TY - JOUR
T1 - Environmental benefits of remanufacturing
T2 - A case study of cylinder heads remanufactured through laser cladding
AU - Liu, Zhichao
AU - Jiang, Qiuhong
AU - Li, Tao
AU - Dong, Shiyun
AU - Yan, Shixing
AU - Zhang, Hongchao
AU - Xu, Binshi
N1 - Funding Information:
The authors gratefully acknowledge the support of SINOTRUK, Jinan Fuqiang power Co., LTD. and the National Basic Research Program of China (Grant No. 2011CB013403 and 2011CB013406 ).
Publisher Copyright:
© 2016 Elsevier Ltd
PY - 2016/10/1
Y1 - 2016/10/1
N2 - Laser cladding is one of the principal means of equipment remanufacturing and the environmental profiles of this technology has become a research focus. This paper examines the environmental impacts of cast iron cylinder head block remanufacturing through laser cladding using life cycle assessment (LCA), and compares it with the new cylinder head block manufacturing. Resource and energy consumptions of each manufacturing and remanufacturing processes are collected along the production line and then the results of six selected environmental impact categories are calculated. Consistency and sensitivity analysis is also conducted after life cycle impact assessment. The results reveal that cylinder head remanufacturing by laser cladding will achieve large environmental benefits, which can cut environment impact over the entire life cycle by 63.8% on average. This paper also discusses the trend of changes in environmental impacts using scenario analysis over different remanufacturing levels. By taking characterized global warming potential (GWP) as the assessment index, the result shows that remanufacturing will no longer be the preferred option if it needs to repair more than 16 cracks by laser cladding for the cylinder head.
AB - Laser cladding is one of the principal means of equipment remanufacturing and the environmental profiles of this technology has become a research focus. This paper examines the environmental impacts of cast iron cylinder head block remanufacturing through laser cladding using life cycle assessment (LCA), and compares it with the new cylinder head block manufacturing. Resource and energy consumptions of each manufacturing and remanufacturing processes are collected along the production line and then the results of six selected environmental impact categories are calculated. Consistency and sensitivity analysis is also conducted after life cycle impact assessment. The results reveal that cylinder head remanufacturing by laser cladding will achieve large environmental benefits, which can cut environment impact over the entire life cycle by 63.8% on average. This paper also discusses the trend of changes in environmental impacts using scenario analysis over different remanufacturing levels. By taking characterized global warming potential (GWP) as the assessment index, the result shows that remanufacturing will no longer be the preferred option if it needs to repair more than 16 cracks by laser cladding for the cylinder head.
KW - Cylinder head
KW - Environmental impact
KW - Laser cladding
KW - Life cycle assessment
KW - Remanufacturing
UR - http://www.scopus.com/inward/record.url?scp=84988857071&partnerID=8YFLogxK
U2 - 10.1016/j.jclepro.2016.06.049
DO - 10.1016/j.jclepro.2016.06.049
M3 - Article
AN - SCOPUS:84988857071
SN - 0959-6526
VL - 133
SP - 1027
EP - 1033
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
ER -