Implementing Concurrent Engineering in Injection Molding

A Parallel Approach to Product Development

Concurrent engineering replaces the traditional step-by-step development model with a parallel workflow. Instead of waiting for design to finish before tooling begins, or for tooling before process planning starts, all disciplines move forward together.

Design, tooling, and processing teams share input from the beginning. That early alignment reduces downstream issues and keeps decisions grounded in real manufacturing conditions.

Concurrent engineering can be defined as follows:

“Concurrent engineering is the compression of the product development timeline through cross-functional collaboration — where design, tooling, and processing inform each other from concept to qualification.”

At Aprios, this approach is built into standard operations rather than treated as an exception.

Where Sequential Engineering Breaks Down

Traditional development follows a linear path: design, then tooling, then molding, followed by quality validation.

This structure limits feedback. By the time issues appear during processing, design and tooling decisions are already locked in. Adjustments become reactive, often leading to rework, delays, and inconsistent results.

That gap between stages creates inefficiencies that compound throughout the project.

How Concurrent Engineering Works in Practice

Aprios runs three streams simultaneously from the start.

Design focuses on DFM, critical-to-quality features, and material selection. Tooling evaluates gating, cooling, venting, and mold construction. Process engineering builds DOE strategies, estimates process windows, and defines machine compatibility.

Regular cross-functional reviews keep these streams aligned. Decisions are made with input from all perspectives, so manufacturability, validation, and long-term performance are considered together.

What Changes with Early Collaboration

When teams work in parallel, development timelines compress naturally. Fewer late-stage changes are needed, which reduces cost and shortens validation cycles.

Tools arrive closer to production-ready condition because DFM and flow analysis have already been addressed. First-pass yield improves since fewer unknowns remain during initial sampling.

At the same time, the reasoning behind design and process decisions is captured early. That context carries forward into validation and future projects.

Example Workflow at Aprios

Projects begin with a design kickoff where customer requirements, CAD data, and material preferences are reviewed. Early DFM analysis highlights risks before they become constraints.

From there, joint engineering reviews bring tooling, process, and quality teams into the conversation. Gating strategies, cooling layouts, DOE planning, and inspection methods are developed together.

A shared risk log tracks all decisions and changes. Weekly reviews keep progress aligned until design freeze.

Before validation begins, tooling and process inputs are already structured for IQ and OQ. As a result, initial samples closely reflect a validated process rather than an early-stage trial.

Systems That Support Concurrent Engineering

Aprios uses integrated tools to keep collaboration consistent.

Shared project dashboards connect DFM findings, tooling designs, and validation plans. CAD and Moldflow data are stored within a single project record, making information accessible across teams.

Standardized kickoff templates define responsibilities early, while MES workflows include cross-department approvals to maintain alignment.

These systems reduce delays and ensure that decisions made early remain visible throughout the project.

A Culture Built Around Collaboration

Concurrent engineering works when it becomes part of how teams operate, not just how projects are scheduled.

At Aprios, the same engineers involved in DFM and tooling reviews also participate in validation. Quality data from past programs feeds directly into new mold designs.

Communication across facilities follows consistent templates and shared systems, keeping teams aligned regardless of location.

This approach creates continuity from concept through production. You end up with processes that are ready to validate, not ones that require troubleshooting after the fact.

What Comes Next

Concurrent engineering sets the stage for clear roles and responsibilities across teams.

The next step looks at how designers, tooling engineers, process engineers, and quality teams contribute individually while staying aligned within a shared system.