10/23/061 overview magnets and magnetic materials are critical to our nation’s defense weapons...
TRANSCRIPT
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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
Fighter Aircraft Nuclear Subs TanksBombs Missiles Satcom
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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
Strategic DefenseApplications: Magnetics
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Magnetics Crib SheetHard 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
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19011901 Company founded by John Esterline, EE professor at Purdue University
19231923 James Thomas & O.H. Skinner acquired magnetics division
Thomas & Skinner, Inc.
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TodayToday Employee-owned manufacturer ofmagnetic materials headquartered in Indianapolis, Indiana.
Markets:
Thomas & Skinner, Inc.
Aerospace Industrial Defense Oil Exploration Medical
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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, Inc.
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Products:
• Alnico magnets• Transformer laminations
Employees:
• Indianapolis, IN -- 136• Osgood, IN -- 17
Exports to:Canada China Italy Poland
Mexico Malaysia Germany Netherlands
Japan Israel France Great Britain
Thomas & Skinner, Inc.
• Soft ferrites
• Fairfield, NJ -- 68
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• 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
Alnico
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• 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
Transformer Laminations
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• 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
Soft Ferrites
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