Authors: Chelluri, B.
Knoth, E.
Title: Powder Forming Using Dynamic Magnetic Compaction
Language (ISO): en
Abstract: Conventional powder forming of metals, ceramics and composites uses room temperature pressing approaches such as static uniaxial pressing, isotropic pressing - cold isostatic pressing (CIP) or elevated temperature hot isostatic pressing (HIP) methods. In this paper, description of a unique dynamic pressing approach for powder materials will be presented where very high pulse pressures (of GPa range) are applied for a short duration (of < 1 millisecond) on powders. Such a dynamic pressing offers the ability to form uniformly high density net shape parts with fine microstructures. The method can be applied to wide range of materials such as metals, ceramics, composites and soft and hard magnetic materials. A broad range of powder particle size distributions, from coarse micron size to fine nano size powders, can be used in the process. The principles of dynamic pressing method along with the summary of results on various powder material systems will be presented. The performance of parts made with dynamic method will be compared with conventional processes.
Subject Headings: dynamic
near net shape
powder
URI: http://hdl.handle.net/2003/27201
http://dx.doi.org/10.17877/DE290R-8739
Issue Date: 2010
Publisher: Institut für Umformtechnik - Technische Universität Dortmund
Is part of: 4th International Conference on High Speed Forming, March 9th-10th 2010 Columbus, Ohio, USA
Appears in Collections:ICHSF 2010

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