Autonomous Ribbon Refeeding System for Stress-Annealing Soft-Magnetic Nanocomposites

Nickolaus M. Bruno, NASA Subject Matter Expert

Description

Stress-annealing processes currently define the state-of-the-art for manufacturing high efficiency gapless filter inductors comprised of nanocrystalline soft-magnetic alloys. However, a continuous in-line process is often difficult to attain due to ribbon embrittlement and mode 1 fracture that originates at cast defects on the ribbon edges. This proposed design project seeks a modular subsystem useful for refeeding broken ribbon between two spools while winding, either entering or exiting a furnace under tension. Rewinding will be performed at room temperature and the ribbon tension at the time of failure is expected to be between 0 N and 250 N.

Figure 1 – Stress-annealing System

Figure 2 – Close-up of Zone 2 in Figure 1.

Project Objectives

Investigate current methods of refeeding metallic or non-metallic webs. Develop a compact solution to refeed, splice, and spool a broken web of 1-inch-wide x 20 micrometer thick metallic ribbon.

Design, build, and test a prototype.

Figure 3 – Proposed Schematic of Re-feeder.

Type of Project

Prototype – Funding of up to $5,000.00 is available for the selected institution.

Disciplines Required

Mechanical Engineering, Electrical Engineering, Robotics

NASA Gateway Registration

Faculty advisors, please make sure every member of your team completed the agreement form.

1. Click “Apply Now” (opens September 13, 2024).
2. If you have never created an identity in NASA Gateway, please click “Not a member? Sign up!”
3. Create your identity and sign up for the project you are planning to complete.

To access the Gateway Registration, faculty advisors click here.

Contact Information

Gerald Voltz
Education Program Specialist
Email: GRC-Ed-Opportunities@mail.nasa.gov

Phone: (216) 433-6656

Glenn Research Center – Office of STEM Engagement