The possibilities of 3D printing are many. 3D printing can be a good alternative to injection molding.

For larger quantities, the question often arises: Which process is better suited to my project? Is it injection molding injection molding or can 3D printing technology also produce larger quantities of components cost-effectively? Get more information about this highly relevant topic here - it should give you the opportunity to weigh up the advantages and disadvantages. against each other.

What are the main differences between the two procedures?

One of the biggest differences is that a negative mold must first be produced for injection molding. This is often associated with high costs. 3D printing, on the other hand, does not require a negative mold, which is why this cost factor is eliminated. The unit prices for injection molding are generally very low. However, if the costs of the negative mold are taken into account, the unit price ultimately increases.

What about the sustainability of the two processes?

Injection molding and 3D printing require a lot of electricity. In contrast to 3D printing, however, injection molding requires additional chemicals such as coolants and oils. This is not the case with 3D printing - only as much material as necessary is printed. Depending on the component geometry, support structures may have to be printed. However, this can be fed into the recycling process. Injection molding production requires electric motors with high energy consumption, while 3D printers consume very little electricity.

Advantages and disadvantages of injection molding

The advantages are obvious: once the expensive negative mold has been produced, almost unlimited quantities can be manufactured very quickly. The disadvantage, however, should not be ignored: As soon as even the smallest change has to be made to the component, the corresponding negative mold has to be produced again. again. In most cases, the negative mold that has already been produced is no longer usable.

Advantages and disadvantages of 3D printing

The advantages of 3D printing are that no high initial costs (such as the production of a negative mold) are necessary. Even if it has to be done quickly, 3D printing is certainly the right choice: the time required to create the negative mold should also be factored into the decision. Certain components cannot be manufactured using injection molding due to their complex geometry, which is why 3D printing has a clear advantage here. Production using 3D printing is disadvantageous if you need components in large quantities over a long period of time and these are never or very rarely changed. Nowadays, however, several hundred or thousands of parts can be produced cost-effectively using 3D printing.

Injection molded parts

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