Plastic Injection Molding vs. 3D Printing

Plastic injection molding generally entails making plastic containers using the pelleted or granular plastic resins. For PET bottles, stretch blow molding machine is normally used to achieve the same. In injection molding variety of materials are used, these include the polystyrene, polycarbonate, polypropylene, polyvinyl chloride and others. There are many processes involved in injection molding, these include clamping, injection, solidifying and finally ejecting the product.

On the other hand, the 3D printing process is still generally new given that it has just been on the scene for around five years. Its oddity joined with misguided conceptions for its capabilities of doing well more than plastic injection molding. In 3D molding, materials such as ABS plastic, nylon, steel, wax, PLA, polycarbonate are normally used.

Contrasts between Plastic Injection Molding and 3D Printing

These two procedures are comparable from numerous points of view. For instance, they are both used to make complex shapes from plastic; be that as it may, it is likewise vital to take note of the distinctions. These differences include:

  •    Costs

The forthright expense of 3D printing is low, however, can possibly go up because of misprints. The expense of injection molding is moderately high at first, yet that expense goes down throughout a high-volume generation run.

  •    Technical Issues

Programming glitches keep on plaguing 3D printing however these issues don’t influence injection molding. Settling these issues is regularly expensive and tedious.

  •   Time

Injection molding includes infusing polymers into shape and after that quickly cooling them with the goal that another cycle can begin. On the other hand, the melded type of deposition modeling of 3D printing necessitates that a plastic fiber is melted and used as a drop when making a printed product. This process in 3D printing consequentially takes hours. The outcome is that plastic injection molding is a significantly quicker alternative.

  •    Quality

The quantity of 3D printable materials is also limited when contrasted with the number for injection molding. Parts that are 3D printed will consequently not have indistinguishable properties from injection formed parts. For example, injection shaped parts will have more tightly resistances when contrasted with 3D printed parts.

Those distinctions are the reason most makers pick plastic injection molding more than 3D printing for a genuine generation. Always ensure that you buy a stretch molding machine that will improve the production rate while delivering high-quality plastic products.


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