Plastic vs Metal 3D Printing: Which One is Stronger?
When it comes to 3D printing, one of the most common debates is whether plastic or metal is the stronger material. There are pros and cons to each technology, which we will be discussing in this post.
Plastic 3D Printing
Plastic 3D printing is generally more affordable and accessible than metal 3D printing, making it the more popular choice for many hobbyists and small businesses. The most commonly used material for plastic 3D printing is PLA (polylactic acid), which is biodegradable and easy to print with. Other popular materials include ABS (acrylonitrile butadiene styrene), PETG (glycol-modified PET), and nylon.
However, plastic is not as strong as metal, which makes it less suitable for certain applications. The tensile strength of PLA, for instance, is between 50 and 70 MPa, whereas the tensile strength of aluminum, which is a common metal used in 3D printing, is between 280 and 380 MPa.
On the other hand, plastic has some advantages over metal, such as its ability to be colored and its flexibility. Plastic parts are also generally lighter in weight and require less energy to produce.
Metal 3D Printing
Metal 3D printing is generally more expensive and difficult to use than plastic 3D printing. However, metal is much stronger than plastic, making it suitable for applications where strength is paramount. Common metals used in 3D printing include stainless steel, titanium, and aluminum.
The tensile strength of these metals varies, but it is generally much higher than that of plastic. For instance, the tensile strength of stainless steel is between 420 and 470 MPa, while the tensile strength of titanium is between 880 and 950 MPa.
However, metal has some disadvantages compared to plastic. It is heavier, harder to color, and requires more energy to produce.
Conclusion
In conclusion, there is no straightforward answer to the question of which is stronger: plastic or metal 3D printing. It depends on the specific application and requirements of the part in question.
If you require strength above all else, metal 3D printing is likely your best option. On the other hand, if you need a more lightweight and flexible material, plastic 3D printing may be more suitable.
Ultimately, the decision between plastic and metal 3D printing comes down to a trade-off between strength, affordability, accessibility, and ease of use.
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PS: Did you hear about the 3D printer that went to space? It was over the moon about zero gravity printing! Stay tuned for more lighthearted jokes in our future posts. :)