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Conventional tool-path generation strategies are readily available to generate geometrically feasible trajectories. Such approaches seldom
 

Summary: ABSTRACT
Conventional tool-path generation strategies are readily available
to generate geometrically feasible trajectories. Such approaches seldom
take into consideration physical process concerns or dynamic system
limitations. In the present work, an approach for improving a
geometrically feasible tool-path trajectory based on quantifiable
process metrics is developed. Two specific measures of toolpath quality
are incorporated into the iterative improvement algorithm:
instantaneous path curvature and instantaneous cutter engagement.
These metrics are motivated by a desire to minimize acceleration
requirements and maintain a stable steady-state cutting process during
high-speed machining. The algorithm has been implemented for two-
dimensional end-milling operations, and case studies are presented to
illustrate the approach.
INTRODUCTION
High speed machining (HSM) is a key enabling technology in an
increasing number of industries. In the aerospace industry, structural
components are increasingly being machined as monolithic structures
from a single billet. The result is drastically reduced part counts,
assembly costs, and even maintenance costs. The Boeing F/A 18 E/F

  

Source: Ahuja, Narendra - Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign

 

Collections: Computer Technologies and Information Sciences; Engineering