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Showing 1 results for Machining Chip

R. Abdi Behnagh, H. Abdollahi, R. Rajabi,
Volume 20, Issue 9 (9-2020)
Abstract

In the current study, shear compaction processing was used for the recycling of aluminum machining chips and direct converting of them to bulk parts. In this processing, machining chips are first loaded in a cylindrical chamber, then a rotating tool with a defined rotational speed and aligned axis with the chamber is placed on the chips, in the following, the temperature inside the chamber increases due to the friction. Then, the process continues until all chips are transformed into a bulk part. After producing the samples, properties such as density, porosity, microstructure, hardness, and wear of the recycled parts were examined. The results showed that there is a possibility of transforming aluminum chips into a completely bulk part without porosity, with a density of about 2.67g/cm3 and hardness of more than half of the base metal via shear compaction process. The amount of heat during the process leads to the consolidation of the chips and nucleation of new grains with dynamic recrystallization. Finally, a review of the total results and properties of the recycled samples showed that they could be used as a industrial part directly or after a secondary process.


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