MuShield specializes in precision sheet metal hydroforming for mumetal magnetic shielding and high-performance alloy components. Using advanced deep draw hydroforming technology, we manufacture seamless magnetic shields and complex formed parts for the aerospace, defense, medical, electronics, utility, and scientific industries.
Our hydroforming capabilities support mumetal, HyMu 80, stainless steel, aluminum, Inconel, Hastelloy, tantalum, and other specialty alloys requiring precision forming and repeatable geometries.
In 2022, MuShield partnered with Beckwood Press Co. — a manufacturer of custom hydraulic and servo-electric presses, automation systems, and Triform precision forming equipment — to engineer and build a Triform 16-15-7DD deep draw hydroform press.
This investment replaced our original 12” Cincinnati Hydroform machine, which produced thousands of magnetic shielding components over a decade of operation for the medical, aerospace & defense, utility, and electronics industries.
The upgrade was a natural next step:
In addition to hydroforming mumetal magnetic shields, MuShield forms a wide range of common and exotic alloys for demanding applications requiring precision geometry and repeatable performance.
Additional features integrated into the new hydroforming system include:
Great mumetal magnetic shielding doesn’t happen by accident. It takes precision forming, repeatable processes, and a team that knows how to shape difficult materials into dependable solutions. Reach out to us today to get started on your hydroformed solution.
Post draw, the desired shape is formed with excess material creating a flange
A hydroform machine utilizes a forming punch machined to the inner dimensions of the desired sheet metal part and can make both simple and complex sheet metal shapes. Hydraulic pressure (up to 15,000 psi) behind a specialized rubber diaphragm provides the force required to wrap sheet metal material onto the punch as drawing force and motion is applied. The resulting large radii on the finished part is preferred from a magnetic shielding standpoint because the magnetic flux permeating through the magnetic shield turns easily on large radii and eliminates any chance for flux leakage.
Tooling cost is minimized since only one or two form punches are required for most piece parts and MuShield has in-house machines to build each tool, which will often last the life of the part cycle due to a hardening process done to the tool after it has been proven out in production. You will see consistency from part-to-part and production run to production run with tolerances of +/- .001″ on most dimensions.
Hydroforming can also be cost effective when comparing it to a fabricated part. For most hydroformed parts, the production steps are as follows:
While MuShield specializes in hydroforming mumetal and other magnetic shielding materials, we are not limited to just those. We hydroform materials such as stainless steel, brass, aluminum, inconel and other alloys on a daily basis.
If you have a design that you think would be a good fit for our hydroform, do not hesitate to contact us at info@mushield.com or 603-666-4433 to discuss your application further.
Hydroforming is particularly well suited for magnetic shielding applications because it allows complex geometries to be formed with large radii and reduced mechanical stress compared to conventional stamping methods. The large radii attracts that magnetic field while minimizing forming stress helps preserve the high magnetic permeability properties essential to effective magnetic shielding performance.
Deep draw hydroforming also provides:
These advantages are critical in industries such as aerospace, defense electronics, medical imaging, laboratory instrumentation, quantum technology, and other sensitive electromagnetic applications.
