| (L) operate a CNC lathe in automatic mode; and
(M) illustrate the proper power down process on a CNC
lathe.
(10) The student operates a CNC mill. The student is
expected to:
(A) use equipment commonly found on and around a CNC
mill in a safe manner;
(B) recognize, name, and describe the function of the
primary components of a CNC mill;
(C) perform preventative maintenance checks on a CNC
mill such as checking all fluid levels, system pressure, tooling wear,
and component lubrication and cleaning;
(D) test the coolant for proper density and adjust
accordingly in order to reach the correct mixture;
(E) perform a power up on a standard CNC mill;
(F) demonstrate the use of the jog controls on the
operator panel to jog the mill's axes;
(G) demonstrate the ability to locate, assemble, and
measure tooling using a presetter or other means according to work
instructions and job documentation;
(H) install tools and tool holders in the automatic
tool changer locations according to work instructions and job documentation;
(I) locate and set workpiece to zero on a CNC mill;
(J) set any required work offsets for the part to be
machined after a basic tool setting process has been completed;
(K) set the proper geometry/tool offsets for each tool
in a standard tool-setting process;
(L) operate a CNC mill in automatic mode; and
(M) illustrate the proper power down process on a CNC
mill.
(11) The student learns to manually program a CNC lathe
without the help of computer-aided design or manufacturing (CAD/CAM)
software. The student is expected to:
(A) calculate trigonometry to determine coordinates
from technical drawings to cut arcs and angles;
(B) use trigonometry for determining cutter offsets;
(C) use appropriate mathematical skills to solve problems
while programming a CNC lathe;
(D) write a simple program to face and turn;
(E) write a simple program to cut radiuses, angles,
grooves, and threads;
(F) write a program using cutter radius compensation;
(G) write a program using canned cycles such as G71;
and
(H) write a program and produce a complex part such
as a NIMS Level 1 CNC lathe part with zero defects.
(12) The student learns to manually program a CNC
mill (without the help of CAD/CAM software). The student is expected
to:
(A) use trigonometry to determine coordinates from
technical drawings to cut arcs and angles;
(B) use trigonometry for determining cutter offsets;
(C) use appropriate mathematical skills to solve problems
while programming a CNC lathe;
(D) write a simple program to perform hole operations;
(E) write a simple program to cut radiuses and angles;
(F) write a program using cutter radius compensation
and ramping; and
(G) write a program and produce a complex part such
as a NIMS Level 1 CNC milling part with zero defects.
(13) The student develops a deeper understanding of
quality control. The student is expected to:
(A) evaluate engineering drawings using geometric dimensioning
and tolerancing;
(B) discuss the American Society of Mechanical Engineers
(ASME) Y14.5M standard that defines geometric dimensioning and tolerancing;
and
(C) appraise various quality control/management programs.
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