Energy and Cost Efficiency in CNC Machining from a Process Planning Perspective

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9.6 Energy and Cost Efficiency in CNC Machining from a Process Planning Perspective

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3 RESULTS AND DISCUSSION

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Machine operation cost per part Total energy use

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3.2 Capability and level of quality

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3.3 Different machining factors’ impact on specific energy

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3.4 A green machining strategy

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3.5 Further research efforts

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Knowledge about specific cutting force and green manufacturing

Material properties Database Tool Material Development Tool Geometries Development Cooling techniques Machining Dynamics – damping etc.

Process planning Research & development

Capability knowledge

Towards Green Machining

Short-term perspective Long-term perspective

Machine tool development

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4 CONCLUSIONS

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>@ =HLQ $ HW DO Energy efficiency measures for the design and operation of machine tools: An axiomatic approach Proceedings of the 18th CIRP International Conference on Life Cycle Engineering %UDXQVFKZHLJ *HUPDQ\

>@ +HUUPDQQ & HW DO An environmental perspective on Lean Production Proceedings of the 41th CIRP International Conference on Manufacturing Systems, May 26 - 287RN\R-DSDQ

>@ $QGHUEHUJ 6 DQG .DUD 6 Energy and cost efficiency in CNC machining7th Global Conference on Sustainable Manufacturing0DGUDV,QGLD

>@ .DUD 6 DQG /L : Unit process energy consumption models for material removal processes. &,53$QQDOV±0DQXIDFWXULQJWHFKQRORJ\

>@ $QGHUEHUJ6HWDOImpact of energy efficiency on computer numerically controlled machining. -RXUQDO RI (QJLQHHULQJ 0DQXIDFWXUH 3DUW % % S

>@ 'DKPXV - % DQG *XWRZVNL 7 * An Environmental Analysis of Machining 2004 ASME International Mechanical Engineering Congress and RD&D Expo$QDKHLP&DOLIRUQLD86$

>@ :LLEXUJ%RQGH ( Karlebo handbok Karlebo-serien/LEHU6WRFNKROP

>@ 7UHQW ( 0 DQG :ULJKW 3 . Metal Cutting %XWWHUZRUWK+HLQHPDQQ%RVWRQ >@ Aspects of energy efficiency in machine tools

KWWSZZZKHLGHQKDLQFRPILOHDGPLQSGEPHGLDLPJ(Q HUJLHHIIL]LHQ]B:=0BHQSGI>FLWHG@

>@ 'LD] 1 HW DO Energy consumption characterization and reduction strategies for milling machine tool use Proceedings of the 18th CIRP International Conference on Life Cycle Engineering %UDXQVFKZHLJ*HUPDQ\

>@ $VWDNKRY 93 Cutting Tool Sustainability 6XVWDLQDEOH0DQXIDFWXULQJHG'DYLP-3:LOH\,67( /RQGRQ

>@ $QGHUEHUJ6HWDO Process Planning for CNC Machining from a capability perspective.VXEPLWWHG >@ %HQR7HWDOGreen machining - Improving the

bottom line16th CIRP International Conference on Life Cycle Engineering&DLUR(J\SW

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Economic Environmental Robustness

capability Physical capability

Machine: Cost/hour Power Accuracy Dimensions

Speed Auxiliary systems Stiffness

Tooling: Cost/edge Specific energy Accuracy Dimensions

Speed Machining parameter Surface finish

Tool life Embodied energy Chip breaking Operations

Machining MRR Specific energy Reliability Surface finish parameters:

Quality level Chip breaking

Vibrations hysical capability P Dimensions Stiffness Accuracy Dimensions Surface finish

Chip breaking Operations

Specific energy Surface finish

Chip breaking

Vibrations

Dimensions of machining outcome

Results: Cost Time Energy use Tool

(A priori/analytical)

Results: Geometrical fulfillment Quality Robustness

(Posteriori/experience) Operator dependency Di me ns io n o f p r o c e ss p la nni n g de c isi o n s