What is it about?
The results of the structure investigation of the honeycomb structures with the wall thickness of 80-160 mcm and 44 mm height are presented along with the correlation dependencies between samples mass, wall thickness, activation and compression loads.
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Why is it important?
Production of the honeycomb or thin walled structures by the selective laser melting of powder is of a great scientific and practical interest. It’s because that such approach allows producing structures practically of any configuration and thickness, unobtainable or very hard to produce by traditional methods. Using the additive technology, the principal difference from the traditional is that the honeycomb structures can be produced practically of any shape, and the method itself is 100% waste-free, because there is no need in supporting structures.
Perspectives
Compression tests have shown that with the increasing of the wall thickness value the activation and compression loads increasing linearly from 22 to 55 kN and from 23 to 45 kN, respectively. The values of the yield strength for the wall thicknesses from 80 to 170 µm are overcoming the regular ones (mentioned in present standards) and lean towards to the properties of the bulk SLM samples of the same material.
Anton Zhukov
Read the Original
This page is a summary of: Energy Absorbing Properties of the Cellular Structures with Different Wall Thickness, Produced by the Selective Laser Melting, Materials Science Forum, October 2018, Trans Tech Publications,
DOI: 10.4028/www.scientific.net/msf.933.330.
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