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Sheet over 3 mm is not a membrane, it is a structure. Oven sag, pressure forming, wall retention across a deep draw and the cooling that sets the cycle.
Cut length error is a stack of small contributions plus one large predictable one. Where the millimetres go and which of them you can actually remove.
Rheology, pressure drop, cavity balance, gate freeze, cooling. What each study answers, how to run it, and why running them out of sequence wastes the data.
Solid rod is the hardest simple profile there is. Why the core, not the surface, sets the cooling length — and where voids and bend actually come from.
Thermoformed parts do not hold the mould they were formed on. Shrinkage, spring-back and the compensation that has to be built into the pattern.
The calibrator is a wear part, not tooling you buy once. Vacuum slot layout, water flow, surface finish and the signs that a sleeve is costing you tolerance.
Corrugated conduit is a vacuum forming process hiding inside an extrusion line. How the mould blocks, the air pressure and the wall distribution interact.
Why a colour approved on a plaque fails on the part: let-down ratio, shear history, regrind and the measurement geometry that decides pass or fail.
Cooling is 45-70% of the cycle. How sheet thickness, mould temperature, air assist and demould temperature set the achievable cycle — and where the shortcuts fail.
A colour change costs more in scrap than in labour. The purge sequence, the mechanical cleaning no compound replaces, and how to get from black to natural in one pass.
Running two or four profiles through one die doubles output only if the flow is balanced. Land length, manifold design and thermal zoning across cavities.
Undervented tools leave read-through and trapped air; overvented tools leave marks. Hole size, spacing, location and the materials that need vented tooling.
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