The difference between CNC machining and 3D machining

Hand plate processing mainly has CNC machine processing, 3D printing, compound mold, rapid mold, etc., then today by NOBLE for everyone to say what is the difference between CNC machine processing and 3D printing.

First of all, we should know that 3D printing is an additive technology, and CNC machining is a subtractive technology, so they have great differences in terms of materials.

Differences in processing materials

3D printing materials are mainly liquid resin, nylon powder, metal powder, etc., these three different materials occupy the majority of the industrial 3D printing market; and CNC machining materials are all a piece of plate, and CNC machining materials to choose more than 3D printing, general hardware plastic plates can be CNC machining, and molding parts density than 3D Printing good.

Different processing precision

3D printing out of the hand plate is relatively rough, low precision; and CNC machining out of the hand plate precision is high, generally can reach conquer ten silk, using high-speed drilling and tapping center processing out of the metal hand plate, in the precision can be achieved.

Processing range is different

3D printing processing love chat is mainly plastic materials, such as photosensitive resin, ABS, etc., and its processing range is relatively limited, generally not more than 600mm, if greater than this size, you need to disassemble the pieces to print, print such a large hand plate generated by the cost is also very high.

And CNC processing material is more extensive, almost all plastic and metal can be processed, and the stroke is also relatively large, know are more than 1 meter, like the gantry machine, the processing range can even be processed to two to three meters of the whole range.

CNC Mill Machine

Easy to implement

The CNC machining process can be applied to a wide range of products and materials. It requires little or no adjustment and in most cases it may be necessary to change the cutting tools to be used between projects.

In short, CNC machining can produce a product in large quantities in a very short period of time. 3D printing is very time consuming and even the fastest industrial 3D printers can take hours to produce a part.

Minimal Finishing

CNC machining is a one-time process. The process is extremely precise and the accuracy of CNC machines means that the product leaving the machine requires minimal to no further tooling before it is shipped to the customer.

The incredible surface finish eliminates unplanned burrs and edges. The most that parts may require is some surface finishing and smoothing, all of which is done during CNC machining.

3D printing, on the other hand, will require lengthy and complex finishing to bring the product to near usable tolerances.

Even then, the finishing and precision will never match that of a product produced on a CNC machine.

Speed is faster

Nothing compares to the speed of a CNC machine when considering the finished product that leaves the CNC machine.

This accuracy and speed combined with the absence of human operator error means that products are produced at an amazing rate.

This combination of speed and accuracy means that CNCs are suitable for everything from small, medium to large production runs.

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