コルソン系銅合金の曲げ加工性(オーガナイズドセッション,材料と組織)

概要

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In recent years, higher mechanical properties are demanded in thin sheets of copper alloys with the miniaturization of electric and electronic parts. Above all, because the materials for connector are usually subjected to heavy bending, good bendability is especially required together with strength, electrical conductivity, etc. In this study, close attention has been paid to the Corson series copper alloys since they possess ideal combination of strength and electrical conductivity. Firstly, the influene of the differences in manufacturing process of the alloys on bendability has been examined oh sheet specimens of 0.3mm thickness. Secondly, close microstructural observations including observation of cracks on the tension surface and tensile test have been made in order to clarify the origin of the difference in bendability. As a result, it was found that bendability is critically inclined to correlate with elongation of tensile properties.
一般社団法人日本機械学会の論文
2004-09-23