MECH ENG 4126 - Topics in Welded Structures

North Terrace Campus - Summer - 2023

This course presents the concepts behind welding and joining technology. These include welding and joining techniques, equipment and consumables, weldability of engineering materials, economics, standards, health and safety, testing and repair. The concepts are then applied to the design and fabrication of engineering components, process plant and structures. The importance of selecting the correct welding process and parameters for a particular application will be demonstrated by investigating several case studies. Since a weld/joint can have a profound effect on the performance of a component depending on the in-service conditions it experiences, the influence of service environment will be investigated. At the end of the course students should have the concepts to assist in the selection of processes and parameters to make appropriately designed, sound joints, fit for service in the operating environment.

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Course Details

Course Code	MECH ENG 4126
Course	Topics in Welded Structures
Coordinating Unit	School of Mechanical Engineering
Term	Summer
Level	Undergraduate
Location/s	North Terrace Campus
Units	3
Contact	Intensive - 10 days
Available for Study Abroad and Exchange	Y
Assumed Knowledge	MECH ENG 2020
Assessment	Assignments, Lab experiments, Final exam

Course Staff

Course Coordinator: Dr Reza Ghomashchi

Course Timetable

The full timetable of all activities for this course can be accessed from Course Planner.

Course Learning Outcomes

On successful completion of this course students will be able to:

1	Demonstrable knowledge of a range of welding processes, consumables and equipment and the capacity to select an appropriate welding process for a particular application ;
2	Analytical methods for understanding the variables for a range of welding process;
3	Recognise the importance of economic, environmental and occupational health and safety factors when considering the application of a welding process;
4	Explain the effects of welding on the properties of a range of materials including high strength steels;
5	Design welded structures for specific applications and environments
6	Explain the effects of welding on the residual stresses and distortion within the welded structure.
7	Outline the Australian and International Standards to which the design and manufacture of a particular structure must comply;
8	Identify the record keeping requirements for compliance to Australian and International Standards for welded joints, welded structures, welding processes, welding consumables, welding personnel and welding inspection;
9	Assess possible failure modes for the structure and their implications'
10	Apply and communicate the concepts provided to new situations and to read and understand professional articles on the subject;

The above course learning outcomes are aligned with the Engineers Australia Stage 1 Competency Standard for the Professional Engineer.
The course is designed to develop the following Elements of Competency:

University Graduate Attributes

This course will provide students with an opportunity to develop the Graduate Attribute(s) specified below:

University Graduate Attribute	Course Learning Outcome(s)
Attribute 1: Deep discipline knowledge and intellectual breadth Graduates have comprehensive knowledge and understanding of their subject area, the ability to engage with different traditions of thought, and the ability to apply their knowledge in practice including in multi-disciplinary or multi-professional contexts.	3 - 9
Attribute 2: Creative and critical thinking, and problem solving Graduates are effective problems-solvers, able to apply critical, creative and evidence-based thinking to conceive innovative responses to future challenges.	3, 6, 9, 10
Attribute 3: Teamwork and communication skills Graduates convey ideas and information effectively to a range of audiences for a variety of purposes and contribute in a positive and collaborative manner to achieving common goals.	10
Attribute 4: Professionalism and leadership readiness Graduates engage in professional behaviour and have the potential to be entrepreneurial and take leadership roles in their chosen occupations or careers and communities.	1 - 10

Learning Resources
Required Resources
- Extensive lecture notes are provided. The purchase of text-books is not necessary for the successful completion of this course though it is encouraged for extra learning.
- Electronic copies of the lecture notes as well as any additional material provided in-class will be available through the online MyUni system.
Recommended Resources
Many suitable text-books are available for further reading through the University of Adelaide Library, and are available for purchase from text-book suppliers.

Recommended reading:
- Welding Metallurgy, 2nd Edition Sindo Kou ISBN: 978-0-471-43491-7
- Applied Welding Engineering , Ramesh Singh ISBN: 978-0-12-391916-8
Online Learning

Electronic copies of the lecture notes as well as any additional material provided in-class will be available through the online MyUni system. Extended study material will also be provided through the online system for students keen to gain further knowledge and application.
Learning & Teaching Activities
Learning & Teaching Modes

Teaching will conducted through a series of lectures, practical session’s industry workshops.

Assignments and in-class quizzes are provided as part of the learning experience. Students are expected to enhance their knowledge, problem solving skills and understanding of the subject matter through completing the assignments and quizzes, so they are regarded as formative rather than summative. The assignments and quizzes are marked, with the mark contributing to the final grade for the subject to ensure that students actually do the assignments and quizzes and take them seriously. It also helps to assess whether the required graduate attributes are being developed.

