Publication detail

Development of Process Parameters for SLM Processing of AlSi7Mg Aluminum Alloy

ZVONÍČEK, J. KOUTNÝ, D. PANTĚLEJEV, L. PALOUŠEK, D.

Original Title

Development of Process Parameters for SLM Processing of AlSi7Mg Aluminum Alloy

English Title

Development of Process Parameters for SLM Processing of AlSi7Mg Aluminum Alloy

Type

conference paper

Language

en

Original Abstract

The paper presents three steps of process parameters development of aluminum alloy AlSi7Mg0.6 for selective laser melting (SLM) additive manufacturing pro-cess. Commonly, the components of AlSi7Mg0.6 aluminum alloy are produced by casting. However to speed up the development phase of new products often the SLM prototyping is used and thus the processing parameters for this material are required. To develop process parameters of new alloy a single weld tracks were used followed by thin walls and cuboid samples. The cross sections and continuity of single-track welds were evaluated within the range of 200 – 2000 mm/s laser scanning speed and 175 -400 W laser power. The tracks with good size and quality were chosen for further analysis. To minimize the porosity of material a cuboid samples with different overlap of weld tracks were evaluated. The overlap of approx. 80% was find to produce suitable samples with porosity below 0.5%. Finally, the mechanical properties of samples without heat treatment evaluated by tensile testing reached 380 MPa of ultimate tensile strength (UTS), which is slightly higher than cast alloy in T6 state.

English abstract

The paper presents three steps of process parameters development of aluminum alloy AlSi7Mg0.6 for selective laser melting (SLM) additive manufacturing pro-cess. Commonly, the components of AlSi7Mg0.6 aluminum alloy are produced by casting. However to speed up the development phase of new products often the SLM prototyping is used and thus the processing parameters for this material are required. To develop process parameters of new alloy a single weld tracks were used followed by thin walls and cuboid samples. The cross sections and continuity of single-track welds were evaluated within the range of 200 – 2000 mm/s laser scanning speed and 175 -400 W laser power. The tracks with good size and quality were chosen for further analysis. To minimize the porosity of material a cuboid samples with different overlap of weld tracks were evaluated. The overlap of approx. 80% was find to produce suitable samples with porosity below 0.5%. Finally, the mechanical properties of samples without heat treatment evaluated by tensile testing reached 380 MPa of ultimate tensile strength (UTS), which is slightly higher than cast alloy in T6 state.

Keywords

Selective Laser Melting, Aluminum alloy, Porosity, Mechanical Properties

Released

08.01.2020

Publisher

Springer International Publishing

ISBN

978-3-030-33145-0

Book

Current Methods of Construction Design

Edition

2020

Edition number

1

Pages from

515

Pages to

524

Pages count

10

URL

BibTex


@inproceedings{BUT150842,
  author="Josef {Zvoníček} and Daniel {Koutný} and Libor {Pantělejev} and David {Paloušek}",
  title="Development of Process Parameters for SLM Processing of AlSi7Mg Aluminum Alloy",
  annote="The paper presents three steps of process parameters development of aluminum alloy AlSi7Mg0.6 for selective laser melting (SLM) additive manufacturing pro-cess. Commonly, the components of AlSi7Mg0.6 aluminum alloy are produced by casting. However to speed up the development phase of new products often the SLM prototyping is used and thus the processing parameters for this material are required. To develop process parameters of new alloy a single weld tracks were used followed by thin walls and cuboid samples. The cross sections and continuity of single-track welds were evaluated within the range of 200 – 2000 mm/s laser scanning speed and 175 -400 W laser power. The tracks with good size and quality were chosen for further analysis. To minimize the porosity of material a cuboid samples with different overlap of weld tracks were evaluated. The overlap of approx. 80% was find to produce suitable samples with porosity below 0.5%. Finally, the mechanical properties of samples without heat treatment evaluated by tensile testing reached 380 MPa of ultimate tensile strength (UTS), which is slightly higher than cast alloy in T6 state.",
  address="Springer International Publishing",
  booktitle="Current Methods of Construction Design",
  chapter="150842",
  doi="10.1007/978-3-030-33146-7_59",
  edition="2020",
  howpublished="online",
  institution="Springer International Publishing",
  year="2020",
  month="january",
  pages="515--524",
  publisher="Springer International Publishing",
  type="conference paper"
}