EDMM 1500 Test 2 Questions and Answers Latest Update 2025-2026
What are 4 ways that sheet metal forming is used? - Answers Building construction,
transportation, appliances, and cans
What are the 4 main processes for sheet metal forming? - Answers Sheering, Bending, Roll
Forming, & Stretching
What is shearing? - Answers removing blank from coil or sheet.
Shearing has ____________ action only. - Answers punch
What does shearing reduce? - Answers tonnage
What is a downfall of shearing? - Answers expensive tooling cost
What is bending? - Answers forming a blank along one direction, the bend axis.
Name one benefit of bending. - Answers Benefit: interchangeable low tooling cost
Name two downfalls of bending. - Answers Labor intensive, bends parallel to direction of rolling
can crack
What is springback? - Answers Part shape is overcompensated in bending because the metal
will deform after coming off the line.
What doe springback increase with? - Answers Thickness, smaller bend radius, and high
strength alloys.
What is roll forming? - Answers Taking a metal sheet, and "rolling" it through a profile.
Complexity dictates the number of rolls.
What are some benefits of roll forming? - Answers Gentle of metal, minimum wear on tooling
In complex forming, what does progressive forming depend on? - Answers size, complexity, &
volume
Are progressive forming dies at a high or low cost? - Answers High
What does deep drawing do? - Answers A blank is pulled into a die by moving a punch to
produce a 3D shape, this thins the metal.
What are the 3 classifications of casting? - Answers 1. Expandable mold reusable pattern
2.Expandable mold expandable pattern
3. Permanent mold no pattern
What is a benefit of expandable mold reusable pattern? - Answers cheap to make
, How are expandable mold reusable pattern castings made? - Answers Through chemically
bonded sand systems.
What are expandable mold expandable pattern castings also known as? - Answers investment
casting or lost wax
What do you do with expandable mold expandable pattern casting when you're done? - Answers
Throw it away
How long does a die casted permanent mold no pattern take to make? - Answers 15-30 seconds
What is made from centrifugal permanent mold no pattern casting? - Answers Pipes
What are the 4 key factors in casting? - Answers 1. Flow of the molten material into the cavity
2. How it solidifies
3. The cooling rate
4. Type of material
What does a gentle molten metal flow entail? - Answers minimizes gas and sand entrapment
What does a rapid molten metal flow entail? - Answers preclude freezing before filling
What does a diversionary molten metal flow entail? - Answers skims off or filter the slag and
contaminants
What is Chvorinov's rule? - Answers chunky shapes solidify more slowly than think intricate
shapes.
What is green sand made out of? - Answers recycled sand, water, and a small amount of clay
What is green sand castings tooling cost? - Answers Low
Explain shell molding. - Answers Clean sand coated with thermosetting resin, has a moderate
tooling cost.
Explain foam casting. - Answers Vibrate loose sand off foam patterns, pour molten material into
mold which vaporizes the pattern.
Describe the tooling cost and cycle time of foam casting. - Answers High tooling cost and long
overall cycle.
Why does a permenant mold have a high tooling cost? - Answers Complex with high heat and
pressure as well as over 100,000 parts.
What does true centrifugal casting make? - Answers iron pipes
What are 4 ways that sheet metal forming is used? - Answers Building construction,
transportation, appliances, and cans
What are the 4 main processes for sheet metal forming? - Answers Sheering, Bending, Roll
Forming, & Stretching
What is shearing? - Answers removing blank from coil or sheet.
Shearing has ____________ action only. - Answers punch
What does shearing reduce? - Answers tonnage
What is a downfall of shearing? - Answers expensive tooling cost
What is bending? - Answers forming a blank along one direction, the bend axis.
Name one benefit of bending. - Answers Benefit: interchangeable low tooling cost
Name two downfalls of bending. - Answers Labor intensive, bends parallel to direction of rolling
can crack
What is springback? - Answers Part shape is overcompensated in bending because the metal
will deform after coming off the line.
What doe springback increase with? - Answers Thickness, smaller bend radius, and high
strength alloys.
What is roll forming? - Answers Taking a metal sheet, and "rolling" it through a profile.
Complexity dictates the number of rolls.
What are some benefits of roll forming? - Answers Gentle of metal, minimum wear on tooling
In complex forming, what does progressive forming depend on? - Answers size, complexity, &
volume
Are progressive forming dies at a high or low cost? - Answers High
What does deep drawing do? - Answers A blank is pulled into a die by moving a punch to
produce a 3D shape, this thins the metal.
What are the 3 classifications of casting? - Answers 1. Expandable mold reusable pattern
2.Expandable mold expandable pattern
3. Permanent mold no pattern
What is a benefit of expandable mold reusable pattern? - Answers cheap to make
, How are expandable mold reusable pattern castings made? - Answers Through chemically
bonded sand systems.
What are expandable mold expandable pattern castings also known as? - Answers investment
casting or lost wax
What do you do with expandable mold expandable pattern casting when you're done? - Answers
Throw it away
How long does a die casted permanent mold no pattern take to make? - Answers 15-30 seconds
What is made from centrifugal permanent mold no pattern casting? - Answers Pipes
What are the 4 key factors in casting? - Answers 1. Flow of the molten material into the cavity
2. How it solidifies
3. The cooling rate
4. Type of material
What does a gentle molten metal flow entail? - Answers minimizes gas and sand entrapment
What does a rapid molten metal flow entail? - Answers preclude freezing before filling
What does a diversionary molten metal flow entail? - Answers skims off or filter the slag and
contaminants
What is Chvorinov's rule? - Answers chunky shapes solidify more slowly than think intricate
shapes.
What is green sand made out of? - Answers recycled sand, water, and a small amount of clay
What is green sand castings tooling cost? - Answers Low
Explain shell molding. - Answers Clean sand coated with thermosetting resin, has a moderate
tooling cost.
Explain foam casting. - Answers Vibrate loose sand off foam patterns, pour molten material into
mold which vaporizes the pattern.
Describe the tooling cost and cycle time of foam casting. - Answers High tooling cost and long
overall cycle.
Why does a permenant mold have a high tooling cost? - Answers Complex with high heat and
pressure as well as over 100,000 parts.
What does true centrifugal casting make? - Answers iron pipes
