Scholarlink

<p>Directed energy deposition process needs a substrate, as a base for depositing layers of material, which is discarded after manufacturing. This study showed the feasibility of incorporating a substrate into the final product to reduce material waste and energy. For this purpose, double sided walls-substrate austenitic stainless steel structures were produced by Wire Arc Additive Manufacturing (WAAM). To assess the viability of this approach, mechanical tests such as tensile, hardness, and impact flexure tests were conducted on printed specimens, which were extracted through electrical discharge machining. This was completed with a fractographic analysis of the tested samples. A metallographic analysis was also performed both to assess the internal structure and to evaluate the effects of substrate integration on mechanical properties, thus showing various structural transitions across the bead-substrate interface, including the presence of vermicular and skeletal ferrite within an austenitic matrix. An EDX analysis showed chemical composition variations across the interface. Additionally, energy and cost assessments showed an 8% reduction in material usage, an 8.7% reduction in manufacturing time and an 8.4% reduction in energy consumption and associated <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="40964_2025_1215_Article_IEq1.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="32" /> </InlineMediaObject> <EquationSource Format="TEX">\(\hbox {CO}_2\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mtext>CO</mtext> <mn>2</mn> </msub> </math></EquationSource> </InlineEquation> emissions through substrate integration. The results confirmed the feasibility of integrating substrates into WAAM-fabricated components while maintaining mechanical characteristics within the expected range for stainless steel structures.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Substrate integration in stainless steel components fabricated by plasma arc-directed energy deposition

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年6月26日

查看全文
  • Luis Segovia-Guerrero,
  • Nuria Baladés Ruiz,
  • Carmen Garrido García,
  • Antonio José Gil Mena,
  • Severo Raúl Fernández Vidal,
  • David L. Sales

摘要

Directed energy deposition process needs a substrate, as a base for depositing layers of material, which is discarded after manufacturing. This study showed the feasibility of incorporating a substrate into the final product to reduce material waste and energy. For this purpose, double sided walls-substrate austenitic stainless steel structures were produced by Wire Arc Additive Manufacturing (WAAM). To assess the viability of this approach, mechanical tests such as tensile, hardness, and impact flexure tests were conducted on printed specimens, which were extracted through electrical discharge machining. This was completed with a fractographic analysis of the tested samples. A metallographic analysis was also performed both to assess the internal structure and to evaluate the effects of substrate integration on mechanical properties, thus showing various structural transitions across the bead-substrate interface, including the presence of vermicular and skeletal ferrite within an austenitic matrix. An EDX analysis showed chemical composition variations across the interface. Additionally, energy and cost assessments showed an 8% reduction in material usage, an 8.7% reduction in manufacturing time and an 8.4% reduction in energy consumption and associated \(\hbox {CO}_2\) CO 2 emissions through substrate integration. The results confirmed the feasibility of integrating substrates into WAAM-fabricated components while maintaining mechanical characteristics within the expected range for stainless steel structures.