New approaches in microcasting: permanent mold casting and composite casting

被引：0
作者：
G. Baumeister
D. Buqezi-Ahmeti
J. Glaser
H.-J. Ritzhaupt-Kleissl
机构：
[1] Coburg University of Applied Sciences,Department of Mechanical Engineering
[2] Institute for Materials Research III,undefined
[3] Karlsruhe Institute of Technology (KIT),undefined
[4] Institute for Materials Science and Engineering III,undefined
[5] Karlsruhe Institute of Technology (KIT),undefined
来源：
Microsystem Technologies | 2011年 / 17卷
关键词：
Mold; Mold Temperature; Investment Casting; Mold Insert; Cast Part;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
For several years, microcasting was based on investment casting. New approaches are now the permanent mold casting and composite casting of micro parts. Casting was performed with aluminum bronze of the type CuAl10Ni5Fe4. Permanent mold casting was commenced with steel mold inserts in a lost mold. The development of a band heater enabled the heating of permanent molds inside the casting machine. This shall ensure sufficient form filling of micro cavities. For permanent mold casting micro structured steel molds and graphite molds were used. Composite casting was investigated for surrounding a micro part by melt, and for pouring a metal melt into a micro structured part. In both cases different materials were combined. For metal–ceramic composite casting ZrO2, Al2O3 or Si3N4 were used in connection with Al bronze. For metal–metal composite casting Al bronze was cast around steel. First results for both new approaches are presented.
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页码：289 / 300
页数：11
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