Vertical continuous compound casting of copper aluminum bilayer rods

被引：11

作者：

Gress, Thomas ^{[1
]}

Nardi, Vanessa Glueck ^{[2
]}

Schmid, Simon ^{[1
]}

Hoyer, Julika ^{[1
]}

Rizaiev, Yevgen ^{[1
]}

Boll, Torben ^{[3
,4
]}

Seils, Sascha ^{[3
,4
]}

Tonn, Babette ^{[2
]}

Volk, Wolfram ^{[1
]}

机构：

[1] Tech Univ Munich TUM, Chair Met Forming & Casting, Walther Meissner Str 4, D-85748 Garching, Germany

[2] Tech Univ Clausthal, Inst Met, Robert Koch Str 42, D-38678 Clausthal Zellerfeld, Germany

[3] Karlsruhe Inst Technol KIT, Inst Appl Mat IAM, Engelbert Arnold Str 4, D-76131 Karlsruhe, Germany

[4] Karlsruhe Inst Technol KIT, Karlsruhe Nano Micro Facil KNMF, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2021年 / 288卷

关键词：

Continuous compound casting; Cohesion; Bimetal; Casting simulation; Interface development; Copper aluminum composite; BIMETALLIC CASTINGS; COLD EXTRUSION; CLAD COMPOSITE; INTERFACE; MICROSTRUCTURE; TOMOGRAPHY; HEAT;

D O I：

10.1016/j.jmatprotec.2020.116854

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A vertical continuous compound casting technology for the production of rotationally symmetric bilayer rods consisting of brass CuZn37 and aluminum AA7075 was developed. The interface of the metallurgically bonded semi-finished products was composed of four intermetallic layers and an anomalous eutectic area of Al2Cu (theta-AlCu), Al solid solution (alpha-Al), and other intermetallic precipitates. The intermetallic layers were CuZn (beta-CuZn), a suggested two-phase region of Al3Cu5Zn2 (tau-AlCuZn) and Cu5Zn8 (gamma-CuZn), Al4Cu3Zn (tau'-AlCuZn), and AlCu (eta(2)-AlCu). The correlation between the process parameters casting speed, cladding temperature, and tool tempering and the interface formation was studied. The experimental investigations were accompanied by a numerical FEM analysis. The casting speed and the cladding temperature were found to be key factors, that influence the formation of a cohesion between the joining partners.

引用

页数：16

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