The laboratory class is intended to provide students with some practical experience in using welding techniques. The examination is a summative assessment and is intended to assess the student’s knowledge and understanding of the course material and how it fits into the global engineering context.

Workload

The information below is provided as a guide to assist students in engaging appropriately with the course requirements.

This intensive course will consist of 50 contact hours. Students are expected to match these hours with an equivalent of self-study hours.

Learning Activities Summary
- Day 1: Welding Processes
  
  Introduction/ Overview
  
  Welding Process Fundamentals
- Day 2: Metallurgy of the welding of metals
  
  Overview - types of materials, structure and properties of metals, phase diagrams, strengthening mechanisms
  
  Steels - metallurgy, and heat-treatment, carbon equivalent, weldability index
  
  Welding of alloy steels, characteristics and effects of alloying elements
  
  Welding of Q&T steels
  
  Welding of stainless steels
  
  Welding of aluminium and its alloys
  
  Welding of cast irons
  
  Wear resistant materials and hard facing
- Day 3: Welding Specification
  
  Welder qualification
  
  Weld qualification and consumables
  
  Weld procedures
  
  PQR
  
  Welding Economics
  
  Processes
  
  Skill level
  
  Consumables
  
  Risk management
- Day 4: Welding Processes Workshop
- Day 5: Tutorials and Assignment
- Day 6: Design requirement
  
  Structural design and analysis
  
  Primary stresses
  
  Residual stresses
  
  Undermatching, overmatching, matching to base material
- Day 7: Failure modes
  
  Environment
  
  Consequences of Failure
  
  Weld repair
  
  Health and safety
  
  Electrocution
  
  Fume
  
  Confined spaces
- Day 8: NDT
- Day 9: Workshop
- Day 10: Tutorials and Assignment 2

The University's policy on Assessment for Coursework Programs is based on the following four principles:

Assessment must encourage and reinforce learning.
Assessment must enable robust and fair judgements about student performance.
Assessment practices must be fair and equitable to students and give them the opportunity to demonstrate what they have learned.
Assessment must maintain academic standards.

Assessment Summary

Assessment Task	Weighting (%)	Individual/ Group	Formative/ Summative	Due (week)*	Hurdle criteria	Learning outcomes
Workshops	10
Tutorials and assignments	20
Final exam	70
Total	100

* The specific due date for each assessment task will be available on MyUni.

This assessment breakdown complies with the University's Assessment for Coursework Programs Policy.

Open book, 3 hours, 1 week after completion of second week

Assessment Detail

No information currently available.

Submission

No information currently available.

Course Grading

Grades for your performance in this course will be awarded in accordance with the following scheme:

M10 (Coursework Mark Scheme)
Grade	Mark	Description
FNS		Fail No Submission
F	1-49	Fail
P	50-64	Pass
C	65-74	Credit
D	75-84	Distinction
HD	85-100	High Distinction
CN		Continuing
NFE		No Formal Examination
RP		Result Pending

Further details of the grades/results can be obtained from Examinations.

Grade Descriptors are available which provide a general guide to the standard of work that is expected at each grade level. More information at Assessment for Coursework Programs.

Final results for this course will be made available through Access Adelaide.

Student Feedback

The University places a high priority on approaches to learning and teaching that enhance the student experience. Feedback is sought from students in a variety of ways including on-going engagement with staff, the use of online discussion boards and the use of Student Experience of Learning and Teaching (SELT) surveys as well as GOS surveys and Program reviews.

SELTs are an important source of information to inform individual teaching practice, decisions about teaching duties, and course and program curriculum design. They enable the University to assess how effectively its learning environments and teaching practices facilitate student engagement and learning outcomes. Under the current SELT Policy (http://www.adelaide.edu.au/policies/101/) course SELTs are mandated and must be conducted at the conclusion of each term/semester/trimester for every course offering. Feedback on issues raised through course SELT surveys is made available to enrolled students through various resources (e.g. MyUni). In addition aggregated course SELT data is available.
Student Support
Policies & Guidelines
This section contains links to relevant assessment-related policies and guidelines - all university policies.
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Students are reminded that in order to maintain the academic integrity of all programs and courses, the university has a zero-tolerance approach to students offering money or significant value goods or services to any staff member who is involved in their teaching or assessment. Students offering lecturers or tutors or professional staff anything more than a small token of appreciation is totally unacceptable, in any circumstances. Staff members are obliged to report all such incidents to their supervisor/manager, who will refer them for action under the university's student’s disciplinary procedures.

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Authorised by:	Deputy Vice-Chancellor and Vice-President (Academic)
Maintained by:	Course Outlines Administrator