Before CNC machine services, machinists performed work manually. This took a high degree or skill and experience for precision work. The machinist carefully measured and had to reset each machine for each job. Today, all that is different as machining integrates with computer technology, but how did it start? Here is a brief look at the early days to give you an idea of what happened.
It’s All about Numbers
CNC machine services (CNC means Computer Numeric Control) started out as a numeric control. Back in the late 40s, John Parsons (working with MIT researchers) figured out ways to automate machine shop work for the aerospace industry. The first products were milled templates for helicopter rotor blades. They used an IBM 602 (which was the first machine that could do division as well as addition, subtraction, and multiplication) to figure out number coordinates that corresponded to punch cards. Each hole in the punch tape was a specific direction to the machine. It was similar to an old fashioned music box with tiny tabs that played musical notes.
Punch cards provided programs for the machines to follow. By the 1960s (as computer technology advanced) punched tape led to computer control. The basic concept of CNC machine services is the same as the early days. Each machine still uses command functions, drive systems, and feedback or response systems.
Benefits
Computerized machining lets the average person control machining tasks that once took highly trained and experienced machinists which received high wages and top job benefits. When shops can easily train people to run their machines, they don’t have to pay as much for labor.
It’s possible to perform precision work with modern CNC machine services. Some machines have as many as 5 axes or more, and they can rotate, turn, and do work from many angles, creating complex and intricate three-dimensional shapes.
