Meaning
Quality documentation compiled prior to commercial production authorization records all dimensional and material compliance validation data for an injection mould. A complete verification package designated as the tooling acceptance dossier confirms that mould construction matches technical specifications and contract requirements. This documentation package governs tool signoff, baseline quality records and preventive maintenance schedules between toolmaker and moulder.
The dossier scope applies strictly to tooling design and qualification records, excluding ongoing part production quality logs.
Trial Verification
Processing logs generated during initial mould trials record injection pressures and melt temperatures used to produce compliant parts. Documenting target process windows ensures the moulder can replicate baseline part quality on production presses. Steel modification histories and cavity dimensional adjustments are tracked within trial logs to account for shrink corrections.
Including resin datasheet compliance and regrind ratio limits verifies that processing parameters reflect material supplier requirements. Complete trial documentation establishes clear responsibility if part defects appear during full scale manufacturing. Tooling signoff requires matching trial part dimensions against engineering drawings under capability studies.
Cavity Measurement
Full dimensional inspection reports covering every cavity confirm core and cavity steel tolerances before tool shipment. Coordinate measuring machine scans verify critical part dimensions and wall thicknesses across multi cavity moulds. Documented steel dimensions serve as a baseline for measuring tool wear over extended production lifecycles.
Signoff Approval
Formal signoff documentation signed by tooling and procurement managers authorizes final tool payment and shipment. Retaining steel certification sheets and heat treatment logs protects buyers against material defects. Complete acceptance dossiers simplify tool transfers between moulding facilities.
