejinariu*
