What Aerospace Additive Manufacturing Costs, and What Drives It
A printed aerospace part is priced on machine time, powder, post processing, inspection and qualification, and for flight hardware the steps after the printer usually decide the total. The part class and how the build is laid out set most of the cost before anyone quotes.
Updated
The short answer
A printed part costs what its share of a build plate, its powder, its heat treatment, its machining, its inspection and its qualification paperwork add up to. Published cost studies agree that machine time is the largest share of the build itself, but they mostly stop at the printer, and on flight hardware the work after the build is where quotes diverge.
There is no public price list for aerospace additive manufacturing, and we will not invent one. This guide walks through each driver, explains why it moves the price, and shows what you control. For when to print at all, see our additive manufacturing service page and the machined versus printed comparison.
How an additive quote is built
Most suppliers build an AM quote from six blocks. Asking for them as separate lines is the fastest way to compare two quotes on the same part.
- Build preparation: reviewing the model, choosing orientation, designing supports, nesting the plate and slicing the build file.
- Machine time: hours on the printer, priced to recover the machine, gas, maintenance and the operator. Your part pays for the share of the plate it occupies.
- Material: powder or wire consumed, plus powder that cannot be reused under the supplier's reuse rules.
- Post processing: stress relief, removal from the plate, support removal, powder removal, HIP, heat treatment, finish machining and surface finishing, often at several shops.
- Inspection and testing: CT or other NDT, witness coupon testing, dimensional inspection and first article.
- Qualification and records: part production plan, build records, certs and any preproduction article your program requires.
Cost drivers at a glance
The table covers the drivers that move an aerospace AM quote the most. The sections after it explain each one.
| Driver | Why it moves cost | How the buyer controls it |
|---|---|---|
| Z height and build volume | Powder bed time scales with the number of layers, so a tall part costs machine hours even when little metal is melted | Allow the supplier to choose orientation, or state which directions are load critical so orientation can be optimized around them |
| Nesting | Parts on a full plate share recoating time; a part alone on a plate carries the whole build | Order quantities that fill a plate, combine part numbers in one build, and fix the layout early on flight work |
| Machine class | Larger envelopes and more lasers cost more to own, so the hourly rate rises | Send the envelope and quantity so the supplier picks the smallest machine that fits the plate |
| Material and powder reuse | Titanium, nickel and specialty alloys cost more and need inert handling; reuse limits retire powder | Use an alloy the supplier already runs on a qualified process, and accept the supplier's reuse protocol when your spec allows |
| Supports and orientation | Supports add build time, material and removal labor, and leave surfaces that need finishing | Design self supporting angles, avoid supports in internal passages, and mark which surfaces may carry support witness marks |
| Stress relief and HIP | Batch furnace and HIP cycles at outside vendors carry lot charges and queue time | State whether HIP is required by your class or spec, and group parts into one HIP lot |
| Heat treat | Another furnace cycle, record and verification test | Name the material specification and condition so the cycle is quoted once, correctly |
| Support removal and finish machining | Hand work plus awkward fixturing for every critical surface | Limit machined surfaces to those the function needs and add machining stock and datum features in the design |
| CT and witness coupons | Scan time grows with part size and resolution; coupons need testing at a lab | Define the flaw size that matters and the coupon plan in the RFQ |
| Qualification class | Flight classes add a qualified process, property data, preproduction articles and records | Assign the class before the RFQ and do not classify non flight parts as flight |
| Part consolidation | One printed part can remove welds, brazes, fasteners and inspections | Price the whole assembly you replace, not one detail part |
| Polymer versus metal | Polymer machines and post processing cost far less, but flammability and outgassing data add their own steps | Use polymer wherever the loads, temperatures and class allow it |
What published cost studies say
The best neutral summary we found is NIST Special Publication 1176, a December 2014 literature review of AM costs by Douglas Thomas and Stanley Gilbert. Its main finding for metal parts: the machine is the largest cost, and labor on the printer is small.
- Machine share: across the scenarios NIST charted from a 2012 activity based cost model of a metal part by Lindemann and colleagues, machine costs averaged 62.9 percent of the part cost and ranged from 45 to 78 percent. Material averaged 18.0 percent, post processing 8.4 percent, preparation 5.4 percent, oven heating 3.3 percent and build process fixing 1.9 percent.
- Material sensitivity: in the same model, raising the material price from the base of 89 euros per kilogram to 600 euros per kilogram made material 46 percent of the cost, the only scenario where it beat machine cost.
- Labor: NIST notes that Hopkinson and Dickens estimated labor at 2 percent of cost and Ruffo and colleagues at 2 to 3 percent, with more labor buried inside machine and material costs.
