Subscribe to the EPMA Mailing List

Development Of High Specific Strength 7075 Al Alloy Applicable To Selective Laser Melting

  • : Yuki Otani1, Yuji Kusaki2, Kazuyuki Itagaki2, Shinya Sasaki1
  • : 1Tokyo University of Science, 2Graduate School of Tokyo University of Science
  • : PDF Download
  • : 2018


Selective laser melting (SLM) is a manufacturing technique which suitable for fabricating complex machinery parts. Take advantage of this feature it is being actively investigated to weight reduction of parts by combining with structural optimization. Accordingly application to SLM of 7075 Al alloy as a light material having high mechanical strength is expected. However it was reported that micro cracks had occurred in molded parts when processed 7075 Al alloy with SLM. To solve this problem we focused on Si addition. Since Al alloy currently often used in the SLM were containing Si at close to eutectic composition such as AlSi10Mg and AlSi12; therefore 7075+5Si alloy (added 5.0 wt% of Si to 7075 Al alloy) seems to have effect of suppressing cracks. In result of this study processing high density and crack-free 7075+5Si alloy objects by SLM was achieved.


Non-EPMA member price shown. If you are an EPMA member please log in for your discount.
If you are logged in as a member but are still seeing this message, please contact us at
If you would like to find out about becoming an EPMA member, click here.
This product is currently only available to purchase via this website to companies with a valid EU VAT Number. If you are an individual or company without an EU VAT number wishing to purchase this, please contact EPMA directly at Alternatively, past Euro PM papers are available via ProQuest and Elsevier.
* This field is required
Go To Top