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Warping in Injection Molding: Causes, Prevention, and Troubleshooting Guide

Warping is a common defect in injection molding that creates distortion of a plastic part after ejection. Warpage is caused by uneven shrinkage, as a result of residual stresses or cooling imbalances, and often appears as twisting, bending, or dimensional inaccuracy.  Root causes include nonuniform wall thickness, improper mold design, material shrinkage rates, and inadequate […]

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Heat Staking in Product Design: Process, Geometry Guidelines, and Applications

Heat staking is a process that reshapes thermoplastic features to form secure mechanical connections with other components. It offers a clean, durable assembly solution when you need to join plastic and metal parts without visible fasteners. It is used across various industries from automotive to medical devices.  How The Heat Staking Process Works Heat staking, […]

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How to Design Snap Fit Components

Designing components with snap-fits can save you time and money in production by reducing material costs and part quantities, as well as making assembly easier. Typically in the past, injection molding was the most viable method for producing snap-fit joints in plastics. Today, however, CNC machining and 3D printing have opened up both new opportunities […]

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Design for Manufacturing Terms: Definitions and Examples

Manufacturing is difficult enough without knowing the language most manufacturers use. Here’s a quick resource to help you learn the most common terms for describing physical parts. Fundamental DFM Terms Across Processes Undercut In manufacturing, an undercut is a recessed or overhanging feature that obstructs direct tooling access.  There are various solutions to undercuts, although […]

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Ultrasonic Welding in Product Design: Principles, Benefits, and Design Guidelines

Ultrasonic welding is a joining method used across industries where parts are made from thermoplastics, metals, or other compatible materials. Its ability to quickly produce clean, reliable joints has made it indispensable in fields ranging from medical device manufacturing to automotive systems and consumer electronics. For teams focused on design for manufacturability (DFM), understanding ultrasonic […]

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Micro Injection Molding: Materials, Design, Tolerances & Applications

Micro molding is more than just the manufacturing of small plastic parts; it represents a highly specialized apex of injection molding, where precision is measured in microns and tolerances are tighter than a human hair. It is the enabling technology behind modern medicine’s life-saving catheters, connectors found in your smartphone, and fluid circuits that enable […]