RFQ-Leitfaden für kundenspezifische Frästeile

Vorteile

Defined use

Explain the assembly and features that control fit or function.

Aligned files

Use the same units, material, quantity, and revision on model and drawing.

Messbare Abnahme

Mark critical dimensions, tolerances, inspection, and requested records.

Transparent quote

Confirm included operations, exclusions, finish, packaging, and timing assumptions.

Custom milled parts: a practical project handoff

Explain what the part must do

Describe the assembly, mating components, and features that affect fit or function. State whether the order is a prototype, replacement, or repeat job and identify any requirements that change between sample and production quantities.

Keep model and drawing in sync

Provide the current model and drawing with matching units, part number, revision, material, quantity, and datum scheme. Mark important holes, pockets, profiles, threads, and surface requirements. Resolve mismatched dimensions before asking suppliers to quote.

Separate critical dimensions from notes

Identify which features determine acceptance and which are reference only. State tolerance requirements on the drawing and name any requested inspection reports. Avoid relying on broad phrases such as precision or high quality without measurable criteria.

Define included work

List finish, deburring, marking, assembly, outside processing, packaging, and documentation requirements. Ask the supplier to confirm what is included and identify assumptions or exclusions.

Compare the proposal against the RFQ

Review material, quantity, revision, operations, inspection, finish, packaging, shipping, and timing assumptions. Ask questions about the quote before approval and keep any changes traceable to an updated drawing.

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Häufig gestellte Fragen

What belongs in a custom milled parts RFQ?

Include a current model and drawing, material, quantity, revision, functional features, finish, inspection, and required secondary operations.

How should I communicate tolerances?

Place required tolerances on the drawing, identify the functional features, and state which dimensions control acceptance.

Should I send one model or multiple revisions?

Send one approved current revision and label it clearly. If alternatives must be compared, separate them and state the differences.

How do I review a custom milling quote?

Check the material, revision, quantity, included operations, finish, inspection, records, packaging, shipping, and stated exclusions.

What factors influence the cost and lead time for custom milled parts?

Several key factors determine cost and timeline. Complexity is a major driver: intricate designs with tight tolerances and deep pockets require more machine time and specialized tooling. Material choice significantly impacts raw material cost and machinability. Quantity affects unit price due to setup amortization—higher volumes reduce cost per part. Lead time depends on the shop's current workload, the part's complexity, and material availability. Secondary processes like plating or heat treatment add both time and cost. To optimize, discuss your budget and deadlines upfront with your manufacturer. They can often suggest design tweaks (simplifying features, adjusting tolerances) or material alternatives to achieve a balance of performance, cost, and speed.