Articles and Process Guides

Independent educational guides on injection molding process knowledge, training, tooling qualification, and production engineering. Articles are organized around historical WJT Associates topic areas.

Historical context

WJT Associates and Injection Molding Process Knowledge: What the Historical Site Still Teaches

A buyer- and processor-focused guide to the historical WJT Associates themes: injection molding process discipline, tooling qualification, troubleshooting, training, and production engineering.

Read the training guide

Training and process discipline

Is Injection Molding Training Worth It? A Practical Guide for Molding Teams

A practical guide to evaluating injection molding training ROI, learning motivation, process discipline, setup sheets, scrap reduction, and shop-floor behavior.

Review the process-readiness checklist

Troubleshooting and process discipline

Troubleshooting Flash in Injection Molding: Process Discipline Before Machine Changes

A practical framework for diagnosing and eliminating flash in injection molding. Covers root cause logic, process window discipline, mold vs. machine separation, and why random setting changes make flash worse.

Read the troubleshooting framework

Tooling qualification and validation

Tooling Qualification and Molding Validation: What It Means to Know a Mold Is Ready

A practical guide to injection mold qualification, T1/T2/T3 sampling discipline, process window documentation, setup sheets, and what buyers and processors should expect before a mold is approved for production.

Read the qualification guide

Profitability and production management

Profitable Injection Molding Operations: Where Process Discipline Meets Business Discipline

A practical guide to improving profitability in injection molding through quoting discipline, documented process windows, setup control, customer management, and better separation of technical and commercial problems.

Read the operations guide