The Ultimate Guide to Injection Moulding Techniques

Injection moulding is a versatile manufacturing process that has been used for many years to produce a wide range of plastic parts. While the process may seem straightforward, there are actually several different techniques and variations of injection moulding that can be used to produce high-quality parts. In this guide, we will provide an overview of the various injection moulding techniques and their advantages.

 

Conventional Injection Moulding: This is the most common type of injection moulding, where molten plastic is injected into a mould, allowed to cool and solidify, and then ejected. This technique is suitable for a wide range of applications and is highly repeatable.

 

Micro Injection Moulding: This is a variation of conventional injection moulding that is used to produce very small parts, such as those used in medical devices or electronics. Micro injection moulding requires extreme precision and specialized equipment.

 

Multi-Material Injection Moulding: This technique involves the use of multiple materials, which are injected into the mould in a specific sequence to produce a part with multiple colours or properties.

 

Gas-Assisted Injection Moulding: In this technique, a small amount of gas is injected into the mould after the plastic, which helps to push the plastic against the mould walls, reducing warping and improving part strength.

 

Insert Injection Moulding: This technique involves inserting a metal or plastic component into the mould before injection. The plastic is then injected around the insert, creating a strong, integrated part.

 

Overmoulding: This is a technique used to produce parts with multiple materials, where one material is moulded over another. Overmoulding is commonly used to produce soft-touch grips or handles.

 

Co-injection Moulding: This technique involves the use of two or more materials that are injected into the mould simultaneously to create a part with multiple layers or properties.

 

In conclusion, injection moulding is a versatile manufacturing process with many different techniques and variations. By understanding the different injection moulding techniques and their advantages, you can select the best technique for your specific application. Contact us today to learn more about how injection moulding can help you meet your manufacturing needs.