Publication detail

Processing of Aluminum Alloy EN AW 7075 Using Selective Laser Melting: Initial Study

SKALICKÝ, P. KOUTNÝ, D. PANTĚLEJEV, L. PALOUŠEK, D.

Original Title

Processing of Aluminum Alloy EN AW 7075 Using Selective Laser Melting: Initial Study

English Title

Processing of Aluminum Alloy EN AW 7075 Using Selective Laser Melting: Initial Study

Type

conference paper

Language

en

Original Abstract

Selective Laser Melting (SLM) is an additive manufacturing process, that uses a fine metallic powder to produce complex parts. Unfortunately, the range of SLM processed materials is limited by available materials in powder form and for many materials process parameters have not been defined. Currently, about four aluminum alloys has been successfully processed. The aim of this paper was description the influence of the process parameters to the material processability of high strength aluminum alloy EW AW 7075 by SLM. Wide range of process parameters (100-400 W laser power and 300-1400 mm/s scanning speed) were examined to find the optimum processing parameters producing homogeneous material. In this study, maximum relative density of 96.2 % was achieved. However, typical hot cracks, which appears during welding process of aluminum alloy EN AW 7075, was observed in all parts. Cracks were reduced but were not eliminated.

English abstract

Selective Laser Melting (SLM) is an additive manufacturing process, that uses a fine metallic powder to produce complex parts. Unfortunately, the range of SLM processed materials is limited by available materials in powder form and for many materials process parameters have not been defined. Currently, about four aluminum alloys has been successfully processed. The aim of this paper was description the influence of the process parameters to the material processability of high strength aluminum alloy EW AW 7075 by SLM. Wide range of process parameters (100-400 W laser power and 300-1400 mm/s scanning speed) were examined to find the optimum processing parameters producing homogeneous material. In this study, maximum relative density of 96.2 % was achieved. However, typical hot cracks, which appears during welding process of aluminum alloy EN AW 7075, was observed in all parts. Cracks were reduced but were not eliminated.

Keywords

EN AW 7075; Selective Laser Melting (SLM); relative density; hot crack

Released

06.09.2017

Publisher

ZECH UNIVERSITY LIFE SCIENCES PRAGUE, DEPT SYSTEMS ENG, KAMYCKA 129, PRAGUE 6 165 21, CZECH REPUBLIC

Location

PRAGUE, CZECH REPUBLIC

ISBN

978-80-213-2769-6

Book

PROCEEDINGS OF 58TH INTERNATIONAL CONFERENCE OF MACHINE DESIGN DEPARTMENTS (ICMD 2017)

Pages from

330

Pages to

335

Pages count

6

BibTex


@inproceedings{BUT150764,
  author="Petr {Skalický} and Daniel {Koutný} and Libor {Pantělejev} and David {Paloušek}",
  title="Processing of Aluminum Alloy EN AW 7075 Using Selective Laser Melting: Initial Study",
  annote="Selective Laser Melting (SLM) is an additive manufacturing process, that uses a fine metallic powder to produce complex parts. Unfortunately, the range of SLM processed materials is limited by available materials in powder form and for many materials process parameters have not been defined. Currently, about four aluminum alloys has been successfully processed. The aim of this paper was description the influence of the process parameters to the material processability of high strength aluminum alloy EW AW 7075 by SLM. Wide range of process parameters (100-400 W laser power and 300-1400 mm/s scanning speed) were examined to find the optimum processing parameters producing homogeneous material. In this study, maximum relative density of 96.2 % was achieved. However, typical hot cracks, which appears during welding process of aluminum alloy EN AW 7075, was observed in all parts. Cracks were reduced but were not eliminated.",
  address="ZECH UNIVERSITY LIFE SCIENCES PRAGUE, DEPT SYSTEMS ENG, KAMYCKA 129, PRAGUE 6 165 21, CZECH REPUBLIC",
  booktitle="PROCEEDINGS OF 58TH INTERNATIONAL CONFERENCE OF MACHINE DESIGN DEPARTMENTS (ICMD 2017)",
  chapter="150764",
  howpublished="online",
  institution="ZECH UNIVERSITY LIFE SCIENCES PRAGUE, DEPT SYSTEMS ENG, KAMYCKA 129, PRAGUE 6 165 21, CZECH REPUBLIC",
  year="2017",
  month="september",
  pages="330--335",
  publisher="ZECH UNIVERSITY LIFE SCIENCES PRAGUE, DEPT SYSTEMS ENG, KAMYCKA 129, PRAGUE 6 165 21, CZECH REPUBLIC",
  type="conference paper"
}