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What are the advantages and disadvantages of 3D printing?

Oct 13,20

We have more or less seen such comparison in different articles before, which one is more suitable for rapid prototypingCNC  or 3D printing? In Zhihu and Baidu, the information we have seen is not comprehensive. So today, At the request of many friends, I would like to popularize this knowledge again.Today we will talk about 3D printing first, and CNC will talk about it later.

 

 

 

First of all, let's take a look at the features of 3D printing:

 

Advantage of 3D-printing

 

It reduces the technical requirements in the production process and reduces the manufacturing difficulty of the workpiece with internal complex structure.In other words, 3D printed products greatly reduce programming and manual post-processing skills as well as workload.

 

Printing can generate any shape object directly from the computer graphics data without machining or mold, thus greatly shortening the production cycle of products and increasing productivity.

It reduces the technical requirements in the production process and reduces the manufacturing difficulty of the workpiece with internal complex structure.
In other words, 3D printed products greatly reduce programming and manual post-processing skills as well as workload.

Printing can generate any shape object directly from the computer graphics data without machining or mold, thus greatly shortening the production cycle of products and increasing productivity.


Compared with traditional handboard manufacturing, the advantages of 3D printing technology are mainly reflected in the following aspects:

There is little difference in the cost of making complex parts.
It USES additive manufacturing method, so the difficulty of the parts will not increase too much cost, its cost mainly depends on the weight of the parts saved.

Reduce disassembly and splicing time.
For the parts that can be completed within the trip are integrated forming.

Strong delivery time control.
Because in the middle of the reduction of unnecessary process, so as to avoid the production of some accidents and quality factors


With the development of 3D printing technology, raw materials are also diversified from the original simplification. Some customized equipment and materials also have some unique properties or functions.
It occupies an indispensable position in some fields.



Disadvantages of 3D-priting



Most of the strength and hardness of the material is not as good as the traditional plate performance, the structure and function of the material can be selected relatively single

Transparent or translucent materials tend to change color over a long period of time

Do not process materials that have properties such as corrosion resistance or flame retardancy

Deformation is easy to occur. Most small-batch products will be made of 3D printed parts as prototypes and then adopt the process of duplicating mold

Due to the limitation of equipment travel, it is not suitable for 3D printing compared with large workpiece such as medical treatment and automobile