Process & Quality
Design for
Manufacturability (DFM)
The work that prevents the problems. PSI applies DFM before steel is cut and through tool transfers — addressing the constraints that cause variation, cosmetic failures, and unstable output.
Applied before tooling
Tool transfer specialist
reduced engineering changes
Why DFM Matters
When Part Geometry Aligns to Molding Reality
Most molding problems aren’t manufacturing problems — they’re design problems discovered too late. Wall thickness transitions that drive sink. Draft angles that fight ejection. Gating positions that create flow imbalance. These aren’t surprises. They’re predictable, and they’re addressable before tooling begins.
PSI’s DFM process is not a checklist review. It’s a working session between engineering and tooling expertise — applied at quoting, at program launch, and whenever a tool transfers into PSI’s facility with a history we need to understand and stabilize.
“When part geometry is aligned to molding reality early, programs launch more predictably and stabilize faster — with fewer engineering changes, lower scrap rates, and better surface consistency.”
When We apply DFM
New Program Quoting
Before a tool is designed — when changes cost nothing and impact everything.
Tooling Design Review
After part design is locked — reviewing gate placement, cooling strategy, and ejection approach before the tool is built.
Tool Transfers
Using process history and known issues to target what needs to change at PSI.
Program Relaunches
Connecting DFM findings to a practical stabilization plan before production resumes.
What we address
Three Areas Where DFM Delivers
PSI’s DFM review covers the three constraint categories that account for the majority of program instability, cosmetic escapes, and late engineering changes.
Reduce Late Engineering Changes
- Review draft angles and undercut exposure
- Evaluate wall thickness transitions that influence sink and warp
- Align gating implications and flow balance to part requirements
Protect cosmetic and functional surfaces
- Assess ejection strategy and surface protection approach
- Confirm cosmetic criteria and inspection approach for visible components
- Identify tooling details that affect appearance consistency
Speed tool transfers and relaunches
- Use available process history and known issues to target what matters
- Align critical-to-quality dimensions to verification before release
- Connect DFM findings to a practical stabilization plan
The PSI Difference
Engineering Expertise Behind Every Review
DFM at PSI isn’t a sales tool — it’s a working discipline applied by the same team that will run your program.
Tooling & Process Knowledge Combined
Our DFM reviews are conducted by engineers who understand both part design constraints and what actually happens inside a mold. That combination is what makes the findings actionable rather than theoretical.
Applied at the Right Moment
DFM has the most leverage before tooling begins and during tool transfers. PSI structures its reviews to happen at these high-value moments — not as a post-production corrective exercise.
Documented & Connected to APQP
DFM findings feed directly into the APQP documentation framework — control plans, PFMEAs, and first article inspection criteria all reflect what the DFM review identified as the critical risk areas.
Collaborative, Not Presscriptive
We work with your engineering team — not around them. DFM reviews are structured as working sessions where our manufacturing expertise informs design decisions, without overriding the functional intent of the part.