Scholarlink

<p>The extensive use of acrylonitrile styrene acrylate (ASA) processed through fused deposition modeling (FDM) is transforming the design and manufacturing sector, fundamentally altering established paradigms. However, the FDM printing of ASA polymer encounters several challenges due to its high-temperature requirements, weakened interlayer bonds and crystallization concerns may generate internal stress during the printing process, resulting in warping, weakened parts, and layer separation. Addressing these critical limitations is essential to unlock the full potential of ASA in demanding manufacturing sectors, where structural integrity and dimensional accuracy are paramount. The present research has analyzed the effect of significant input parameters (layer height, infill density and infill style) on the surface roughness, wear rate, and impact strength of ASA printed specimens. Forty specimens were fabricated using a Stratasys F170 FDM printer according to ASTM G99 and ASTM type IV D256 standards, following a design of experiments methodology. The surface roughness and wear rate of the fabricated specimens were investigated using the surface roughness tester and pin-on-disk machine, respectively, whereas impact strength was measured using the Izod impact tester. Response surface methodology has been utilized to describe the relationship between input variables and output responses. The study concluded that a minimum wear rate of 1.569&#xa0;mm<sup>3</sup>/m, least surface roughness of 0.955 microns and maximum impact strength of 57.50&#xa0;J/m were achieved with a layer thickness of 0.243&#xa0;mm, infill density of 43.053 percent, and hexagram infill density, and the same has been confirmed experimentally. Findings of proposed research provide crucial insights for optimizing ASA FDM printing processes to produce stronger, more dimensionally accurate parts appropriate for demanding applications in the automotive, aerospace, and consumer goods industries.</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

Addressing Critical Challenges Encountered during Extrusion-Based ASA Additive Manufacturing: A Process Optimization Approach

  • 期刊论文

  • 发表日期：

    2025年9月8日

查看全文
  • Deepak Bhardwaj,
  • Imran Siraj,
  • Aryender Singh,
  • Dinesh Deshwal,
  • Ashish Kaushik,
  • Girish Bhiogade,
  • Sumit Gahletia

摘要

The extensive use of acrylonitrile styrene acrylate (ASA) processed through fused deposition modeling (FDM) is transforming the design and manufacturing sector, fundamentally altering established paradigms. However, the FDM printing of ASA polymer encounters several challenges due to its high-temperature requirements, weakened interlayer bonds and crystallization concerns may generate internal stress during the printing process, resulting in warping, weakened parts, and layer separation. Addressing these critical limitations is essential to unlock the full potential of ASA in demanding manufacturing sectors, where structural integrity and dimensional accuracy are paramount. The present research has analyzed the effect of significant input parameters (layer height, infill density and infill style) on the surface roughness, wear rate, and impact strength of ASA printed specimens. Forty specimens were fabricated using a Stratasys F170 FDM printer according to ASTM G99 and ASTM type IV D256 standards, following a design of experiments methodology. The surface roughness and wear rate of the fabricated specimens were investigated using the surface roughness tester and pin-on-disk machine, respectively, whereas impact strength was measured using the Izod impact tester. Response surface methodology has been utilized to describe the relationship between input variables and output responses. The study concluded that a minimum wear rate of 1.569 mm3/m, least surface roughness of 0.955 microns and maximum impact strength of 57.50 J/m were achieved with a layer thickness of 0.243 mm, infill density of 43.053 percent, and hexagram infill density, and the same has been confirmed experimentally. Findings of proposed research provide crucial insights for optimizing ASA FDM printing processes to produce stronger, more dimensionally accurate parts appropriate for demanding applications in the automotive, aerospace, and consumer goods industries.