How to RFI a Metal AM Bureau for Production

Why a Structured RFI Matters for Metal AM Procurement

Metal additive manufacturing quotes vary because bureaus interpret part requirements differently. A single step change or surface finish can shift cost and lead time. An AM service bureau RFI gives you a controlled way to compare providers on the same terms.

Without a defined process, you end up with inconsistent responses. One bureau quotes a raw build. Another includes machining and heat treatment. A third assumes you will handle first article inspection. These differences hide in the fine print and surface late in the project.

The goal is to get comparable numbers. You need to know what is included, what is excluded, and what the provider assumes about your part.

What to Include in Your Part Package

Send complete data before requesting a quote. Incomplete files force bureaus to make assumptions. Those assumptions show up as change orders or revised quotes later.

Include the following:

1. STEP or 3MF geometry with all features defined.
2. Material grade and alloy specification.
3. Tolerances and critical dimensions.
4. Surface finish requirements by zone.
5. Post-processing needs, such as machining, heat treatment, or coating.
6. Quantity and production schedule.
7. Inspection and qualification standards.
8. Packaging and shipping requirements.

For complex parts, add a note on orientation constraints. If a feature cannot be built in a certain direction, state it. If you have a preferred orientation, explain why. Bureaus use their software to evaluate build paths. Giving them context reduces back-and-forth.

How to Define Quality and Inspection Requirements

Quality requirements drive cost. A bureau that only does dimensional checking charges less than one that performs full metallurgical inspection.

State your acceptance criteria clearly. Do not just say “quality.” Specify what you need.

Common requirements include:

• Dimensional inspection per ISO 10360 or equivalent.
• X-ray or CT scan for internal defect detection.
• Surface roughness measurement on specific zones.
• Material traceability from mill certificate to finished part.
• First article inspection with full documentation.
• Non-destructive testing for critical features.

If you need material certificates, say so. Some providers include them. Others charge separately. This is where the Explainer: How Material Certificates Affect AM Pricing becomes relevant. Traceability costs money, and that cost should be visible in the quote.

How to Compare Lead Times from Metal AM Providers

Stated lead times rarely reflect the full process. A bureau may quote “ten days” for the build, but your part still needs post-processing, inspection, and shipping.

Ask each provider to break down the timeline. You want to see:

• Design review and orientation time.
• Build time.
• Post-processing time.
• Inspection time.
• Shipping time.

Also ask about capacity. A small bureau may have a free slot next week. A larger provider with a full queue may take longer. Lead time depends on the provider’s current schedule, not just the process time.

When you ask for a lead time, specify the quantity. A single part and fifty parts follow different paths. A bureau may build a single part quickly, but batch production requires different planning.

How to Ask for Qualification and Compliance Data

Service bureau qualification matters for production parts. You need to know the provider can meet your standards.

Request the following during the RFI:

• ISO 9001 or equivalent quality management certification.
• Process qualification reports for your material.
• Sample inspection reports from similar parts.
• Material traceability procedures.
• Non-conformance handling process.
• Change control procedures.

You do not need full audit details at the RFI stage. You need enough information to decide if a second-stage qualification is worth it. If your industry requires higher compliance, state that. A provider that cannot meet your standards should not be in the shortlist.

Criteria Table for Evaluating AM Service Bureau Quotes

Use this table to compare responses side by side. Fill it in only after you receive full quotes.

Criterion	What to look for	Why it matters
Material and process fit	Correct alloy, laser or electron beam, build parameters	Ensures the provider can build your part to spec
Price transparency	Itemized build, post-processing, inspection, shipping	Prevents hidden costs and surprise change orders
Lead time breakdown	Build, post-processing, inspection, shipping timelines	Gives you a realistic delivery date, not just a number
Quality documentation	Inspection reports, material certificates, first article data	Confirms the provider meets your acceptance criteria
Capacity and schedule	Current queue status, batch vs single part handling	Affects whether they can hit your production date
Change control	Clear process for design or spec changes	Protects you from scope creep and rework

When two bureaus quote similar prices, look at the lead time breakdown. When two bureaus have similar lead times, look at the quality documentation. The difference often shows up in the details.

Common Mistakes in Metal AM RFI Process

Most RFI problems come from vague requests. Here are the mistakes that cause the most friction.

• Sending geometry without material or tolerance data. The bureau guesses. You get a quote that does not match your needs.
• Asking for “best price” without defining scope. You compare apples and oranges.
• Not specifying quantity. A single part and a production run are different projects.
• Ignoring post-processing. Machining, heat treatment, and inspection add cost and time.
• Not asking for lead time breakdown. You assume the stated date includes everything. It usually does not.
• Skipping the qualification step. You save time now and deal with non-conformance later.

A good RFI takes effort. It also saves you from the Troubleshooting: Why Metal AM Quotes Keep Changing scenario. When you define the scope clearly, quotes stabilize.

How to Move from RFI to Selection

After you collect responses, score each bureau against your criteria. Weight the factors based on your project. If lead time is the driver, weight it heavier than price. If compliance is the driver, weight quality documentation heavier.

Do not pick the lowest price without checking the scope. A low quote often means missing steps. Ask the provider to explain any gap between their quote and the highest quote.

Once you shortlist two or three providers, request a sample part or a detailed qualification package. This is where the service bureau qualification process moves from paper to practice. You are testing whether their stated process matches their actual output.

Before you award the project, confirm the following:

• The quote matches your part package exactly.
• The lead time includes all post-processing and inspection.
• The provider can meet your material traceability requirements.
• The quality documentation meets your acceptance criteria.
• The change control process is clear and documented.
• The shipping and packaging plan is defined.

Decision Checklist for Awarding a Metal AM Project

Use this checklist before you sign off on a provider.

• Part package is complete and consistent across all quotes.
• All bureaus have quoted the same scope.
• Lead times are broken down by process step.
• Quality and inspection requirements are met.
• Material traceability is confirmed.
• Change control process is documented.
• Shortlist providers have passed second-stage qualification.
• Contract includes acceptance criteria and non-conformance handling.

The RFI is not just a pricing exercise. It is a qualification tool. The bureaus that survive the process are the ones you can trust with production parts.