Sustainability of additive manufacturing: measuring the energy consumption of the laser sintering process

被引:130
作者
Baumers, M. [1 ]
Tuck, C. [1 ]
Bourell, D. L. [2 ]
Sreenivasan, R. [2 ]
Hague, R. [1 ]
机构
[1] Univ Loughborough, Wolfson Sch Mech & Mfg Engn, Loughborough LE11 3TU, Leics, England
[2] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA
基金
英国工程与自然科学研究理事会;
关键词
additive manufacturing; rapid manufacturing; laser sintering; electricity; power; energy; energy consumption; power monitoring;
D O I
10.1177/0954405411406044
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The term additive manufacturing (AM) describes a collection of production techniques enabling the layer-by-layer manufacture of components using digital data and raw material as inputs. The AM technology variant most frequently used in the production of end use parts is laser sintering (LS). It has been suggested that efficient usage of the energy inputs is one of the advantages of the technology. This paper presents a comparative assessment of the electricity consumptions of two major polymeric LS platforms: the Sinterstation HiQ + HS from 3D Systems and the EOSINT P 390 from EOS GmbH. The energy inputs to a build consisting of two prosthetic parts were recorded during power-monitoring experiments conducted on both platforms. This paper injects clarity into the ongoing research on the AM energy consumption by applying a novel classification system; it is argued that the AM energy usage can be divided into the job-dependent, time-dependent, geometry-dependent, and Z-height-dependent energy consumption values. The recorded mean real power consumption conforms to the values that have been reported for similar platforms. The measured energy consumption rates are higher than reported elsewhere. It is also shown that the purely time-dependent energy consumption is the main energy drain. Furthermore, the presentation of results in the context of previous literature highlights the caveats attached to summary metrics of the AM input usage.
引用
收藏
页码:2228 / 2239
页数:12
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