How To Enhance Your CNC Machined Precision
Generally, CNC Machined Precision can’t achieve ideal accuracy and tolerance control in the cnc machining based on different factors. In fact, it’s impossible to make parts of each geometric parameter processing with ideal geometric parameters are full compliance, they always cause more a bit little deviation. Normally this deviation is called as machining errors, so we have to minimize machining errors during process. This will be determined from the shape and position accuracy on each of CNC machined parts. Today, we will take this two main factors to share CNC machined precision knowledge,
How to improve the CNC Machined Precision during process
By Locus method to adjust
This machining method is mainly used to form the shape of the processed surface by using the trajectory of the tip motion. For example, we often use machining methods: Turning, milling, planning and grinding). By this method, the forming motion precision will directly effects the shape precision
By forming method
Some forming movements of the machine tool can be replaced by the geometrical shape of the forming tool, thus get precise shape. For example: forming turning, milling, grinding etc. The shape accuracy of the method depends on the shape of the blade.
How to fix the position precision in CNC machining process
In the machining process, the position precision of the machined surface depends on the clamping of the workpiece method and details, this will ask our machinists pay more attention to each of steps, to ensure whole process, they must measure dimension once completed steps.
the right clip processes
It is a percentage table, an underbar or an eyepiece to find out the position of a workpiece directly on the machine tool.
Underline and find the right clip
It needs to draw out the centerline, symmetrical line, and various processing line as the drawings on the blank, then install the workpiece on the machine tool and found out the right clip position according to the existing line on the machine tool.
This clamping method is not commonly used in cnc machining process. Which is mainly due to the low productivity and accuracy, and for worker also have high requirements. It’s usually used in the small batch production or complex and heavy parts.
Using the fixture fixed.
This fixture need to be designed as the machining process. The positioning element on the fixture can make workpiece and cutting tool possess correct position quickly, not need to look for is, and it can ensure the precision of the workpiece clamping positioning. By this, it is equipped with high efficiency and high positioning accuracy. So it is suitable for batch and mass production in cnc machining process.
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