Read these numbers for what they are. They are more than a decade old, they model the build rather than a flight part, and their post processing lines do not include CT, witness coupon testing, finish machining of interfaces or qualification under a standard like NASA-STD-6030. On a flight part those steps can outweigh the build. The studies are still useful for one thing: they show that anything that makes better use of machine hours, such as nesting and lower build height, lowers cost on every part.
Build volume, Z height and nesting
In powder bed fusion, every layer is recoated across the whole plate, so time depends heavily on how tall the build is, not only on how much metal is melted. A tall, thin part can cost more machine time than a short, bulky one.
NIST's review states that fully using the build chamber significantly reduces per unit cost, and it cites work showing that part orientation alone changed energy use by as much as 160 percent. Orientation that lays a long part down shortens the build but may add supports and change the direction of weaker properties, so it is an engineering choice, not just a pricing one.
Nesting is where buyers have the most control. A single part on a plate pays for the full build. Several parts, or several of your part numbers, on one plate share it. Two cautions apply on flight work. First, under NASA-STD-6030 a change to the build layout is listed among the changes to a part production plan, so a layout used for qualification should be kept, not reshuffled to fit other work. Second, the standard requires witness specimens in every independent build, so each extra plate adds coupons and testing. Ordering in plate sized quantities usually beats splitting a release into several small builds.
Machine class
Bigger and faster machines cost more per hour; whether they cost more per part depends on how full the plate is. Match the machine to the part envelope and the quantity.
NIST notes that early studies put typical metal system prices around $1.0 million against about $0.1 million for polymer systems, which is one reason metal machine time is billed so much higher. Larger envelopes and multi laser machines carry higher purchase and running costs. For a small part in low quantity, a smaller machine with a full plate is often cheaper than a share of a large one.
Machine class also affects qualification. NASA-STD-6030 requires a qualified material process for each AM machine, so the cheapest machine in a shop may not be the one qualified for your alloy. Moving a qualified part to a different machine can mean new qualification work, which costs more than any hourly savings.
Material, powder cost and reuse rules
Alloy choice sets the powder price, the handling cost and how many suppliers already run it. Reuse rules then decide how much of the powder bought for your job can be used again.
Titanium and nickel alloys need inert gas handling and careful oxygen control, and less common alloys may need a dedicated powder purchase before your build can start. If your part is the only job in that alloy, part of that buy may land on your quote.
NASA-STD-6030 shows what disciplined reuse looks like. For candidate Class A and B processes, the supplier must define reuse metrics for each machine, set reuse limits, prove through material characterization that powder at the limit still performs, sieve used powder and blend it with virgin powder after every build cycle, and retire a blend from production once it reaches the limit. Adding virgin powder to bring out of spec reused powder back into specification is not allowed. These controls protect the part, and they also mean some powder is retired rather than reused, which is a real cost. On non flight work, a looser reuse protocol may be acceptable; say so if it is.
For alloy background, see our titanium alloys and nickel superalloys pages.
Supports and orientation
Supports cost three times: printing them, removing them, and finishing the surfaces they touched. Designing them out is often cheaper than paying for them.
Downward facing surfaces below the process's self supporting angle need supports, which add layers of melted material, build time and powder use. After the build, supports are cut or ground off by hand, and the surfaces they leave are rough and may need machining or polishing. Supports inside a passage can be impossible to remove, which forces a redesign or a different orientation. NASA-STD-6030 also notes that residual powder left in a part may not be removable after HIP, so internal passages have to be verified clear before that step, which adds inspection time.
Orientation trades supports against build height and against the direction of weaker properties. Tell the supplier which load directions and surfaces matter, and let them propose an orientation rather than fixing one on the drawing without reason.
Stress relief, HIP and heat treat
Thermal post processing is usually done in batches at outside vendors, so it adds lot charges, freight and queue time, not just furnace hours.
- Stress relief is done with the parts still on the plate so they do not distort when cut off. It ties up the plate and a furnace.
- HIP closes internal porosity. NASA-STD-6030 requires HIP in the material process for metallic Class A, B1 and B2 parts, with exceptions only when evidence shows HIP gives little benefit for the material and use, or when the part is too large for available HIP facilities, and the omission must be documented. Large parts can therefore be limited by vessel size as well as cost.
- Heat treatment brings the material to the condition its specification requires. ASTM F3301 covers thermal post processing of powder bed fusion metal parts.
Grouping parts into one HIP and heat treat lot spreads the lot charge. Each step needs a furnace record tied to serial numbers. Our heat treatment reference explains what a good record shows.
Support removal and finish machining
Every flight surface that seals, locates or carries fatigue load is usually machined after printing, and printed shapes are awkward to hold. This is often the largest labor line on a printed flight part.
Parts come off the plate by wire EDM or saw, supports come off by hand, then interfaces, bores, threads and sealing faces are machined. Freeform shapes may need custom fixtures or soft jaws, and the machinist has to find datums on a rough surface unless the design adds datum pads. Leave machining stock where it is needed and nowhere else. A part that is mostly critical surfaces will need nearly as many setups as a part machined from bar.
