NL7710368A - Electromagnetic dent remover with localised work coil - has cylinder formed of spiral wound metal strip with insulated convolutions - Google Patents

Electromagnetic dent remover with localised work coil - has cylinder formed of spiral wound metal strip with insulated convolutions

Info

Publication number
NL7710368A
NL7710368A NL7710368A NL7710368A NL7710368A NL 7710368 A NL7710368 A NL 7710368A NL 7710368 A NL7710368 A NL 7710368A NL 7710368 A NL7710368 A NL 7710368A NL 7710368 A NL7710368 A NL 7710368A
Authority
NL
Netherlands
Prior art keywords
coil
electromagnetic
work coil
magnetic field
metal strip
Prior art date
Application number
NL7710368A
Other languages
Dutch (nl)
Original Assignee
Boeing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boeing Co filed Critical Boeing Co
Priority to NL7710368A priority Critical patent/NL7710368A/en
Publication of NL7710368A publication Critical patent/NL7710368A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06—Removing local distortions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H01F7/202—Electromagnets for high magnetic field strength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H01F7/202—Electromagnets for high magnetic field strength
    • H01F7/204—Circuits for energising or de-energising

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnets (AREA)

Abstract

The electromagnetic dent remover includes a dent removal head containing an electromagnetic work coil capable of crating a locally concentrated magnetic field when first energlized by a slow rising current followed by a fast pulsing counter current is disclosed. The electromagnetic work coil comprises a cylinder formed of a spirally wound metal strip whose convolutions are electrically insulated from one another by coatings or layers of electrical insulation. Slots and holes, located in the walls of the coil control the electrical current density, within the coil to produce the desired locally concentrated magnetic field. In another form the ends of the coil are machined such that at least one magnetic field concentration projection projects outwardly from one annular end of the coil. The other end of the coil machined such that it is a mirror image of the projection end. The electromagnetic work coil is encased in a nonmagnetic housing, which may be formed by encapsulation.
NL7710368A 1977-09-21 1977-09-21 Electromagnetic dent remover with localised work coil - has cylinder formed of spiral wound metal strip with insulated convolutions NL7710368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7710368A NL7710368A (en) 1977-09-21 1977-09-21 Electromagnetic dent remover with localised work coil - has cylinder formed of spiral wound metal strip with insulated convolutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7710368A NL7710368A (en) 1977-09-21 1977-09-21 Electromagnetic dent remover with localised work coil - has cylinder formed of spiral wound metal strip with insulated convolutions

Publications (1)

Publication Number Publication Date
NL7710368A true NL7710368A (en) 1979-03-23

Family

ID=19829222

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7710368A NL7710368A (en) 1977-09-21 1977-09-21 Electromagnetic dent remover with localised work coil - has cylinder formed of spiral wound metal strip with insulated convolutions

Country Status (1)

Country Link
NL (1) NL7710368A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996037406A1 (en) * 1995-05-24 1996-11-28 Innovative Dynamics, Inc. Electro-magnetic expulsion de-icing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996037406A1 (en) * 1995-05-24 1996-11-28 Innovative Dynamics, Inc. Electro-magnetic expulsion de-icing system

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BV The patent application has lapsed