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2020　Joining

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Academic unit or major
Graduate major in Mechanical Engineering
Instructor(s)
Sato Chiaki  Yamazaki Takahisa 
Class Format
Lecture    (ZOOM)
Media-enhanced courses
Day/Period(Room No.)
Mon1-2(Zoom)  
Group
-
Course number
MEC.G433
Credits
1
Academic year
2020
Offered quarter
4Q
Syllabus updated
2020/10/26
Lecture notes updated
-
Language used
English
Access Index

Course description and aims

A junction is when a binding force emerges between two parts through a joint interface. Some type of energy is used to create the binding force, and results in organization forming at the joint interface. Because the making of organization influences its reliability, security, durability, thermal resistance, and corrosion resistance as a machine, the instructor integrates modern junction techniques and products into the lecture. The instructor then covers adhesive bonding technology that is growing in importance. Specifically students learn about surface processing, selection of adhesives, mechanical design of joints, evaluation and assurance of durability, and content related to joining equipment systems, thereby learning knowledge of adhesive bonding technologies necessary for a mechanical engineer.

Student learning outcomes

Joining parts is essential for the manufacturing of industrial products. In this course, we will start by showing the big picture of joints engineering. Students will acquire general knowledge related to welding, and brazing and soldering. We will then cover glued connection technology that is of increasing importance in recent years. Students will specifically learn about surface treatment, adhesive selection, mechanical design of joints, evaluation and assurance of durability, and joining equipment systems. Students will also acquire knowledge on glued connections technology needed for mechanical engineers.
Students will gain the following knowledge by taking this course.
1. Be able to classify energy sources used for joining, and the advantages of those energy sources.
2. Understand organizational formation of joint interfaces for welding, brazing and soldering, diffusion bonding, and friction bonding, and be able to logically explain joining techniques for products.
3. Be able to explain reliability, security, durability, heat-resistance, and corrosion resistance from the interface organization state.
4. Acquire skills for surface treatment, the selection of adhesives, the mechanical design of joints, and the evaluation of durability.

Course taught by instructors with work experience

✔ Applicable How instructors' work experience benefits the course
The first half of this course (lecturer Takahisa Yamazaki) is based on the works at Surface and Interface Lab. at RIKEN and NASDA.

Keywords

Joining, Welding, Friction Welding, Surface Treating, Gluing, Interfacial Structure, Reliability, Durability, Heat Resistance, Corrosion-resistance

Competencies that will be developed

✔ Specialist skills Intercultural skills Communication skills ✔ Critical thinking skills Practical and/or problem-solving skills
✔ Assembling is an important factor in production of a high performance machine. Students learn the knowledge of joining and analyzing method to deal with the developing joining field.

Class flow

Comprised of 7 lectures that lead from knowledge in metallurgy and chemistry to mechanical engineering. Typical methods of analysis are explained.

Course schedule/Required learning

  Course schedule Required learning
Class 1 Introduction of joining (Solid State Physics) Grain Boundary, Interface
Class 2 Liquid Phase Bonding（Welding and Brazing） Energy for Fusion, Heat source, Deformation, Thermal distribution model for welding
Class 3 Solid Phase Bonding (Diffusion Bonding) and Mechanical Joining Maintenance of mechanical system
Class 4 Gluing and Surface treatment Adhesion mechanism and surface conditions
Class 5 Mechanics of adhesively bonded joints (1)(Static mechanics) Shear-Lag model
Class 6 Mechanics of adhesively bonded joints (1) ( Fatigue, Creep, Impact) Various loading conditions
Class 7 Summary Concept for joint design

Out-of-Class Study Time (Preparation and Review)

To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.

Textbook(s)

Ohnaka, Araki, Fusion and Solidification/ Removal Processing, Corona printed, 1987, ISBN4-339-04058-4.
David Brandon, Wayne D. Kaplan/ Joining Process An Introduction, WILEY, ISBN 0-471-96488-3

Reference books, course materials, etc.

Haraga ISBN 978-4-526-07000-6
Haraga ISBN 978-4-526-07156-0

Assessment criteria and methods

Students' knowledge of joining, gluing, and reliability, and their ability to apply them to problems will be assessed.
exercise problems 50% and report 50%.

Related courses

  • MEC.G211 ： Mechanical Materials
  • MEC.G311 ： Introduction to Manufacturing Engineering

Prerequisites (i.e., required knowledge, skills, courses, etc.)

Mechanical Materials

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