Exam 8: Computer Numerical Control

When spot or center drilling, counterboring, or countersinking, it is often desirable to have the cutting tool ____ after it reaches full depth to relieve tool pressure or provide a consistent machined surface.

When programming ____, the programmer does not need to reduce the entry feed rate because there should be no significant synchronization error.

At the very end of each block is a semicolon (;) character is called a(n) ____ character.

The Cartesian coordinate system that identifies the location of the origin on the workpiece is called the ____.

When using TNRC, the tool tip ____ orientation must also be entered in the geometry offset page.

The ____ flange holders have a thicker flange with an off-center groove.

The CNC program is created and stored in the ____.

The ____ operation is usually the first operation to be performed on a turned workpiece.

When using ____ positioning, the coordinates of all positions will be referenced from the beginning.

Two M-codes can be used to cause a ____, or hold, on the program until it is resumed by pressing the cycle start button on the MCU.

____ vises are the most commonly used workholding devices for milling because they are highly versatile, accurate, and simple to use.

____'s popularity is due partly to the versatility of workholding, the inherent rigidity of the machine's column, and the ability to allow gravity to help remove chips out of the machining area.

____ offsets may be used to compensate and adjust for wear as the tool is used during production.

The ____ knob allows the programmed feed rate to be decreased, increased, or even stopped.

In CNC mill programming, it is standard practice to establish a safety zone above the workpiece or workholding device called a ____.

____ controls slow rapid motion while a program is running or vary the jogging rate.

After the machine has been properly turned on, most machines require a reference return to the machine's origin, or ____ position of the MCS.

The entirety of the what makes up a drawing is referred to as ____ in many software packages.

Once the tool measurement has been determined, the tool offset measurements are stored in the machine's ____ offset page.

Offsetting the path of the cutting tool is called ____ compensation.