Product Analysis & DFM
We review shrinkage, draft, parting line, wall thickness, ribs, bosses and gate location before steel is cut.
Resources / Mold Manufacturing
Injection Mold Manufacturing Process: From Design Review to FAI
A practical buyer guide to how Moldinno reviews plastic parts, selects tool steel, machines cavities, assembles mold structures and validates T0/T1 samples before production.
Manufacturing Process
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What happens before a mold becomes a production tool?
A mold is not only a steel block. It is a sequence of engineering decisions. The earliest decisions—shrinkage, parting line, draft angle, wall thickness, gate position and tool steel—directly affect later machining, fitting, sample quality and production stability.
Steel Selection & Rough Machining
Tool steel is selected according to resin, expected volume, corrosion risk, polishing requirement and mold life target.
CNC / EDM / WEDM
CNC forms the cavity and core geometry. EDM supports narrow slots and deep features. WEDM is used for pins, inserts and precision cut-outs.
Fitting & Mold Assembly
Slides, lifters, ejection, parting surfaces, guide systems and inserts are fitted to support stable mold action.
Cooling & Ejection Review
Water channels and ejection balance are checked because they affect cycle time, warpage, sticking and part deformation.
T0 / T1 Trial & FAI
Trial samples are reviewed for flash, sink, warpage, dimension, appearance and functional fit before production release.
Real Process Video
EDM / precision machining evidence
Real workshop video helps buyers see the machining environment and understand how mold components are prepared before trial samples.
Machining Detail
Tooling accuracy is built step by step
Complex mold components often require multiple machining methods and careful process control.
Need a mold process review before quotation?
Send drawings, resin target, annual quantity and appearance requirements. We will review the manufacturing path before giving a practical quote.
Common Questions
Injection mold manufacturing FAQ
When should mold design be approved?
After DFM questions, cavity direction, gate, cooling, ejection, steel and component assumptions are sufficiently clear.
Why are several machining methods used?
CNC, EDM, wire cutting, grinding and fitting serve different geometries, surface and accuracy requirements.
What is checked at T0?
Basic filling, mold action, flash, sink, warp, dimensions and major appearance or assembly issues are reviewed.
When is a mold ready for production?
After agreed sample issues are closed, acceptance criteria are met and the process and quality plan are confirmed.