Method for manufacturing coil

Details Method for manufacturing coil Method for manufacturing coil

1999-03-17

2000-11-07

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

72136, H01F 4102

Patent

active

061418609

ABSTRACT:
A method for manufacturing a coil is composed of the step of rolling a conductor of trapezoidal cross section or a conductor of rectangular cross section in the longitudinal direction thereof. An amount of deformation is gradually increased from a side of the conductor corresponding to the inner side of the coil toward a side of the conductor corresponding to the outer side of the coil. As a result, the conductor of trapezoidal cross section is formed into a coiled conductor of rectangular cross section, or the conductor of rectangular cross section is formed into a coiled conductor of trapezoidal cross section. In this way, rolling and coiling of the conductor are performed simultaneously to produce a coil.

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