But Will It Build? Assessing Student Engineering Designers’ Use of Design for Additive Manufacturing Considerations in Design Outcomes
But Will It Build? Assessing Student Engineering Designers’ Use of Design for Additive Manufacturing Considerations in Design Outcomes
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但它会建成吗？
DOI：
10.1115/1.4046071
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发表时间：
2020
影响因子：
3.3
通讯作者：
Meisel, Nicholas A.
中科院分区：
文献类型：
--
作者：
Prabhu, Rohan;Miller, Scarlett R.;Simpson, Timothy W.;Meisel, Nicholas A.
增材制造（AM）使工程师能够通过增加复杂性来提高其设计的功能和性能，而无需额外成本。然而，增材制造工艺也表现出某些独特的局限性，例如支撑材料的存在。必须考虑到这些限制，以确保设计的制造可行且具有成本效益。考虑到这些独特的工艺特征，对于经过AM培训的员工来说，能够将AM （DfAM）的机会性和限制性设计结合到设计过程中是很重要的。虽然文献中已经讨论了AM/DfAM教育干预，但很少有研究客观地评估DfAM在学生工程设计师设计成果中的整合。此外，有限的研究探讨了DfAM的使用如何影响学生的AM设计对设计任务目标的实现。本研究通过对301名本科生的实验研究，探讨了这一文献缺口。具体来说，参与者被暴露于限制性DfAM或双重DfAM（机会性和限制性），然后被要求参加设计挑战。对参与者的最终设计进行了评估(1)构建时间和构建材料(2)使用各种DfAM概念，以及(3)用于体现这些DfAM概念的特征。结果表明，使用某些DfAM考虑因素，如零件复杂性，零件数量，支撑材料质量和构建板接触面积（对应翘曲趋势），与AM设计的构建材料和构建时间相关-最小化这两者都是设计任务的目标。结果还表明，引入参与者机会性DfAM导致产生具有更高零件复杂性和更低构建板接触面积的设计，但存在更大的不可访问的支撑材料。
Additive manufacturing (AM) enables engineers to improve the functionality and performance of their designs by adding complexity at little to no additional cost. However, AM processes also exhibit certain unique limitations, such as the presence of support material. These limitations must be accounted for to ensure that designs can be manufactured feasibly and cost-effectively. Given these unique process characteristics, it is important for an AM-trained workforce to be able to incorporate both opportunistic and restrictive design for AM (DfAM) considerations into the design process. While AM/DfAM educational interventions have been discussed in the literature, few studies have objectively assessed the integration of DfAM in student engineering designers’ design outcomes. Furthermore, limited research has explored how the use of DfAM affects the students’ AM designs’ achievement of design task objectives. This research explores this gap in literature through an experimental study with 301 undergraduate students. Specifically, participants were exposed to either restrictive DfAM or dual DfAM (both opportunistic and restrictive) and then asked to participate in a design challenge. The participants’ final designs were evaluated for (1) build time and build material (2) the use of the various DfAM concepts, and (3) the features used to manifest these DfAM concepts. The results show that the use of certain DfAM considerations, such as part complexity, number of parts, support material mass, and build plate contact area (corresponding to warping tendency), correlated with the build material and build time of the AM designs—minimizing both of which were objectives of the design task. The results also show that introducing participants to opportunistic DfAM leads to the generation of designs with higher part complexity and lower build plate contact area but a greater presence of inaccessible support material.
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DOI：
10.1115/detc2018-85938
发表时间：
2018
期刊：
Volume 3: 20th International Conference on Advanced Vehicle Technologies; 15th International Conference on Design Education
影响因子：
--
作者：
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通讯作者：
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影响因子：
3.3
作者：
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通讯作者：
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DOI：
--
发表时间：
2019
期刊：
Proceedings of the Design Society
影响因子：
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作者：
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通讯作者：
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通过基于问题的学习进行增材制造的教学设计
影响因子：
11
作者：
O. Diegel;A. Nordin;D. Motte
通讯作者：
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影响因子：
2.7
作者：
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通讯作者：
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