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The Advantages and Disadvantages of 3D Printing Technology

Sep. 03, 2021

In the past few decades, the manufacturing industry has faced major changes. As new production methods such as 3D printing and CNC machining enter the market, a new era has been opened up for the improvement of the manufacturing industry. Especially the 3D printing technology, which is a representative disruptive technology of the manufacturing industry, has realized a major change in manufacturing from equivalent materials, subtractive materials to additive materials, changed the traditional manufacturing concepts and models, and has great value. Do you know the advantages and disadvantages of 3D printing?


Three-Dimensional Detection

       Three-Dimensional Detection


What is 3D Printing?

3D printing, or additive manufacturing, is the construction of a three-dimensional object from a CAD model or a digital 3D model. The term "3D printing" can refer to a variety of processes in which material is deposited, joined or solidified under computer control to create a three-dimensional object, with material being added together (such as plastics, liquids or powder grains being fused together), typically layer by layer


Advantages of 3D Printing


Metal 3D Printing

Metal 3D Printing 


Save Materials

There is no need to remove scraps, which improves the utilization rate of materials and reduces costs by abandoning the production line.


Produce Products that CNC Can't Process

It can achieve high precision and high complexity, and can manufacture very complicated parts that cannot be manufactured by traditional methods.


Products with a Three-dimensional Model

No need for traditional tools, fixtures, machine tools or any molds, you can directly generate physical products from any shape of the computer's 3D CAD graphics.


Manufacture Quickly

It can automatically, quickly, directly and accurately convert the three-dimensional design in the computer into a physical model, and even directly manufacture parts or molds, thereby effectively shortening the product development cycle;


Start Production at Any Time

3D printing does not require a centralized and fixed manufacturing workshop, and has the characteristics of distributed production.


Short Molding Time

3D printing can take shape in a matter of hours, and it allows designers and developers to achieve a leap from floor plan to physical.


Print Assembly in One Piece

It can print assembled products, therefore, it greatly reduces assembly costs and can even challenge mass production methods.


Disadvantages of 3D printing technology


Compared with Traditional CNC Machining

When traditional CNC machining products, engineers need to program and then mill them on the machine. Not only is it time-consuming, but also must be operated by relevant technical personnel. However, compared with the products processed by 3D printing, the surface is better and the strength is guaranteed. 3D printing is faster, but there are some differences in product surface and strength.

At present, only the cooperation of 3D printing technology and traditional CNC subtractive manufacturing can make it more convenient for us to make products, and the cost will be reduced to meet the needs of customers.


Restricted Printing Materials

The limitations and bottlenecks of 3D printing technology are mainly reflected in materials. At present, the printing materials are mainly plastic, resin, plaster, ceramics, sand and metal, etc. The materials that can be used for 3D printing are very limited.

Although many homogeneous and heterogeneous materials have been developed for 3D printing, there is still a need to develop new materials, and some new materials are being developed. This requirement includes two levels. One is that it is not only necessary to conduct in-depth research on the material-process-structure-characteristic relationship that has been applied to clarify its advantages and limitations; the other is the need to develop new test processes and methods to expand the availability. The range of materials.


Accuracy and Quality Issues

Due to the inherent molding principles and development of 3D printing technology is not perfect, the accuracy (including dimensional accuracy, shape accuracy and surface roughness), physical properties (such as strength, stiffness, fatigue resistance, etc.) and chemical properties of the printed molded parts Most of them cannot meet the actual use requirements of the project, cannot be used as functional parts, but can only be used as prototypes, so their application will be greatly reduced.

Moreover, because 3D printing adopts the additive manufacturing process of "layered manufacturing, layered by layer", no matter how tight the combination between layers is, it cannot be compared with the parts cast by traditional molds as a whole. Organization and structure determine the performance of parts.


Zhongshan Wonderful Precision Metal Products Co., Ltd. is a leading supplier of rapid manufacturing solutions, dedicated to rapid prototyping, metal precision CNC machining, non-standard parts customization, sheet metal processing, 3D printing, and high-tech vacuum casting.

If you want to learn more about our service, please contact us!

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