Question 1
Two low-carbon steel plates of 10-mm thickness are butt-joined by fusion welding.
Make sketches to show the expected weld bead geometry (in cross section) and the width of
the HAZ with:
a) Oxyacetylene,
b) Electron beam
c) Shielded metal arc
d) Plasma arc welding
Question 2
Draw a sketch to show the basic design for preparing the edges of two 20-mm
thick plates to be butt-joined by shielded metal arc welding with:
a) One sided access
b) Two sided access
c) Which of the two will be (relatively) free of distortion?
Question 3
Given: Your company produces copper-clad steel sheet by hot roll bonding. A
customer complains that the cladding separated during deep drawing.
Question: You are asked to investigate your company’s procedure to make the sheet
and identify possible problems. List the likely process steps and problem areas.
Question 4
Given: It is claimed that elevated temperature is essential for creating a metallic bond in
rolling a sandwich of base metal plate and two cover plates.
Question: Do you agree? Justify.
Question 5
Given: A good weld of two 20-mm-thick steel plates is made by gas metal-arc welding .
Question: a) make a sketch of the weld bead b) suggest inspection methods for ascertaining
quality of the weld.
Question 6
Given: Many bicycle frames are constructed of steel tubing joined to hollow
fittings.
Find:
a) Suggest a way of joining the tubes.
b) Define the process
c) Make a sketch of a joint and indicate critical features.