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Explore expert articles, engineering guides, and manufacturing breakthroughs from FD Group's precision specialists.

Injection Molding

What Is Scientific Molding and Why Does It Improve Consistency?

Published: September 17, 2026 Author: Editorial Team Read Time: 8 min

Scientific molding builds an injection molding process around what the plastic actually experiences, not just machine settings. Learn how decoupling fill, pack, and hold and the six-step study reduce part-to-part variation and deliver reliable, repeatable production.

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Latest Articles

Quality technician measuring an injection molded part on a coordinate measuring machine

Quality Control

How We Inspect Injection Molded Parts: Our QC Process Explained

See how injection molded parts are inspected from the first material check to final measurement. This guide covers first article inspection, in-process checks, CMM and vision measurement, GD&T, Gage R&R, and SPC, and shows how quality is verified rather than assumed.

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Close-up of an injection molded plastic part with dimensional tolerance callouts

Injection Molding

Understanding Tolerances in Plastic Injection Molding

Why are plastic molding tolerances looser than machining, and how tight can they realistically go? This guide explains shrinkage, wall thickness, mold-fixed dimensions, the DIN 16742 and ISO 20457 standards, and how tolerance choices drive part cost.

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First article inspection report with a ballooned drawing for an injection molded part

Quality Control

First Article Inspection (FAI): What to Expect From Your Molder

First article inspection proves your molder can make conforming parts before full production. This guide explains what FAI verifies, when it is required, what an AS9102 report contains, how it differs from automotive PPAP, and why AS9102 is guidance rather than a certification.

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Injection Molding

Cavity Pressure Monitoring: The Secret to Process Stability

Machine settings do not show what the plastic experiences inside the mold. Cavity pressure monitoring measures quality where parts actually form. Learn how direct, indirect, and contact-free in-mold sensors work and how they deliver shot-to-shot process stability.

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Ejector pins releasing plastic part from open injection mold core and cavity

Tooling & Manufacturing

How to Design Parts That Are Easy to Demold

Learn practical engineering rules to design injection-molded parts that release smoothly, prevent part sticking, reduce cycle time, and eliminate costly tooling complexity.

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Precision injection mold cavity steel block inspection and CAD review

Tooling & Manufacturing

Top 10 Design Mistakes That Increase Injection Molding Costs

Explore the top 10 design mistakes that inflate injection molding tooling and production costs, from non-uniform wall thickness to poor draft angles, with practical DFM solutions from FD Group.

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CAD finite element stress analysis and cross section of ribbed plastic component with bosses

Tooling & Manufacturing

Rib and Boss Design Guidelines for Injection Molded Components

A comprehensive engineering guide to designing ribs, bosses, and gussets for injection-molded parts to maximize structural strength while avoiding sink marks and warpage.

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Multi-cavity injection mold tooling assembly with hot runner manifold system

Tooling & Manufacturing

Designing for Multi-Cavity Molds: What You Need to Know

A practical guide to multi-cavity injection mold design and economics: single vs. multi-cavity cost calculations, cavity balancing, runner design, and procurement guidance.

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