Chapter 2 Careers in Machining Technology 17
Part Programmer
A
part programmer
inputs data into a computer-
controlled (CNC) machine tool for machining a
product. CNC machine tools have revolutionized
the fi elds of machining and manufacturing. How-
ever, computers have no inherent intelligence and
cannot think or exercise judgment. They must be
programmed by a highly skilled part program-
mer who studies the drawings and determines the
sequences, tools, and motions the machine tool must
carry out to machine the part, Figure 2-8.
To perform this task, a part programmer must
have a background that includes the following:
• Formal training in computer hardware as it
relates to machine tool operation.
• Formal training using computer-aided design
(CAD) and computer-aided manufacturing
(CAM) software.
• Experience in reading and interpreting drawings.
• A thorough grounding in machining technol-
ogy and procedures.
• A working knowledge of cutting speeds and
feeds for various tools and materials.
• Extensive training in mathematics.
Many community colleges and career and
technical education centers offer programs in
CNC programming, computer-aided design, and
computer-aided manufacturing.
Supervisor or Manager
A supervisor or manager is usually a skilled
machinist who has been promoted to a position of
greater responsibility. This person will direct other
workers in the shop and is responsible for meeting
production deadlines and keeping work quality
high, Figure 2-9. In many shops, the manager may
also be responsible for training and other tasks.
2.1.3 Technicians
The
technician
is a member of the production
team who operates in the realm between the shop
and engineering departments. The position is an
outgrowth of today’s highly technological and sci-
entifi c world. The job usually requires at least two
years of college, with a program of study centered
on math, science, English, computer science, quality
control, manufacturing, and production processes.
Many state and community colleges offer two year
associate’s degree
programs devoted to preparing
students for such technical positions.
Hydromat, Inc.
Figure  2-7. A setup specialist is a master machinist who
prepares machine tools for operation by less highly trained
personnel. After thoroughly checking the machined part to be
sure it will meet specifications, the setup specialist will turn
the machine tool over to a machine operator.
Tri-Tool, Inc.
Figure 2-8. The programmer prepares the information such
as tools, tool paths, and machining sequence for a CNC
program that will direct the entire machining process of a
specific part. The programmer must thoroughly understand
machining technology.