What is a CNC machine tool?

CNC machining plays a vital role in the ever-evolving modern manufacturing industry. But what exactly is CNC? How does it work in manufacturing and what does a CNC machinist do? Even more, how can an aspiring CNC machinist successfully prepare and embark on today's CNC machining jobs? As Connecticut's leading manufacturing and machining school, Goodwin College breaks down all the following details from the ground up:

What is CNC?

CNC stands for Computer Numerical Control. It is a computerized manufacturing process in which pre-programmed software and codes control the movement of production equipment. CNC machining controls a complex range of machinery such as grinders, lathes and turn-mills, all of which are used to cut, shape and create different parts and prototypes. Every day, CNC machinists combine mechanical design, technical drafting, math, and computer programming skills to produce a variety of metal and plastic parts. A CNC operator can take a piece of metal and turn it into a critical part of an airplane or car. CNC precision machining

What is a CNC machine tool?

Computer numerical control machines are automatic machines that are operated by a computer executing a pre-programmed sequence of controlled commands. CNC machines are essentially the opposite of 'old-fashioned' equipment, which are manually controlled by handwheels or levers, or mechanically automated only by cams. Today's modern CNC machines understand and operate using a CNC machining language called G-code, which tells them precise measurements for production, such as feed rate, speed, position and coordination.

Today, the design and mechanical parts used for CNC systems are highly automated – not the same old, dangerous factory machines you might think of in the past. The mechanical dimensions of the part are defined using computer-aided design (CAD) software, which is then translated into manufacturing instructions by computer-aided manufacturing (CAM) software. Therefore, it is important to have CNC machinists and programmers knowledgeable in the industry to operate this high-tech machine.

Importance of CNC Machining

Connecticut manufacturers make important products for the industry (such as jet engines, helicopters and submarines). And, thanks to the most recent technological advancements, the frosted factory life of the past is gone. Today, workers use their machining skills in a clean, professional environment using advanced cutting-edge technology.

Getting Started

Those pursuing a career as a CNC operator enjoy hands-on, never-ending work in a growing field.

With proper CNC machining training, machinists and operators can help create a wide variety of finished products, leading to a thriving manufacturing industry in Connecticut and play a vital role in the overall economy. Skilled CNC machinists see the product through the entire manufacturing stage, from initial concept to design, coding, and the final product. In this way, CNC machining is not only a typical manufacturing job, but it can also be done during machining. This is a hands-on, innovative, rewarding career path for innovators who like to look at the life cycle of work.

What is it like to become a CNC machinist?

Typical day-to-day duties of a CNC operator may include:

Reading blueprints, sketches or Computer Aided Design (CAD) and Computer Aided Manufacturing (CAM) files

Set up, operate and disassemble manual, automatic and computer numerically controlled (CNC) machine tools

Align, secure and adjust cutting Tools and Workpieces

Monitoring machine feeds and speeds

turning, milling, drilling, reshaping and grinding machine parts to specification

measurement, inspection and Test the finished product for defects

Smooth the surface of the part or product

Show the finished workpiece to the customer and modify it as needed.

For mechanics aspiring to start an exciting career in this growing field, earning an associate's degree and/or certificate from a reputable manufacturing school is a great investment in the future! For those looking to become a CNC machinist in Connecticut, Goodwin College is accredited by our various CNC programs.

Whether at the certificate or degree level, our CNC machine training gives students a thorough understanding of manufacturing processes, materials and manufacturing mathematics. You will also gain competence in technical drawings, specifications and computer-aided machining. Perhaps most importantly, you will also gain hands-on experience with modern CNC techniques.

Goodwin College combines classroom instruction with hands-on experience and training. Students are taught on our new CNC 3-axis mill and lathe to provide the skills, know-how and experience needed to succeed in the industry. Thanks to the expansion of CNC operator training, students can also learn advanced Mastercam skills needed to program tool positions, motion, and feeds and speeds.

After completing these courses, students are ready to receive certification from the National Institute of Metalworking Skills (NIMS) to become CNC operators.

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