Industrial Design Plastic Injection Molding

 

 

 

The technique of injection molding makes customized products possible through industrial design. The key of it is the co-design from three aspects including the function of the product, the experience of the user, and the process of manufacturing. It makes it possible for the industrial design solution to be in line with the demand of not only the appearance and human-machine interface but also the characteristics of injection molding, thus preventing the disconnect between the design and the manufacturing. In the end, it can realize the unification of the appearance, performance, and manufacturability of the customized products. It is the key point of making the customized injection- Molded Plastic Parts from the idea a reality, which is widely used in the customization of shell/structure in areas like electronic appliances, automobiles interior, smart home, and industrial machinery.

 

 

• Uniform wall thickness: The wall thickness needs to be kept at 1.5 - 3mm (variations are allowed depending on the material used). Any areas where there is an increase in wall thickness need to be made gradually as this reduces any chances of shrinkage, bubbling, or warping (the difference in thickness between walls should not be more than 0.5mm for ABS parts). Thickenings can be done through adding ribbing without increasing wall thickness. The rib thickness will be 1/2 - 2/3 of wall thickness.
• Reasonable ejection angle: The reasonable ejection angle of internal surfaces without cosmetic needs is no less than 1°, that of the external surface with high-gloss / fine-texture needs is no less than 0.5°, and that of deep-cavity structures should be reasonably increased to 2-3° in order to prevent scratching and mold sticking when ejecting the molded part.
• Complete coverage by rounded corners: All sharp corners and edges should be rounded; the outer rounded corners should be no less than 0.5mm, and the inner ones should be no less than 0.3mm; this will not only improve the feel of the product, reduce the stress concentration, but also increase mold lifespan, and prevent the mold sharp corner from breaking.
• No inverted structure: It is recommended to make it a straight structure if possible. In case of functionality such as snap-fit or groove, the inverted structure should be made to be able to be ejected via slider / inclined top.

 

 

• Home Appliance Plastic Accessories
• Automotive Plastic Accessories
• Furniture Plastic Fittings
• Daily Plastic Parts
• Other Plastic Parts
• Industrial Plastic Injection