Nitinol Photo Etching

Nitinol photochemical etching is a relatively new development in the etching industry and E-Fab is one of the companies that successfully etch nitinol materials. We currently hold contracts with some of the top medical suppliers in the world and is ISO certified and ITAR registered.

Nitinol is an alloy that consists of nickel and titanium that are roughly equal in atomic percentage. This nickel-titanium alloy is a common material used in medical equipment due to its super-elasticity and biocompatibility. Biocompatibility is when a substance is accepted by the human body, such as the nickel in the nitinol alloy. If there is too high a concentration of nickel it can be harmful to the body, luckily the nickel and titanium in nitinol form an intermetallic compound chemically locking the substance so there is no risk of nickel release.

The key benefit of nitinol microchemical milling is the unique shape memory and super-elastic properties. It can remember and return to its specific shape after deformation when exposed to heat. For example, if a piece of nitinol wire is deformed to a coil shape at a temperature below its transformation points, the coil will reconstruct to its original shape when it is heated above its transformation temperature. The super-elasticity is ‘rubber-like’ elastic making it possible to be used in a variety of projects.

Our nitinol etching services can create common shapes such as sheets, tubes, and wires. Nitinol photochemical machining has revolutionized the way high-performance industries, especially medical devices, manufacture solutions. Photochemical etching is used in applications such as orthopedic implants, orthodontic implants, graft filters, graft support, watch springs, golf club inserts, and stents.

E-Fab is proud to be one of the few companies across the world that offer nitinol etching services. We have been working on research projects and the development of this process to produce high-quality materials to comply with ISO and ITAR regulations for use in highly sensitive applications. When performing any nitinol photochemical etching services, we have developed a safer process of constructing materials by making sure that everything is clean and do a thorough automated visual inspection of the equipment.

E-Fab works with a broad range of thicknesses of nitinol to create the ideal product every time. Our advanced nitinol etching services retain the integrity of the alloy without producing heat-affected zones or burrs. Our team of highly trained representatives will help you find the best design for your specific project. With two decades and counting under our belts, we pride ourselves on being your supplier for alloys and other material options for all of your products. As an industry leader in photochemical machining, we ensure each manufactured material or component meet each exacting requirement, even tougher etching surfaces like tungsten

Nitinol Etching Capabilities
Panel SizeMin. 6” x 6”, max. 12” x 18”
Panel ThicknessMin. 0.001”, max. 0.030”
Hole SizeMin. 0.006” or 125% of material thickness
SpacingMin. same as material thickness
Inside & Outside RadiiInside: Approx. 80% material thickness Outside: Material thickness
Center-center hole distanceDIA + material thickness
Etch Tolerance± 10% material thickness, no less than ±0.001"

Industries and Applications

E-Fab can etch and form nitinol to fit applications across various different industries and applications. We’re proud to supply parts and services for the following industries:

  • Aerospace
  • Electrical machinery
  • Electronics
  • EMI and RF shielding
  • Medical
  • Microwave communications
  • Military and defense
  • Semiconductors
  • Telecommunication

Contact Us Today to Learn More About Our Capabilities

Our services are not limited to nitinol and we would be happy to work with you to find the best solution for your next project.

We’re proud to have an ISO 9001:2015-compliant facility with strict quality management standards. Our additional services include:

  • Deburring
  • Photochemical machining (PCM), or Etching
  • Micromachining processes
  • Milling
  • Prototype and mass production runs
  • Tooling and tooling modification
  • Forming
  • Plating