Deck 10: Tool Radius Compensation

Question 1

A lead-in and lead-out is needed to give the tool space to move from the center coordinates to the ____ coordinates.

A) absolute
B) tangent
C) incremented
D) polar

Answer 1

B

Question 2

Describe some entry or exit problems that we might encounter when using cutter compensation.

Answer 2

Entry or exit problem: Lead-in or lead-out is not long enough. The control requires a travel distance of at least the radius value of the tool that is stored in the offset registry. Attempting to start or stop cutter compensation with an arc. Entry or exit at an acute angle. Many controls will not allow an angle of less than 90 degrees.

Question 3

How does programming with automatic tool radius compensation differ from tool center programming?

Answer 3

Programming with automatic tool radius compensation differs from tool center programming in two ways. First, the programmed coordinates of the toolpath are the actual corners or edges on the workpiece. The tool is assumed to be tangent at any of these points where one geographical element meets another. Tangent means that just one point of the circle (cutter) touches the line or arc from the workpiece. Automatic tool radius compensation differs in a second manner: we have to transition from tool center coordinate to tool edge (or tangent) coordinates. This will be referred to as lead-in and lead-out.

Question 4

The cosine of an angle is equal to ____.

A) opposite side/hypotenuse
B) opposite side/adjacent side
C) adjacent side/hypotenuse
D) hypotenuse/opposite side

Question 5

What is the primary objective of NC programming, and what are the steps in this process?

Question 6

A compensated toolpath cannot reverse itself if it is programmed into a space that is smaller than the programmed ____.

A) X-Y plane
B) offset
C) axis
D) diameter

Question 7

The real power of automatic tool radius compensation is that the size of the workpiece can be controlled by simply changing the tool's ____ value in the register.

A) feature size
B) automated dimension
C) diameter offset
D) fixture

Question 8

A workpiece with one angular feature requires the tool to be positioned tangent to the feature to be machined.

Question 9

Discuss how to find tool location given intersecting arcs and angles.

Question 10

A line drawn from the arc center to the tangent point will ____ the adjacent line.

A) be perpendicular to
B) be parallel to
C) form an acute angle with
D) be the same as

Question 11

Lines and ____ are the two basic elements that create the shape of the finished workpiece.

A) surfaces
B) arcs
C) planes
D) spheres

Question 12

It is extremely uncommon for a workpiece to be specified with a radius on one or more corners.

Question 13

Tool radius compensation is also commonly called dwell compensation.

Question 14

The actual offset amount of a diameter is dictated by the value that has been entered in the tool diameter registry.

Question 15

The longest side of a right triangle is known as the ____.

A) hypotenuse
B) vertex
C) leg
D) tangent

Question 16

The primary objective of NC programming is to find the locations on a ____ coordinate system that can be used to program a toolpath.

A) polar
B) 4-D
C) Cartesian
D) tangent

Question 17

Can automatic compensation be initiated during an arc move?

Question 18

A(n) ____ is a fixed point of rotation of an angle.

A) ray
B) vertex
C) arc
D) center

Question 19

The condition created when an arc touches another arc, curve, or line at only one point is called a(n) ____.

A) tangent
B) secant
C) intersection
D) solution

Question 20

Several calculations may be needed to find the cutter location when a line intersects an arc.