Plastic Injection Mold Design Guidelineswall thicknessThe wall thickness of a thermoplastic part depends on several factors. These factors include the type of thermoplastic used, mechanical stress on the part, electrical performance requirements (if any), and more.The following are general rules of thumb:The main wall thickness of the part should be uniformAvoid rapid thickness transitions. Instead, use a gradient thickness transition of 3 to 1.The gate for injecting the thermoplastic should be in the thicker sectionWall Thickness ConsiderationsWhen designing plastic parts, several factors should be considered to determine the wall thickness of the part. These factors include:Application requirements such as:Structural strengthfatiguedeflectionelectrical loadThe formability of parts includesPart sizeMaterial flows to the narrowest pointNumber and location of doorsDesign requirements for registration bodies such as UL or RTI
