Nuclear
Nuclear parts need to have a zero percent failure rate, which is why absolute predictability is needed for nuclear machining. When put under the most punishing conditions, including intense radiation, corrosive high-pressure steam, and extreme thermal cycling, you need a company that is dedicated to lean machining and predictability. The processes at LeanWerks meet the uncompromising requirements of the nuclear industry and provide precision-machined solutions for thousands of projects each year. We apply a lean philosophy to all industry-required parts, including traditional fission reactors and the emerging frontier of small modular reactors (SMRs). Learn more about our nuclear part creation process below.
Requirements Of The Nuclear Industry
The complexities of nuclear machining require high-end machinery and material science expertise. LeanWerks provides both of these requirements for our nuclear clients to help provide solutions that meet non-negotiable requirements.
One common requirement of the nuclear industry is radiological and chemical integrity. Your machine shop will need expertise in machining low-neutron-absorption materials and corrosion-resistant superalloys that will maintain stability in high-radiation zones. Nuclear parts also need to have a specific finish to prevent corrosion. Achieving sub-micron RA finishes to eliminate the risk of stress-corrosion cracking.
LeanWerks meets AS9100D standards and will provide documentation for full traceability of materials and process inspections. Nuclear components have no room for error, which is very important to every member of our team. We prioritize total quality in every part we deliver.
Critical Components For Reactor & Power Generation
The internal environment of a reactor coolant system (RCS) demands hardware that can withstand the test of time. LeanWerks utilizes 5-axis milling and multi-axis turn mill centers to machine parts for the nuclear industry in a way that minimizes risk. Single-piece geometries are the best way to ensure nuclear builds don’t fail from welds or other deterioration when being used.
LeanWerks specializes in a number of parts for large industries, including:
- Reactor Coolant Pump (RCP) Internals: Impellers, shafts, and seal housings that need to operate with zero vibration to prevent mechanical fatigue.
- Control Rod Drive (CDRM) Parts: Intricate latch and drive components requiring +0.0002” tolerances to ensure fail-safe operations.
- Valve and Instrumentation Hardware: High-pressure valve stems, plugs, and fittings machined from Stellite or Inconel X-750 to resist galling in high temperatures.
- Fusion Research Hardware: Vacuum vessel components and cooling manifolds for experimental fusion reactors where extreme vacuum integrity are paramount.
- Reactor Core parts: Tie plates and end caps that have 5-axis geometry and tight tolerances to maintain reactor core integrity.
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Nuclear-Grade Quality & Metrology
In a zero-defect industry, inspection should never be an afterthought; it is the final proof of performance. LeanWerks is equipped with a world-class meteorology lab featuring high-precision CMMs and a portfolio of state of the art equipment. The data-backed assurance will ensure that every tie plate, flange, or impeller meets the rigorous specifications. Choosing to partner with LeanWerks will help you meet the standards set by nuclear regulations and achieve the technical rigor required to power a carbon-free future.
Creating The Future With LeanWerks
We believe that precision is a byproduct of discipline, necessary for creating parts and geometries that are needed for high-stakes manufacturing. At our core, LeanWerks is a team of problem-solvers who have great satisfaction in conquering the “unmachinable.” We treat manufacturing as an integrated, flowing system rather than disconnected tasks. We are a long-term collaborator that will bring the world’s most ambitious designs to life. Our mission is to build the most precise and critical hardware required to advance modern society. Whether that is interior nuclear parts, defense mechanisms, or ways to improve your business, we dedicate the same precision to every job. Working with our team will contribute to a safer and more innovative future.
Frequently Asked Questions
How does LeanWerks manage “Work Hardening” when machining Inconel for nuclear parts?
Nuclear-grade superalloys like Inconel 718 harden rapidly under heat and pressure. We utilize high-rigidity DMG MORI equipment and advanced thermal management strategies to “cut under” the work-hardened layer, ensuring consistent tool life and, more importantly, maintaining the metallurgical integrity of your part.
Can you provide full material traceability for ASME Section III or NQA-1 style requirements?
Yes. Our quality system is designed for high-compliance industries. We maintain a digital thread for every component, including Mill Test Reports (MTRs), heat treat certifications, and detailed inspection travelers. We ensure that every piece of hardware is fully traceable back to its original melt.
What is the advantage of using “Done-in-One” machining for nuclear valves and fittings?
By using our 11-axis NTX Series multitasking centers, we can machine a complex valve body from a solid block or forging in one setup. This eliminates the “stacking error” between multiple operations, ensuring that sealing surfaces and internal bores are perfectly concentric—a critical factor in preventing leaks in high-pressure radioactive loops.