For a labor reference, the Bureau of Labor Statistics reports May 2025 median hourly wages in aerospace product and parts manufacturing of $30.84 for machinists and $27.47 for heat treating equipment setters, operators and tenders. Billed shop rates are higher because they also cover machines, tooling, quality staff, facilities and profit. Machining cost drivers are covered in depth in our aerospace machining cost guide.
CT, witness coupons and first article
Inspection on printed flight parts is a large and fixed cost per build, so it hurts most on small quantities. Define it precisely so it is priced once.
- CT scanning: scan time and cost rise with part size, density and the resolution needed to find the flaw size you care about. Agree the flaw size and acceptance limits before ordering; ASTM E3166 guides NDT of metal AM parts but sets no accept or reject criteria.
- Witness coupons: NASA-STD-6030 requires witness specimens in every independent build for the types and quantities in its witness testing tables, processed with the parts and tested to its acceptance methods. The quantities by class are summarized on our machined versus printed page.
- First article: an AS9102 first article on the first part and again after changes; see our first article guide.
The NDT methods and their limits on printed metal are explained on our nondestructive testing page.
Qualification class under NASA-STD-6030
The part class is the single biggest cost decision on a printed flight part, because it decides how much qualification, testing and documentation the supplier must carry. Set it before the RFQ.
| Class | What the buyer pays for |
|---|---|
| Class A and B (high consequence and high reliability) | A qualified material process for each machine, a material property suite for allowables, HIP for A, B1 and B2 metallic parts, witness testing on every build, NDE, preproduction articles and a part production plan, with new preproduction builds when the qualified process changes |
| Class C (negligible consequence) | A simplified control plan and part production plan; the standard removes the requirements for NDE, preproduction articles and the statistical property suite, and a certificate of conformance is a prerequisite for acceptance |
| Non flight (tooling, prototypes, most GSE) | Whatever you specify: often material certs and a dimensional report, without flight qualification |
NASA-STD-6030 notes that Class C parts must still meet NASA-STD-6016 needs such as flammability, toxic offgassing and vacuum outgassing. If your program uses MSFC-SPEC-3717, AMS 7003 or its own specification instead, name it, because a supplier qualified to one may not be qualified to another. A shop without an existing qualified process for your alloy and class will price the qualification into your first order or decline.
Part count consolidation savings
AM saves the most money when one printed part replaces an assembly, because every weld, braze, fastener, detail part number and joint inspection removed is cost removed. Compare quotes against the whole assembly, not against one machined detail.
In August 2013 NASA test fired a printed rocket engine injector made by selective laser melting from nickel chromium alloy powder. NASA said the printed injector used two parts, where a similar injector tested earlier had 115, and that fewer parts require less assembly effort, giving complex printed parts the potential for significant cost savings. Our comparison page covers two more consolidation cases, the RS-25 pogo accumulator and GE's LEAP fuel nozzle tip.
To price consolidation fairly, add up the assembly you would retire: each detail part's machining, the welding or brazing, the weld inspections, the assembly labor, the extra drawings and part numbers to maintain, and the leak tests. Then compare that with the printed part's build, post processing, inspection and qualification. A redesign for AM costs engineering time once, so the savings case is stronger when the part flies on more than one unit.
Polymer (ULTEM 9085, PEKK) versus metal
Polymer parts are usually far cheaper than metal: cheaper machines, no plate removal, no HIP and little machining. Their cost sits instead in material data, flammability and outgassing evidence, and certified material grades.
- Machine cost: NIST's review puts typical early polymer systems near $0.1 million against $1.0 million for metal, and cites Atzeni and colleagues finding that machine cost was 59 to 66 percent of a plastic part's cost, so machine time still dominates the build.
- Certified grades: Stratasys offers ULTEM 9085 in a certified grade with the traceability aircraft programs expect. That traceability is extra paperwork on every lot, so ask for it where the program requires it, not by default.
- Outgassing and flammability: spacecraft parts need ASTM E595 outgassing data on the exact material, and sometimes testing of parts from the actual process or a bakeout. Stratasys positions its PEKK based Antero 800NA for spacecraft parts that need low outgassing. Getting that data for your grade, or testing your own parts, is part of the cost.
- Class limits: NASA-STD-6030 does not allow polymer parts in Class A, so a part that must be Class A is a metal part regardless of cost.
For polymer families and properties, see our engineering plastics page. Many GSE covers, ducts and fixtures can move from metal to polymer and drop most of the post processing cost.
Ways to lower AM cost without lowering the bar
- Assign the part class, or state that the part is non flight, before you request quotes.
- Ask suppliers which alloy and machine combinations they already have qualified, and design to one where possible.
