Purchasing & Project Control

A split delivery divides one order into more than one release. Keep the quantities, part identities and required records tied to each shipment. An accepted first release should not silently be treated as acceptance of everything still in production.

An order for ten kits is not an order for ten of every listed item unless the kit definition says so. A carbon fiber assembly-kit enquiry should state the quantity of each component per set, the number of sets and any separately supplied spares.

A nominal carbon sheet size does not necessarily define the usable area for a finished blank layout. Clarify edge allowances, excluded regions and the required orientation before calculating how many parts a sheet can supply. A compact drawing arrangement is not yet a production yield guarantee.

When a tool produces more than one part per cycle, cavity identity can be useful traceability information. Define whether the order requires it and how it will be recorded. A batch number alone may not distinguish which tool location produced an observed feature.

A decision to accept a specific deviation should identify the affected parts and requirement. It does not automatically change the drawing for future production. Keep the disposition of existing parts separate from the controlled definition used for the next order.

A drawing showing both millimetres and inches needs a clear rule for which value governs. Rounded secondary dimensions should not become a second, conflicting acceptance requirement. Keep units and the controlling definition visible on the released drawing.

Paying for a mould does not, on its own, define its ownership, storage arrangements or production-release status. Put those commercial and technical questions into separate records before tooling work starts. This avoids relying on one vague “mould approved” message.

An accredited laboratory is assessed for activities within its accreditation scope. That does not turn every test it offers into an accredited result, or make the tested component a certified product. Read the scope alongside the proposed test.

A carbon fiber component can retain the same outline while its reinforcement, resin system or manufacturing route changes. A controlled substitution review identifies the proposed change and checks it against the agreed requirements before the affected work is released.

A safety data sheet explains hazard-related information for an identified material. A technical data sheet describes product characteristics and, where supplied, processing or application information. They should not be treated as interchangeable attachments to an enquiry.

A certificate of conformity records a declaration against identified requirements. A test report records a particular test and its results. One document may refer to the other, but asking for a “certificate” without defining its purpose can produce the wrong evidence.

Freezer life and out life are different material-control terms. Their limits and conditions come from the specific prepreg supplier documentation. A remaining freezer-life figure alone does not tell a production team how much permitted out-time remains.