Credits: 5

Schedule: 09.04.2018 - 21.05.2018

Teaching Period (valid 01.08.2018-31.07.2020): 

V

Learning Outcomes (valid 01.08.2018-31.07.2020): 

After the course the student can:

-Identify the main joining mechanisms within welding technology;

-Address the fundaments of physics of electric arc and metallic transference in electric arc welding;

-Implement an applicability analysis of SMAW + SAW + GTAW + PAW + GMAW + FCAW + LW + EBW + Hybrid joining techniques

-Address the fundaments of solid state welding techniques and joining techniques for advanced materials: polymers; ceramics; composites;

-Make a weldability analysis based on the welding metallurgy;

-Apply the fundaments of design of welded structures

Content (valid 01.08.2018-31.07.2020): 

Welding technology plays a critical role in almost every industry sector - is critical to the world’s ability to cope with the continuous development demands. Whether joining the smallest bio implants or welding the world’s biggest components, welding makes significant contributions to the global quality of life. Welding technologies, whether conventional or advanced, and welding engineers and operators, are thus vital elements to improved quality of life for all. In fact there is a huge demand for welders in the industry. Welding is an extremely important component to many industries in Finland and worldwide. In fact, without specialized know-how on welding, many construction projects, bridge building, vehicle manufacturing processes, computer electronics plants, plastics manufacturing and even our space program would come to a standstill.

In the present course, the fundaments of welding and joining by fusion and solid state are reviewed preparing the students for the introduction of the most relevant developments and recent innovations in the welding technology. The fundaments on the welding metallurgy and design of welded structures will also be assessed.

Assessment Methods and Criteria (valid 01.08.2018-31.07.2020): 

Examination (70 %)

Laboratorial Exercises (30 %)

Workload (valid 01.08.2018-31.07.2020): 

  • Lecture = 21 h
  • Independent work = 50 h
  • Laboratorial exercises =40
  • Preparation for exam = 26

Study Material (valid 01.08.2018-31.07.2020): 

Main:

-Robert W. Messler, Jr. - Principles of Welding – Processes Physics, Chemistry, and Metallurgy (ISBN-13: 978-0-471-25376-1)

-Welded Joint Design (3rd edition), John Hicks. Woodhead Publishing Ltd. 1999 (ISBN-1-85573386-2).

Other:

-ASM Metals Handbook – Vol. 6 – Welding Brazing and Soldering. 1993. ASM International.

-AWS Welding Handbook – Vol. 1 to 4 – 8th and/or 9th edition. American Welding Society.

-Pedro Vilaça, Wayne Thomas, “State-of-the-art in FSW technology”. Chapter 4 of book: “Structural Connections for Lightweight Metallic Structures”. pp. 85-124. ISBN 978-3-642-18186-3, Springer.

-Eurocode 3: Design of steel structures. Part 1-1 (General rules and rules for buildings) and Part 1-8 (Design of joints)

Substitutes for Courses (valid 01.08.2018-31.07.2020): 

Kon-67.4200 

Kon-67.4201 

Kon-67.4210 

Kon-67.4211

Prerequisites (valid 01.08.2018-31.07.2020): 

Engineering Materials

Grading Scale (valid 01.08.2018-31.07.2020): 

0-5

Registration for Courses (valid 01.08.2018-31.07.2020): 

WebOodi

Further Information (valid 01.08.2018-31.07.2020): 

Content in-detail:

Introduction to welding technology:

-Nomenclature;

-Historical Evolution.

Welding Processes Short Presentation:

-Joining Mechanisms;

-Allied Technologies (e.g. cutting and coating).

Electric Arc Physics.

Metal Transference in Arc Welding Physics.

Electric Arc Welding Processes (fundaments and variants):

-SMAW: SAW; GTAW; PAW; GMAW; FCAW

High Power Density Welding Processes:

-Process Laser Welding and Cutting;

-Process Electron Beam.

Solid State Welding Processes (fundaments and processes):

-Flash, Stud, High Frequency;

-Cold Pressure; Ultrasonic; Diffusion;

-Explosion (Coating and Cutting);

-Friction Welding;

-Friction Stir Welding and Variants

Joining of Advanced Materials:

-Adhesives Technology for Metals and Polymers;

-Other Joining Techniques for Polymers;

Fundaments of welding metallurgy.

Fundaments of design of welded structures: Static loads.

-Introduction and Principles

-Stresses in Structures

-Design of Welds and Joints

Residual Stress and Deformation

Description