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CNC Machining Terms
– A
machine tool members circular axis motion or slide about the x-axis; values
along the a-axis are the degrees of rotation about the x-axis.
– An NC system
that ensures all positional dimensions are in reference to a shared
datum point; includes both feedback and input.
– Referring to a system
which utilizes electrical voltage ratios or magnitudes to represent physical
axis positions.
– Established by the American Standards Association
as a data transmission code in America.
– The relative movements
of a work piece or tool in a primary direction, consisting of
three linear axes, which are at ninety degree angles from each other;
the X,Y for horizontal movement and Z for vertical movement.
– A characteristic
of a numerically controlled unit that gives operators the ability to
withhold command information from machine tool slides.
– Also called "mirror image," this
machining command procedure is used to create a reverse or mirrored part
by reversing the plus and minus values along a given axis; mirror imaging
makes a left oriented part using a right handed oriented tool path; circular
interpolation also reverses.
–
A CNC controller language using the EIA/ANSI 494 software.
– The relative movement
between interacting mechanical parts as a result of looseness.
– Circular motion of
a machine tool along around the y-axis.
– Code based on
binary numbers expressed as either 1 or 0, denoting true/false or on/off,
etc. The primary programming language of CNC machines.
– A single line of NC
code representing enough information to a CNC machine to execute a single
arc or line movement.
– A function allowing
the control system to ignore any select block of code, at the operators
control.
- Computer Aided Design /
Computer Aided Manufacturing; this is the use of computers to assist in
both the development and manufacturing phases.
–
Utilizing computers to assist the development phase of design.
– Utilizing computers to assist in manufacturing processes by the
computerized control of the tooling process.
– Coordination
between two axes produces an arc and its curvature is clockwise in respect
to the part being machined and the Cartesian planes.
- Coordination
between two axes produces an arc that has a curvature that is counterclockwise
in respect to the part being machined and the Cartesian planes.
– The assembly language
for CNC devices. Each machine instruction corresponds to a fundamental
movement of the robotic mechanism.
– A thin fin of material
which forms at the parting line of the mold.
– A machine tool for shaping
metal or other material. The material is turned about a horizontal axis
while it is shaped by a fixed tool.
– A control
function in which data points are created between given coordinate positions
to permit simultaneous movement along one or more axes of motion in a
linear path.
– The
process of creating a manuscript in the machine control language format
that defines the series of commands for a CNC machine.
– The retention of information
by a CNC computer system until new information is received to replace
it.
– A displacement of a
tool along an axial direction the same as the difference between the real
length and the inputted tool length.
– The quantity to
which axis motion goes beyond the targeted value.
– The variables which
determine the dimensions of a machined part as well as the operational
sequence of the machine tools used to produce the part.
– The selection of tools
needed to produce the desired contours and dimensions of a machined metal
part.
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