ENGM 445 Chapter 19 Discussion Questions and Example Problems and answers verified to pass

ENGM 445 Chapter 19 Discussion Questions and Example
Problems
1. Typical sheet-metal thicknesses are between
Plate.
0.4 mm (1/64 in) and 6 mm (1/4 in). When
thickness exceeds the upper limit of this
range, the stock is usually re- ferred to as
which one of the following:
(a)bulk stock
(b)oversized
(c)plate
(d)thick sheet
Cold working (room
2. Most sheet metalworking operations are
tem- perature).
performed as:
(a)cold working
(b)hot working
(c)warm working
False. Slug is the piece.
3. In a sheet-metal cutting operation used to A
produce a
flat part with a hole in the center, the part itself is called blank is the
scrap piece.
a blank, and the scrap piece that is cut out to
make the hole is called a slug:
(a)True
(b)False

4. A circular sheet-metal piece produced in a hole punch- Die
opening.
ing operation will have the same diameter as the:
(a)die opening
(b)punch

5. In a blanking operation, as the hardness of between
the sheet metal increases, the clearance punch and
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, ENGM 445 Chapter 19 Discussion Questions and Example
Problems
die should be: Increased.
(a)decreased




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