0
TECHNICAL PAPERS

Remaining Stock Computation for 3D-Machining in Parametric Regime

[+] Author and Article Information
Pralay Pal

 Tata Technologies, MSD, Telco Premises, Jamshedpur, Jharkhand State 831 010, India

J. Manuf. Sci. Eng 127(4), 801-809 (Jun 23, 2004) (9 pages) doi:10.1115/1.2034510 History: Received November 30, 2003; Revised June 23, 2004

In manufacturing, it is often required to estimate uncut material shape between cutting stages in milling cycles. This may be useful to avoid undesired results like tool breakage, nonoptimized cutting time, and inferior surface finish besides other factors like improper feed-rate, large over-thickness, and inability of handling complex geometries. Current work discusses some strategy of ReSt (remaining stock) machining concept in CNC practices where machined and unmachined geometries are progressively computed and stored through different stages like roughing, semi-finishing, and finishing operations. The modeling of ReSt geometry in these stages is discussed with various possibilities in the parametric regime. The proposed algorithms are discussed with simulation results.

Copyright © 2005 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Successive removal of remaining stock with BN cutter

Grahic Jump Location
Figure 2

Control mechanism bracket and geometry of removable stock

Grahic Jump Location
Figure 3

ReSt, spatial occupancy display, and display by shaded surface

Grahic Jump Location
Figure 4

Intersecting parametric surfaces and offsets and their nomenclature

Grahic Jump Location
Figure 5

Rolling ball method for blend and resultant blend surface

Grahic Jump Location
Figure 6

Rolling ball contact line and surface normal

Grahic Jump Location
Figure 7

Scallop geometry and ReSt in end and side cutting

Grahic Jump Location
Figure 8

Blend intersection model of scallop geometry

Grahic Jump Location
Figure 9

Blend ruled intersection model of scallop geometry

Grahic Jump Location
Figure 10

Sweep (ruled) and blend geometry due to BN cutter

Grahic Jump Location
Figure 11

Lofted solid for scallop visualization

Grahic Jump Location
Figure 12

Spatial occupancy enumeration

Grahic Jump Location
Figure 13

Test component with parallel plane contouring CL path

Grahic Jump Location
Figure 14

Parallel plane and flow-line ReSt clearing CL path

Grahic Jump Location
Figure 15

Parallel plane CL—bracket machining

Grahic Jump Location
Figure 16

ReSt for 8 Ø BN cutter—shaded solid

Grahic Jump Location
Figure 17

Spatial occupancy—hidden wireframe and shaded cube display

Grahic Jump Location
Figure 18

Flow chart for ReSt computation strategy

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In