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Can 3D printing replace mold injection molding?

3D printing, also known as additive manufacturing (in English), is a series of processes that produce objects by adding material in layers that correspond to successive cross-sections of a 3D model. Plastics and metal alloys are the most commonly used materials for 3D printing, but 3D printing can work with almost any material, from concrete to living tissue

1 Answers

23-12-22
The price of 3D printing and injection molding depends on the quantity of parts to be produced. Since users need to make steel or aluminum molds before manufacturing finished products, the cost is relatively high. In addition, if the product prototypes or parts you need to injection mold are smaller, the relative accuracy requirements are higher, and the cost will increase. If the mold needs to be changed midway, the cost will also increase. Various variables also make injection molding production more expensive, making it difficult for manufacturers to budget accordingly. In 3D printing, once the prototype development is completed, you only need to transfer the file to the printer for printing, without the need for molds. Therefore, 3D printing can start producing finished products at a lower cost. Especially for production of less than 50 products, injection molding is more cost-effective. However, users need to note that printing multiple objects will not reduce production costs: the cost will increase as the number of prints increases. The initial cost of injection molding is high, but when the number of products exceeds 60 types, the initial cost will drop rapidly.
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