Essential Considerations For Injection Molded Part Design

2025-02-26

The demand for innovative, new plastic products that are lighter, faster, stronger and less expensive than metal ones has gained incredible traction in the last decade. Many Original equipment manufacturers (OEMs) have been moving toward the innovative possibilities that engineered resins offer. Proper material selection is a critical Injection Molded part design consideration to ensure the finished product survives its intended use, environment and compliance requirements.

Quality Injection Molded Part Design

To prevent design and quality challenges before the molding process even begins, it is imperative to partner with an experienced plastic molding company early in the plastic injection mold design process. A seasoned plastic molder will be able to provide manufacturability feedback and provide solutions for the correction of improper Mold Design. By getting them involved early, you can expect fewer changes after the molding process commences which helps to lower material and labor costs. Furthermore, it will help you avoid dreadful end-use product failures and expedite time to market. Below are some important aspects to keep in mind.

Injection Mold Design Guide

Part Use & Purpose

One of the top considerations for injection molded part design is the purpose of your part and how it will be used. It is important to identify things such as the application your part will be used in and what function it serves, if it is a single component or part of an assembly, if it will be used continuously or periodically, the market it is intended for, and who will handle the end product.

Material Selection

A leading cause of failure in plastic injected molded parts is improper material selection. Strength requirements, operating requirements, and aesthetics all play a role in selecting the right material for your part.

Engineering grade resins are ideal for mission-critical parts that must withstand exceptional conditions often found in demanding markets such as medical, military and aerospace, industrial, and automotive markets for example. Demand for these higher performing materials is expected to increase.

Molding Gate Design

At ABBYLEE，our Master Molders typically find issues with mold gate design which can lead to the part having too much molded-in stress to survive its intended environment. Gate design is critical to achieve quality molded parts. It is essential that gate material, size and location are optimized to prevent expensive and time consuming defects， considering these plastic injection mold design factors are critical to the success of your finished part.