Transcript No Slide Title

Overview
• Magnets and magnetic materials are critical to
our nation’s defense
• Weapons systems that use magnetic materials:
Fighter Aircraft
Bombs
Nuclear Subs
Missiles
Tanks
Satcom
Thomas & Skinner is the world leader in highperformance magnets and magnetic materials
used in strategic weapons systems
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Strategic Defense
Applications: Magnetics
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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
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Magnetics Crib Sheet
Hard Magnets vs Soft Magnetic Materials
Hard (Permanent) Magnets Soft Magnetic Materials
• Magnetic field WITHOUT • Magnetic field ONLY
an electric current
with an electric current
• Three general types:
• Multiple types,
including:
– Alnico
– Rare Earth
• SmCo
• NdFeB
– Hard Ferrites
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– Electrical steel
– Soft Ferrites
– Powdered iron
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Thomas & Skinner, Inc.
1901
Company founded by John Esterline,
EE professor at Purdue University
1923
James Thomas & O.H. Skinner
acquired magnetics division
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Thomas & Skinner, Inc.
Today
Employee-owned manufacturer of
magnetic materials headquartered in
Indianapolis, Indiana.
Markets:
Aerospace
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Industrial
Defense
Oil Exploration
Medical
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Thomas & Skinner, Inc.
Goal:
• Provide the highest quality, domesticallyproduced 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 highquality, high-performance magnetics, bar none
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Thomas & Skinner, Inc.
Products:
• Soft ferrites
• Alnico magnets
• Transformer laminations
Employees:
• Indianapolis, IN -- 136
• Fairfield, NJ -- 68
• Osgood, IN -- 17
Exports to:
Canada
Mexico
Japan
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China
Italy
Poland
Malaysia Germany Netherlands
Israel
France
Great Britain
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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
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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
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2/24/0 5
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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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