- Order in quantities that fill a plate, and keep a qualified build layout fixed.
- Design out supports, especially inside passages, and add datum pads and machining stock only where needed.
- Group parts into shared stress relief, HIP and heat treat lots.
- Define the CT flaw size, coupon plan and first article requirement in the RFQ.
- Price consolidation against the full assembly it replaces.
- Use polymer where loads, temperature and class allow.
- Ask for build, post processing, inspection and qualification as separate lines.
If a fabricated part competes with a printed one, our sheet metal fabrication cost guide covers that side. Our metal additive manufacturing reference covers the process engineering.
Get a printed part quoted on its real class
Send the model, the drawing, the part class or flight status, the material specification and the quantity through the additive manufacturing quote form. The class and quantity decide whether a supplier needs to qualify a process, how many builds you pay for and what inspection is included, so stating them first is what makes the quotes comparable. A person replies within 1 business day, and rush requests are prioritized. We do not run printers. We match the part to suppliers whose qualified process fits, flow your requirements down, coordinate HIP, heat treat, machining and inspection across shops, and give you one quote, one point of contact and one purchase order. We do not promise a price or a supplier before we see the part, and we will tell you if machining looks cheaper. Controlled models never go through the form; see confidentiality and controlled programs.
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Questions
How much does a 3D printed metal aerospace part cost?
There is no public price list, and the range is wide. A non flight titanium bracket and a Class A flight manifold can come off the same machine and differ in price many times over, because the flight part adds HIP, finish machining, CT, witness coupon testing and qualification records. Send the class, material specification, quantity and inspection requirements so every supplier prices the same scope.
What is the biggest cost in metal additive manufacturing?
For the build itself, machine time. NIST's 2014 review charted a metal part cost model where machine costs averaged 62.9 percent of the part cost and material 18.0 percent. Those studies stop at the build, though. On flight hardware, finish machining, CT, coupon testing and qualification can outweigh the printing, so judge a quote by its total, not by the machine rate.
Why does build height affect the price of a printed part?
In powder bed fusion every layer is recoated across the whole plate, so machine time depends on how many layers the build has. A tall part costs more hours even if it holds little metal. Laying a part down can shorten the build, but it may add supports and change the direction of weaker properties, so orientation is an engineering decision as well as a pricing one.
Does NASA-STD-6030 require HIP on every printed part?
No. It requires HIP in the material process for metallic Class A, B1 and B2 parts. Exceptions can be approved through the part production plan when evidence shows HIP gives little benefit for the material and use, or when the part is too large for available HIP facilities, and the omission must be documented. Class C and non flight parts follow whatever your specification requires.
Can a supplier reuse powder on my aerospace parts?
Usually yes, within a controlled protocol. For Class A and B work, NASA-STD-6030 requires reuse metrics per machine, defined reuse limits backed by material testing, sieving and blending with virgin powder after every cycle, and retirement of powder that reaches the limit. Topping up out of spec powder with virgin powder is not allowed. Ask for the supplier's reuse protocol and the reuse state of the powder in your build.
Is polymer additive manufacturing cheaper than metal?
Generally, yes. Polymer machines cost far less, and polymer parts skip plate removal, HIP and most machining. NIST's review cites typical early polymer systems near $0.1 million against $1.0 million for metal. The added costs for aerospace polymers are certified material grades, flammability evidence and outgassing data or testing. Polymer parts cannot be NASA-STD-6030 Class A.
When does part consolidation make AM cheaper?
When the printed part replaces an assembly. NASA reported that its 2013 printed injector used two parts where a similar earlier injector had 115, cutting assembly work. Add up the machining, welding, brazing, inspections, assembly labor and part numbers of the assembly you retire, then compare that with the printed part's total cost including qualification. A single simple part rarely wins on cost.
Related
Sources
- NIST Special Publication 1176, Costs and Cost Effectiveness of Additive Manufacturing, Thomas and Gilbert (December 2014)
- NASA-STD-6030, Additive Manufacturing Requirements for Spaceflight Systems (approved baseline, April 2021, PDF)
- NASA Technical Standards System, NASA-STD-6030 status page
- NASA, NASA Tests Limits of 3-D Printing with Powerful Rocket Engine Check (August 2013)
- ASTM F3301, Thermal Post-Processing Metal Parts Made Via Powder Bed Fusion
- ASTM E3166, Nondestructive Examination of Metal Additively Manufactured Aerospace Parts After Build
- U.S. Bureau of Labor Statistics, OEWS May 2025, Aerospace Product and Parts Manufacturing (NAICS 336400)
- NASA Technical Standards System, MSFC-SPEC-3717
- Stratasys, Antero 800NA PEKK data sheet
- SAE International, AMS7003A Laser Powder Bed Fusion Process
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