EDMM 1500 EXAM 3 UPDATED QUESTIONS AND VERIFIED
ANSWERS
Sheet metal - CORRECT ANSWER✅✅✅metal formed by an industrial process into thin, flat pieces?
shearing - CORRECT ANSWER✅✅✅Sheet metal operation that involved removing blank from a coil
or sheet?
compound shearing die - CORRECT ANSWER✅✅✅Shearing process used in a single die operation
which produces blanks to close dimension and flatness tolerances
progressive shearing die - CORRECT ANSWER✅✅✅shearing process used in a multiple station
operation from parts that are made from ominous coil stock?
Press Brake - CORRECT ANSWER✅✅✅A machine that preforms predominate bends in sheet metal
by clamping the workspace between a matching punch and typically a V shaped die?
bending - CORRECT ANSWER✅✅✅forming a blank across one direction in sheet metal forming?
Bending stress - CORRECT ANSWER✅✅✅Measured by dividing the neutral axis over thickness (K
factor)
When the bend is parallel to the direction of rolling (bad) - CORRECT ANSWER✅✅✅When does
cracking occurring in regards to bending?
Spring back - CORRECT ANSWER✅✅✅occurs when a metal is bend and it tries to return to the
original shape?
Roll Forming - CORRECT ANSWER✅✅✅Type of forming that is first generated by a computer and
then goes through a continuous bending process until a desired cross section is achieved created
complex shapes?
, Stretch forming - CORRECT ANSWER✅✅✅Type of forming that makes stuff like aircraft skin?
formability - CORRECT ANSWER✅✅✅Sheet metals ability to form into desired shapes without
defects in finished part
Types of deformation - CORRECT ANSWER✅✅✅What are bending, stretching, and drawing?
Deep Drawing - CORRECT ANSWER✅✅✅A drawing operation where the blank is pulled into a die by
a moving punch to produce a 3d shape such as a bath tub. Essentially the flat sheets are shaped into cup
shaped articles in this process.
Blanking - CORRECT ANSWER✅✅✅metal fabricating process, during which a metal work piece is
removed from the primary metal strip or sheet when it is punched
Re- Drawing - CORRECT ANSWER✅✅✅process that reduces diameter of drawn object and increases
height
Deep Drawing - CORRECT ANSWER✅✅✅a process in which a blank is forced into or through a die by
a punch to form a hollow component that has essentially the same thickness as the original material
onset of wrinkling or fracture - CORRECT ANSWER✅✅✅In deep drawing what limits depth?
Lubricate the die - CORRECT ANSWER✅✅✅How do we reduce friction in drawing?
Improper blank holder pressure - CORRECT ANSWER✅✅✅In deep drawing what causes fracture and
wrinkling?
The cupping test - CORRECT ANSWER✅✅✅Determines the strength of sheet metal and direction of
flow (anisotropy)
ANSWERS
Sheet metal - CORRECT ANSWER✅✅✅metal formed by an industrial process into thin, flat pieces?
shearing - CORRECT ANSWER✅✅✅Sheet metal operation that involved removing blank from a coil
or sheet?
compound shearing die - CORRECT ANSWER✅✅✅Shearing process used in a single die operation
which produces blanks to close dimension and flatness tolerances
progressive shearing die - CORRECT ANSWER✅✅✅shearing process used in a multiple station
operation from parts that are made from ominous coil stock?
Press Brake - CORRECT ANSWER✅✅✅A machine that preforms predominate bends in sheet metal
by clamping the workspace between a matching punch and typically a V shaped die?
bending - CORRECT ANSWER✅✅✅forming a blank across one direction in sheet metal forming?
Bending stress - CORRECT ANSWER✅✅✅Measured by dividing the neutral axis over thickness (K
factor)
When the bend is parallel to the direction of rolling (bad) - CORRECT ANSWER✅✅✅When does
cracking occurring in regards to bending?
Spring back - CORRECT ANSWER✅✅✅occurs when a metal is bend and it tries to return to the
original shape?
Roll Forming - CORRECT ANSWER✅✅✅Type of forming that is first generated by a computer and
then goes through a continuous bending process until a desired cross section is achieved created
complex shapes?
, Stretch forming - CORRECT ANSWER✅✅✅Type of forming that makes stuff like aircraft skin?
formability - CORRECT ANSWER✅✅✅Sheet metals ability to form into desired shapes without
defects in finished part
Types of deformation - CORRECT ANSWER✅✅✅What are bending, stretching, and drawing?
Deep Drawing - CORRECT ANSWER✅✅✅A drawing operation where the blank is pulled into a die by
a moving punch to produce a 3d shape such as a bath tub. Essentially the flat sheets are shaped into cup
shaped articles in this process.
Blanking - CORRECT ANSWER✅✅✅metal fabricating process, during which a metal work piece is
removed from the primary metal strip or sheet when it is punched
Re- Drawing - CORRECT ANSWER✅✅✅process that reduces diameter of drawn object and increases
height
Deep Drawing - CORRECT ANSWER✅✅✅a process in which a blank is forced into or through a die by
a punch to form a hollow component that has essentially the same thickness as the original material
onset of wrinkling or fracture - CORRECT ANSWER✅✅✅In deep drawing what limits depth?
Lubricate the die - CORRECT ANSWER✅✅✅How do we reduce friction in drawing?
Improper blank holder pressure - CORRECT ANSWER✅✅✅In deep drawing what causes fracture and
wrinkling?
The cupping test - CORRECT ANSWER✅✅✅Determines the strength of sheet metal and direction of
flow (anisotropy)
