Compacting of Metal Powders
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منابع مشابه
Application of the Electromagnetic Impulses for Joining of Details and Compacting of Powders
The basic physics and technological aspects of application of the electromagnetic impulses for the obtaining of permanent connections from pipes, for compacting of powders and for shaping of details from metallic and nonmetallic materials are analyzed. The recommendations on choice of parameters of the equipment (pulsed electromagnetic fields generator) and of the tool (magnetic coil) for the a...
متن کاملExperimental Investigation of Metal Powder Compaction without Using Lubricant
The main objective of this work was to design a novel device for compaction of metal powders so that the green parts could be ejected with applying a negligible force and without the need for any lubricant in either an admixed form or applied to the die wall. For this purpose a 40 mm diameter one-piece die was envisaged which would elastically contracted 0.076 mm before compaction and after com...
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In order to comply with current trends concerning sustainability, saving of primary materials and energy savings, this paper addresses Eco-concrete. The major focus thereby is on the increased efficiency of cement use. Applying a new mix design method for concrete, cement contents can be decreased and partially be substituted by other fine powders, preferentially by waste powders which have no ...
متن کاملEffect of Compaction Temperature on the Lubricant Distribution in Powder Metal Parts
Warm compaction is a process leading to parts with high green strength and density. An increased compacting temperature lowers the flow stress of the metallic particles and increases their ductility, resulting in higher powder compressibility and stronger interparticles bonding, either mechanical or metallurgical. Although many studies have been published on warm compaction, very few investigat...
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At the production of superconductors the compaction of powderform raw materials can be made by means of HERF (H~gh Energy Rate Forming) "powder in tube" techniques, too. The compacting processes of the powders in the metal tubes fitted with metal cores were tested by the authors in the cases of explosive and electromagnetic formings. In order to compare the compacted material structures in the ...
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