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Overview. Magnets and magnetic materials are critical to our nation’s defense Weapons systems that use magnetic materials: Thomas & Skinner is the world leader in high-performance magnets and magnetic materials used in strategic weapons systems. Strategic Defense Applications: Magnetics.

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overview
Overview
  • Magnets and magnetic materials are critical to our nation’s defense
  • Weapons systems that use magnetic materials:

Thomas & Skinner is the world leader in high-performance magnets and magnetic materials used in strategic weapons systems

slide2
Strategic DefenseApplications: Magnetics
  • Aegis Radar -- used widely by Army and Navy
  • Valves in nuclear submarines
  • Hellfire missile guidance systems
  • Military aircraft, including F-18, F-22, F-35
  • Power klystrons
    • ground-based earth-to-satellite communications amplifiers (KPA’s) and troposcatter communication terminals
  • Minuteman IV ICBM
magnetics crib sheet hard magnets vs soft magnetic materials
Hard (Permanent) Magnets

Magnetic field WITHOUT an electric current

Three general types:

Alnico

Rare Earth

SmCo

NdFeB

Hard Ferrites

Soft Magnetic Materials

Magnetic field ONLY with an electric current

Multiple types, including:

Electrical steel

Soft Ferrites

Powdered iron

Magnetics Crib SheetHard Magnets vs Soft Magnetic Materials
thomas skinner inc
Thomas & Skinner, Inc.

1901 Company founded by John Esterline, EE professor at Purdue University

1923James Thomas & O.H. Skinner

acquired magnetics division

thomas skinner inc5
Thomas & Skinner, Inc.

Today Employee-owned manufacturer of

magnetic materials headquartered in

Indianapolis, Indiana.

Markets:

slide6
Thomas & Skinner, Inc.

Goal:

  • Provide the highest quality, domestically- produced custom magnetic components
    • Stay close to customer base
    • Maintain technological advantage
    • Avoid low-technology, low-price segments
      • low-quality and/or high-volume applications

Strategy:

Compete with anyone in the world for high- quality, high-performance magnetics, bar none

thomas skinner inc7
Thomas & Skinner, Inc.

• Soft ferrites

• Fairfield, NJ -- 68

Products:

• Alnico magnets

• Transformer laminations

Employees:

• Indianapolis, IN -- 136

• Osgood, IN -- 17

Exports to:

alnico
Alnico
  • Hard (permanent) magnet
    • Known for stability and operating temp. range
      • Max operating temp: 550° C (1000° F)
  • Base materials:
    • Aluminum
    • Nickel
    • Cobalt
    • balance of Iron
  • Cast and Sintered in Indianapolis
transformer laminations
Transformer Laminations
  • Soft (non-permanent) magnetic material
    • Regulates the voltage in electrical devices
      • Wrapped with copper wire
      • Creates a magnetic field
  • Base material: electrical steel (3.25% silicon)
    • US Mills:
      • AK Steel
      • Allegheny Ludlum
  • Products stamped in

Indianapolis

soft ferrites
Soft Ferrites
  • Soft (non-permanent) magnetic material
    • Regulates voltage in electrical devices
      • Wrapped with copper wire
      • Creates a magnetic field
    • Antennas
    • Sensors
  • Base material: MnZn and NiZn (ceramics)
  • Powder production and

machining

    • New Jersey
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