Exam Flashcards
1
Q
What would you use to remove chips ?
A
Brush or pliers
2
Q
What’s the equation for RPM ?
A
CsX4 / Do
3
Q
What is the equation for feed rate ?
A
Feed = RPM x CPT x #T
4
Q
What’s is coolant used for ?
A
- Lubricity
- Chip evacuation
5
Q
How do we decide the length of required lathe ?
A
- Length of bed
- Swing
6
Q
What are the two types of EDM processes
A
- Wire EDM
- Plunge EDM
7
Q
What is the main purpose of a die ?
A
To create external threads
8
Q
What is the main purpose of a tap ?
A
To create internal threads
9
Q
Abrasive or grinding wheel
A
- Must be harder than the material it’s grinding
- Must be able to withstand heat
10
Q
Which would have more of a CNC purpose , a spotting drill or centre drill ?
A
A spotting drill
