An Improved Model for the Continuous Electrical Resistance Annealing of Copper Wire

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A well-defined thermal cycle is essential to predict the annealing response of a cold worked metal. The annealing response of ETP copper wire is generally well behaved for isothermal type anneals and an array of data is readily available. In contrast, the thermal cycles imposed on the wire by the continuous electrical resistance annealing process are highly variable and not easily measured or calculated. Previous work by Kraft, Wright and Chakkingal presents a general approach for evaluating the thermal cycle achieved for given process variables and a means of comparing subsequent mechanical properties.

Description

A well-defined thermal cycle is essential to predict the annealing response of a cold worked metal. The annealing response of ETP copper wire is generally well behaved for isothermal type anneals and an array of data is readily available. In contrast, the thermal cycles imposed on the wire by the continuous electrical resistance annealing process are highly variable and not easily measured or calculated. Previous work by Kraft, Wright and Chakkingal presents a general approach for evaluating the thermal cycle achieved for given process variables and a means of comparing subsequent mechanical properties.

Additional information

Author(s)

Frank F. Kraft and Roger N. Wright, Rensselaer Polytechnic Institute, USA.

Publication/Event/Pages

Paper presented at WAI 61st Annual Convention, Atlanta, GA USA

Year

1991