List four parameters of machining that are included within the scope of "cutting
conditions."
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, - Cutting speed
- Feed rate
- Depth of cut
- Cutting fluid used
What are the three types of Cast Iron? Which is the most common?
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- Gray (most comment)
- Ductile
- White
List those metals that are typically die cast.
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- Aluminum
- Magnesium
- Zinc
- Lead
- Tin
- Copper
Explain the difference between a mechanical press and a hydraulic press for forging.
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, A mechanical press applies short, powerful bursts of pressure, whereas a
hydraulic press applies a steady pressure.
What are the purposes of preheating and post-heating in the welding process?
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- Reduces the chance of hydrogen cracking
- Reduce deformation due to thermal expansion
Given the following parameters, find the appropriate RPM and feed rate in
inches/minute.
Cutting Speed: 150 SFM
Tool Diameter: 0.875"
End Mill Chip per Tooth: 0.002"
Number of Flutes: 4
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RPM: (150 12)/(π 0.875) = 655 RPM
Feed Rate: 655 4 0.002" = 5.24 ipm
What are the three basic steps in the conventional powdered metallurgy process?
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, - Blending
- Compaction
- Sintering
Define resistance welding.
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Resistance welding involves heating metal and pressing it together. The
heat comes from current passed through the metal.
In terms of the powdered metallurgy process, what is impregnation?
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Impregnation is when oil or other fluids are permeated into the pores of a
sintered part.
What are the advantages and disadvantages of welding when compared to other
assembly operations?
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Pros:
- Fast
- Cheap
- Strong
- Durable
Cons:
conditions."
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, - Cutting speed
- Feed rate
- Depth of cut
- Cutting fluid used
What are the three types of Cast Iron? Which is the most common?
Give this one a try later!
- Gray (most comment)
- Ductile
- White
List those metals that are typically die cast.
Give this one a try later!
- Aluminum
- Magnesium
- Zinc
- Lead
- Tin
- Copper
Explain the difference between a mechanical press and a hydraulic press for forging.
Give this one a try later!
, A mechanical press applies short, powerful bursts of pressure, whereas a
hydraulic press applies a steady pressure.
What are the purposes of preheating and post-heating in the welding process?
Give this one a try later!
- Reduces the chance of hydrogen cracking
- Reduce deformation due to thermal expansion
Given the following parameters, find the appropriate RPM and feed rate in
inches/minute.
Cutting Speed: 150 SFM
Tool Diameter: 0.875"
End Mill Chip per Tooth: 0.002"
Number of Flutes: 4
Give this one a try later!
RPM: (150 12)/(π 0.875) = 655 RPM
Feed Rate: 655 4 0.002" = 5.24 ipm
What are the three basic steps in the conventional powdered metallurgy process?
Give this one a try later!
, - Blending
- Compaction
- Sintering
Define resistance welding.
Give this one a try later!
Resistance welding involves heating metal and pressing it together. The
heat comes from current passed through the metal.
In terms of the powdered metallurgy process, what is impregnation?
Give this one a try later!
Impregnation is when oil or other fluids are permeated into the pores of a
sintered part.
What are the advantages and disadvantages of welding when compared to other
assembly operations?
Give this one a try later!
Pros:
- Fast
- Cheap
- Strong
- Durable
Cons:
