The impact of build orientation policies on the completion time in two-dimensional irregular packing for additive manufacturing

The impact of build orientation policies on the completion time in two-dimensional irregular packing for additive manufacturing
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构建方向策略对增材制造二维不规则包装完成时间的影响

DOI:
10.1080/00207543.2019.1683253
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发表时间:
2019
影响因子:
9.2
通讯作者:
Behdad, Sara
Behdad, Sara
中科院分区:
工程技术2区
文献类型:
--
作者:
Oh, Yosep;Zhou, Chi;Behdad, Sara

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研究了大规模定制商业模式下,制造导向策略对加法制造(AM)生产时间的影响。考虑了两种主要的定向策略:(1)侧重于降低零件高度的铺设策略(LP);以及(2)旨在最小化零件投影基面以减少工作数量的常备策略(SP)。虽然由于零件高度较低,LP可以最大限度地缩短每个作业的制造时间,但随着零件数量的增加,它可能会增加总的完工时间。另一方面,由于部件的高度较高,SP每个作业需要更长的构建时间,这可能会导致作业数量较少。基于立体光刻技术(SLA)已经进行了几次数值实验。结果表明,当零件数量为40个左右时,在零件形状倾向可能影响策略偏好程度的情况下,SP可能比LP更有利于最小化完工时间。当考虑40个形状较长且扁平的零件时,SP比默认策略(零件的初始方向)减少15.7%的完成时间,而LP仅减少6.6%。
The study investigates the impact of build orientation policies on the production time in additive manufacturing (AM) for mass customisation business models. Two main orientation policies are considered: (1)Laying Policy (LP)that focuses on reducing the height of parts; and (2)Standing Policy (SP)that aims to minimise the projection base plane of parts to reduce the number of jobs. While LP minimises the build time per job since parts have low height, it could increase the total completion time as the number of parts increases. On the other hand, SP takes longer build time per job due to the high height of parts, where it could lead to a fewer number of jobs. Several numerical experiments have been conducted based onStereolithography (SLA). The results show that, when the number of parts is experimentally about 40, SP could be more preferred than LP for minimising the completion time where the shape tendency of parts is likely to affect the extent of preference for the policies. When 40 parts with long and flat shape are considered, SP reduces the completion time by 15.7% over the default policy, the initial orientation of a part, while LP reduces by only 6.6%.
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