The active links in this
section end here. The following links in the live course lead the student to web
pages containing the assignment described in the text paragraph.
- Assignment 3: More Welding Processes
We have had a chance to look at even more welding processes from which we can
make selections when faced with challenging engineering problems. Here is a
challenging problem to try!
- Assignment 4: Physics of Welding-Weld
welding engineers are asked to use physical principles pertaining to heat source and heat
transfer efficiencies to estimate whether welds will be adequate for their intended
service. This homework will give an example.
Assignment 5: Heat Flow
The distribution of heat around the weld is important as this leads to both structural and
property changes, and results in weld residual stresses and distortion. You will
work on heat flow and temperature distributions in this assignment.
Assignment 6: Metallurgy - Tie line Changes in metallurgical structure occur as the heat of
the welding arc
passes. Knowledge of metallurgical phase diagrams and the ability to determine what
structure occur on heating and cooling is very important. Here we will look at an
iron - iron carbide diagram for a common steel.
- Assignment 7: Tempering of Martensite In this homework you will examine what happens when hard brittle
martensite is tempered with some unexpected results.
- Assignment 8: Welding Metallurgy-Cross Weld Hardness
Now let's take our metallurgy
background and apply it directly to a welding problem.
- Midterm: Click here to see some sample problems
- Assignment 9: Stress-Strain Curves Drawing and understanding a stress-strain curve is
the starting point for a
design engineer. This will give you some practice.
- Assignment 10: Joint Design We can continue on in our design experience by examining a welded joint
design in this homework problem.
- Assignment 11: Welding Symbols Welding symbols are used to communicate the results of our design
activity to welders and shop personnel who will fabricate the part. Errors in
communication result in faulty or perhaps even unsafe parts.
- Assignment 11 A: Blueprint
Often a welding engineer is called upon to make or
interpret a blue print. This exercise will give you some practice
while you design a more cost effective welded product to replace a machined
- Assignment 12: Residual Stress and Distortion
Residual stresses which cause distortion can make some parts
unfit for their intended service.
- Assignment 13: Discontinuities Welds
which have discontinuities must be examined to determine if these are too severe for
service thus becoming defects.
- Assignment 14: Codes & Standards
Most welding is performed according to code requirements.
This homework will give some experience.
- Assignment 15: NDE
After welding a part, we often need to inspect it non-destructively.