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Metal Assemblies: Fabrication Methods, Joining Techniques, and Design Guidelines

Metal assemblies refer to both the process and the finished result of connecting multiple metal parts to form a durable, functional product or subassembly. This can be achieved through methods such as welding, riveting, brazing, or fastening with screws and bolts. The approach used depends on the required strength, precision, and application of the final […]

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Product Development Expo (PDX) 2025: Training Session Recap 

Top DFM Tips, Finishing Choices, and BOM Consolidation Strategies  In October 2025, Fictiv’s manufacturing experts hosted an in-depth training session in Mesa, AZ, covering advanced topics in surface finishing, Bill of Materials (BOM) consolidation, and Design for Manufacturing (DFM)—including guidelines to follow and when to push their limits. Led by Robbie Long, Tessa Axsom, and […]

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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 […]

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Six Sigma in Manufacturing: Principles, DMAIC Tools, and Applications

When we talk about Six Sigma today, particularly in the context of manufacturing, we’re referring to a systematic way of making processes more reliable, efficient, and nearly error-free. Initially developed as a quality control system for large-scale manufacturing operations, Six Sigma’s primary goal was to improve processes while reducing the number of defects. Over time, […]

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Sheet Metal Fasteners and Self-Clinching Hardware: Types, Installation, and Best Practices

Sheet metal fasteners, such as self-clinching nuts, studs, and standoffs, provide strong, reusable threads in thin sheet assemblies where traditional methods like welding or tapping are not feasible. These fasteners are pressed into pre-punched holes, displacing the surrounding material to form a permanent, load-bearing anchor. They are widely used in electronics enclosures, aerospace panels, and […]