Thecnc machiningis a term that is very commonly used in the industrial domain to perform various manufacturing activities. The full form of the acronym CNC is computer numerical control. With this manufacturing technique, the process of subtractive manufacturing is carried out using the computerized panels of controls and machines.
These machines help in the removal of different types of layers that is right from the stock piece to custom designing. In other words, the machining type is used to emboss a custom design out of the full stock piece or the workpiece. This numerical control customization is possible for many types of materials that consist of plastic and glass and foam and wood and metals and many-many other things.
Most of the large industries including the aerospace industries have a CNC machine for catering to the needs of carrying out different high-grade customizations required for carrying out intricate large scale versatile designs. In other words, it can be said that a CNC machine is an intelligent autonomous machine that is programmed to be capable of carrying out high-quality customized designs using the technique of CNC machining.
Difference between the subtractive and additive machining types
The additive machining types like the 3D printing or the machining types that require additive formation like molding etcetera are the types which are the tonal contrasts of the subtractive types like the cnc machining. In the subtractive form of machining types, the layers of the stock piece are removed in order to form the customized product however in the additive type of machining the layers are added to form the desired product. In simple words,the subtractive process makes the final ensembles by removal and the additive processes do the same my displacement and deformation plus adding ofcourse.
Due to the automatic working nature of the CNC machines, the products that they produce are the exact replica of the programmed draft. This means due to the high automatic rate of the CNC machining process the end product is rendered with highly precise and highly accurate make with cost-effectiveness as a complementary advantage too. However, as complex and intricate the part formation gets the range of CNC machines to be able to produce the with cost-effectiveness decreases. In other words, more complex the cost of making those products also increase which is however very specific and obvious.
How is the CNC machining process carried forward?
The CNC machines is a better and a modernized version of an NC machine. While the numerical control machine or the NC machine used the punches tape cards for its product designing the CNC machines use the complete automated controls to shape the stock pieces into the desired items. A basic fundamental process of cnc machininghas four major important steps. These are:
- Designing Of the draft model or the CAD model
- Programming the codes for the conversion of the CAD file into the CNC program
- Preparation of the CNC machine to start the product making
- Lastly the execution of the programmed code through the CNC machine.
At last, it can be said that CNC machining is a very effective technique to carry out highly precise and accurate custom model designing methods to produce customized products using the subtractive machining techniques.