Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
34 Cards in this Set
- Front
- Back
|
What is another name for CNC mill? |
CNC machining centre |
|
|
What is the fundamental distinguishing feature of a cnc mill over all other machine tools? |
Rotating tool that moves through the work in any direction |
|
|
What is the biggest advantage a CNC mill offers? |
It has the flexibility to produce a wide variety of parts and features |
|
|
What complexities do CNC mills present? |
Work holding Chip management Tool motions Safety considerations |
|
|
What are some basic features of a CNC mill? (6) |
C frame 3 axes Vertical spindle Auto tool changer Full enclosure Coolant system Manual vise |
|
|
What axis is associated with the saddle of a horizontal mill? |
Z |
|
|
What direction does the table move for a positive motion in the x axis? |
Left |
|
|
What direction does the table move for a negative motion in the Y axis? |
Away |
|
|
What machine motion is associated with a negative Z direction? |
Down |
|
|
What are the four basic milling operations? |
Facing Shouldering Slotting Pocketing |
|
|
Which milling operation produces a flat surface perpendicular to the axis of the cutter? |
Facing |
|
|
Which milling operation produces a floor and a wall simultaneously? |
Shouldering |
|
|
Which milling operation engages the full width of the cutter? |
Slotting |
|
|
Which milling operation creates an internal wall and a floor and can be of a complex shape? |
Pocketing |
|
|
What are the main components of the CNC mill? (7) |
Base Bed Saddle Table Column Head Spindle |
|
|
What axis is inline with the spindle? |
Z |
|
|
What axis defines left and right motion of the table? |
X |
|
|
What axis defines motion toward and away? |
Y |
|
|
What axis is associated with the head of a vertical mill? |
Z |
|
|
What axis is associated with the table of a vertical mill? |
X |
|
|
What axis is associated with the saddle of a vertical mill? |
Y |
|
|
What axis is associated with the head of a horizontal mill? |
Y |
|
|
What axis is associated with the table of a horizontal mill? |
X |
|
|
What is work holding? |
The practice of securing a workpiece against the forces of machining |
|
|
How does a milling vise differ from a drill press vise? |
Heavier More rigid More precise Anti lift features |
|
|
What should the workholding device achieve? |
Secures workpiece Supports workpiece Positions workpiece Does not damage workpiece |
|
|
The series of workholding setups to progress from raw stock to finished part is referred to as what? |
Work Plan |
|
|
What is the fundamental attribute of any workholding setup? |
Security |
|
|
What workholding attribute would allow for repeatability of machining operations? |
Positioning |
|
|
What workholding attribute combats deflection and vibration due to machining forces? |
Support |
|
|
What feature of the mill table allows for clamping of work or workholding devices? |
T-slot |
|
|
What workholding device allows us to clamp the workpiece directly to the mill table? |
Clamp kit (strap clamps) |
|
|
What is the most important general workholding device for the CNC mill? |
Table Vise |
|
|
What is the nominal size of a table vise? |
Width of jaws |
