Tips of the Surface Finishing for CNC Machining parts
Good surface finishing is crucial to the external parts. As one excellent CNC machining manufacturer Creatingway, we always apply our skills, knowledge, and experience to produce high quality and tight tolerance parts to our customers for checking and testing. We are proud of our products to have been accepted and approved by most of the customers. But if you have encountered similar a situation: when you finish one part, it looks like very good and meet the designing specifications, but only the surface finishing and overall appearance is not desirable. When this happens we need to go back to think that whether we have ignored something when productions.
Below Are the Main Tips of The Surface Finishing
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Control the Chip of CNC Machined parts
Chip evacuation is crucial to produce a good surface of CNC machining parts. Of course, how to control the chip is the first thing that we should consider. When one chip deformation or be cut during the machining process, it will be seriously affected the whole part surface finish. So to change the style of chip-breaker is worth considering.
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Reasonable control CNC machining speed
Using carbide cutting tools also is crucial to get a good surface finish of CNC Machining Parts. When you’re increasing the speed to finish the part, it just reduces the whole production time, but couldn’t ensure good surface finishes. So we should reasonably control the cutting tools to avoid poor surface finishing occurred.
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Accurate to use the tool nose radius for surface finishing
A large tool nose radius will be able to accommodate the faster speeds. one insert is able to feed one half the TNR per revolution, so you can get a good expected, but if the TNR or IPR ratio is very fast, it will so easier to produce many CNC machining shapes on the surface of the parts, no smooth finishes. Therefore, using the accurate tool nose radius is very important to us.
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Increase the radius
There are some angles that can’t be machined by CNC when cutting. In general, we suggest that we need to increase the radius to simplified design under it will be no effect on the whole product assembly. Or when it is a right Angle, we need to change the radius for easier machining and better surface finish, since 45° cutting angle will produce a better surface finish than 90° cutting angle.
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Never Stopping and Hesitate
When one part machining finishes. The surface of the part always leaves many marks once stopping moving. So we need to change this process to avoid the marks occurred. If possible, it is a must to us effectively control the tool speed and ensure it never stopping or hesitates when cutting. If so, we will get a good surface of CNC machining parts.
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