MAE 272 Midterm 2 Questions with
Complete Solutions
Which are traditional joining processes All but water jet
minimum bend radius for AA 7075-O is 0
Centrifugal forces can be used to cast hollow and solid objects
Spin casting uses inertia forces to produce: Ferrous and non-ferrous solid and hollow parts
Risers help none of the above
Casting can be used to manufacture high volume production parts
In sheet metal fab, anisotropy can Cause variations of properties in different directions
Superalloy and nickel based alloys vacuum casting using ceramic molds
, Cam shafts in a 16-valve 4-cylinder engine can be turned on high speed CNC machining
centers
Engine hoods, fenders, boot lids, etc., of mid-size SUVs are usually: Stretched formed
and/or deep drawn
Progressive dies are preferred over compound dies due to Simpler design and low
maintenance cost
Tolerances will vary less during production due to raw materials consistency
By agreement, sheet metals are defined as such: when one dimension is less than 2.5 mm,
and much smaller the other two
EDM can produce very large parts with cycle time 60-90 pieces/min that are none of the
following
Hardness increase during machining can all are correct
Complete Solutions
Which are traditional joining processes All but water jet
minimum bend radius for AA 7075-O is 0
Centrifugal forces can be used to cast hollow and solid objects
Spin casting uses inertia forces to produce: Ferrous and non-ferrous solid and hollow parts
Risers help none of the above
Casting can be used to manufacture high volume production parts
In sheet metal fab, anisotropy can Cause variations of properties in different directions
Superalloy and nickel based alloys vacuum casting using ceramic molds
, Cam shafts in a 16-valve 4-cylinder engine can be turned on high speed CNC machining
centers
Engine hoods, fenders, boot lids, etc., of mid-size SUVs are usually: Stretched formed
and/or deep drawn
Progressive dies are preferred over compound dies due to Simpler design and low
maintenance cost
Tolerances will vary less during production due to raw materials consistency
By agreement, sheet metals are defined as such: when one dimension is less than 2.5 mm,
and much smaller the other two
EDM can produce very large parts with cycle time 60-90 pieces/min that are none of the
following
Hardness increase during machining can all are correct
