In terms of die casting, what is a flash?
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excess material attached to a cast product caused by leakage of material
beginning along parting line.
,Counterbore is for what type of fastener? Countersink?
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• Counterbore: socket head cap screw (sits flush with or below the surface)
Countersink: bolt, screw, or rivet
What does the designation "12 in. x 36 in." mean in reference to a lathe?
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• 12 in is the max part diameter (swing over bed), 36 in is the length that's
mounted between centers
Explain the difference between a mechanical press and a hydraulic press for forging.
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mechanical: uses toggles/cranks to produce a quick and varied present and
reproducible stroke
hydraulic: high pressure fluid and a piston to produce slow and constant
force
How is high pressure tubing made?
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, seamless
Describe the difference between peripheral milling and face milling
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• Face: Spindle has an axis of rotation perpendicular to the
workpiece
Leaves circles/marks on machined surface
How are the undercarriage tubes in the automotive industry created?
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hydroforming
The "lost foam" or full-mold process requires what type of pattern?
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Evaporative pattern
Name the three types of forging presses.
Give this one a try later!
excess material attached to a cast product caused by leakage of material
beginning along parting line.
,Counterbore is for what type of fastener? Countersink?
Give this one a try later!
• Counterbore: socket head cap screw (sits flush with or below the surface)
Countersink: bolt, screw, or rivet
What does the designation "12 in. x 36 in." mean in reference to a lathe?
Give this one a try later!
• 12 in is the max part diameter (swing over bed), 36 in is the length that's
mounted between centers
Explain the difference between a mechanical press and a hydraulic press for forging.
Give this one a try later!
mechanical: uses toggles/cranks to produce a quick and varied present and
reproducible stroke
hydraulic: high pressure fluid and a piston to produce slow and constant
force
How is high pressure tubing made?
Give this one a try later!
, seamless
Describe the difference between peripheral milling and face milling
Give this one a try later!
• Face: Spindle has an axis of rotation perpendicular to the
workpiece
Leaves circles/marks on machined surface
How are the undercarriage tubes in the automotive industry created?
Give this one a try later!
hydroforming
The "lost foam" or full-mold process requires what type of pattern?
Give this one a try later!
Evaporative pattern
Name the three types of forging presses.
