Injection Molding Drag Marks: Who Owns the Problem?
Drag marks don’t become expensive when they show up on parts. They become expensive when three vendors all stare at the same defect photo, but everyone claims it belongs to someone else.
We see this constantly with new tooling launches and transfer programs: the buyer leans on the molder because the molder shipped the parts, even when the real cause was built into the steel or the geometry months earlier.
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