Injection molding is a type of plastic manufacturing in which molten polymer is forced into molds at high pressures. It is used to make a wide variety of solid plastic parts and products, including consumer goods, automobile parts, beverage containers, and medical equipment.

Typical Uses for Injection Molding

Components for a wide range of items are made using the injection molding method. The most widespread uses involve the automobile, electronics, medical devices, and many other industries.

  • Fiberoptic: Injection molding is used to make connectors and parts for fiber optic applications in the telecommunications and medical industries.
  • Electronics: Injection molding is used to create circuit boards, connections, and other electronic equipment.
  • Medical: Injection molding is used to make medical equipment such as syringes and airways.
  • Aerospace/Aviation: Precision is required when dealing with the severe and isolated elements prevalent in the aerospace industry. Components for aircraft and spacecraft that require great strength and light weight are frequently designed and produced using injection molding.
  • Consumer Items: QT Manufacturing uses CAD/CAM technology to create unique molds or flip molds for your heritage products, whether they are toys or textiles.

Injection molding advantages

Because it can produce a variety of goods and parts, the injection molding process is favored by many firms. In addition to this, it has a lot of benefits over other conventional production procedures.

1. The automated process lowers the cost of production

In injection molding, every step of the process is automated, and all labor is done by robots and machines under the supervision of a single operator. Due to lower overhead expenses, this automated technique helps in lowering production costs.

2. It allows the use of various materials in a single product

The usage of several different plastic types at once is one benefit of adopting this manufacturing process. It has a cross pump that makes the choice of materials possible.

3. Finished goods have increased compressive strength

Fillers are used in injection molds during injection molding. Although the fillers have decreased the material’s density during the process, they also aid in boosting its strength once it has been completed.

4. It supports intricate geometries and features

More details can be added to the product’s design because of the high pressure used in the molding process. Additionally, it implies that sophisticated designs and elaborate shapes can be produced here.

The disadvantages of injection molding

Although the method of plastic injection molding has numerous benefits, it also has several disadvantages like:

1. High initial expenses

Molds for plastic injection are complicated. They are difficult to design and construct, which means labor expenses are considerable. Additionally, there are other phases involved in creating a mold that would eventually generate millions of similar parts.

2. Size restriction on larger components

The production of plastic injection moldings requires enormous machinery. Extremely huge pieces require a massive mold tool and are highly expensive to produce.

3. Requires careful design

To prevent tooling problems like undercuts (which will greatly increase manufacturing costs), locked-in features, and inadequate drafts, plastic moldings must be carefully designed.