As the name suggest, precision machining means using a special type of machine tools in the production of metal or plastic parts according to the industry needs and requirements.
Some of the most common machines used in the manufacturing processes are lathes, milling machines and drillers, but to achieve the highest precision, the latest milling technology is the most recommended, and here is where CNC becomes relevant.
CNC (Computer Numerical Control) refers to the automation of the machine tools achieved through computers that execute a program with machine control commands.
Precision machining is usually achieved by following very specific mechanical plans created with CAD/CAM programs which provide the information that will be used to set the CNC machine.
The part’s mechanical dimensions are defined using computer-aided design (CAD) software, and then translated into manufacturing directives by computer-aided manufacturing (CAM) software.
The resulting directives are transformed (by “post processor” software) into the specific commands necessary to produce the component, and then loaded into the CNC machine.
Thanks to the technological developments, both the software and the machines provide a high precision to the manufacturing process.
These machines are so precise that they can achieve tolerances up to ±0.001 mm.
CNC machines come in different types.
The most modern CNC machines combine different tools and can perform different machining processes on the same part, such as milling, drilling and turning.
In addition, they can be categorized according to the number of positions they can perform the machining activities on, being the most common ones:
- 4 axis CNC machine: in addition to the fixed X, Y and Z, it adds the capability of working on a rotary axis which allows to work on more complex designs.
- 5 axis CNC machine: like the previous one it adds rotary axis capability. This time, it adds not only one but two rotary axis work which increases the complexity and precision on the part being manufactured.
If you want to learn more about precision machining and CNC or you want to know how your “idea” can become a reality, please contact us now.
Here at Bonide we study the part complexity, and we will offer you the best production method to reach the highest quality at the best price.