Journal
JOURNAL OF INTELLIGENT MANUFACTURING
Volume 25, Issue 5, Pages 913-931Publisher
SPRINGER
DOI: 10.1007/s10845-012-0723-9
Keywords
CNC machine tools; Machining process; Activity; Machining state; Therblig; Energy demand modeling
Funding
- National Natural Science Foundation, China [51175464]
- Ningbo Science and Technology Innovation Team
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Energy efficiency has become an important factor that should be included in Intelligent Manufacturing due to the increasingly rising energy price and severe energy shortage issues. Energy demand modeling method is the foundation of improving the energy efficiency of manufacturing; therefore, an energy demand modeling methodology for machining processes is proposed. In this method, machining processes are divided into a series of activities, and Therblig, as one of the basic concepts of Motion study, is introduced to represent the basic energy demand unit. Moreover, a mathematical model of energy demand of machining processes is established by linking the activity and Therblig with machining state. Finally, case studies are performed to illustrate the validity and feasibility of the proposed methodology.
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