Meaning
Set of formalized procedures that mark the official acceptance of a new mould by the quality and production departments. Tooling signoff protocols involve a series of checks that verify the mechanical function of the tool and the quality of the parts it produces. This process is the final gate before the mould is moved into full-scale production.
Part Approval
Protocol requires a full dimensional report on a specific number of consecutive shots. Tooling signoff protocols ensure that the part meets the visual standards and the functional requirements. If the samples fail, the tool is sent back for adjustment until it passes the check.
Mechanical Audit
Inspectors verify that the cooling lines do not leak and that the ejection system operates smoothly. Tooling signoff protocols include a review of the cycle time and the scrap rate achieved during the trial. The tool must demonstrate it can run at the quoted speed without intervention.
Documentation Handover
Final step is the transfer of the maintenance manual, spare parts list and the approved process window. Tooling signoff protocols create a record that the supplier has met their contractual obligations. Once the papers are signed, the liability for the tool performance often shifts to the production team.
This handover signifies that the mould is ready for commercial duty.
