What are the benefits of CNC machining?

Time:2013-11-21 11:36 source: Leecheer Author: Leecheer Click:

With the improvement of the living standards and the diversification of the products, the speed of developing product is increasing day to day, so the CNC machining is becomin more and more popular.
The most evident advantage is the tolerance and accuracy exhibited by CNC machines. The paths taken by the tool bits do not have to follow a 2D profile like other RP processes. For example, it can cut away at a material up and down a sloping profile in any degree specified. Each cutting path can also be programmed to be as close as 0.1mm apart (in comparison, SLA creates only horizontal layers of 0.25 mm at best). The implications are profound CNC parts require little or no secondary finishing work, and parts fit together the way they are designed.
In addition, CNC  machined prototypes are excellent for creating true-to-life models. They can be spray-painted or electroplated (when ABS or metal is used). Since the models are similar to final production parts, they can also be used to verify other production and assembly methods such as sonic-welding.