Tool Force in Milling: Difference between revisions

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Analysis of tool force indicates that feed force (force in the direction of feed) is only 20% of total tooling force. [https://www.mmsonline.com/articles/a-new-milling-101-milling-forces-and-formulas]. This bodes well for belt-driven universal axes, in that a 100 lb tool feed force limit allows for 500lb overall tooling force limit.
Analysis of tool force indicates that feed force (force in the direction of feed) is only 20% of total tooling force. [https://www.mmsonline.com/articles/a-new-milling-101-milling-forces-and-formulas]. This bodes well for belt-driven universal axes, in that a 100 lb tool feed force limit allows for 500lb overall tooling force limit?
 
Not clear. Tangential forces are 70%. If tangential in direction of feed, this does not help.
 
'''But - overall milling forces appear to be on the order of 100-200N, which is well within the capacity of GT2 precision belt drive.'''


=Published Cutting Forces=
=Published Cutting Forces=
#Analysis of published cutting forces shows only 100 Newton scale forces. [https://www.researchgate.net/publication/277726371_Effect_of_reinforcement_on_the_cutting_forces_while_machining_metal_matrix_composites-An_experimental_approach] We have 5x this force allowance with the Universal Axis.
#Analysis of published cutting forces shows only 100 Newton scale forces. [https://www.researchgate.net/publication/277726371_Effect_of_reinforcement_on_the_cutting_forces_while_machining_metal_matrix_composites-An_experimental_approach] We have 5x this force allowance with the Universal Axis.
#Here we have 50-100kg tool forces  [http://article.sapub.org/10.5923.c.jmea.201502.13.html]
#Lathe - Here we have 50-100kg tool forces  [http://article.sapub.org/10.5923.c.jmea.201502.13.html]
#Mill - 10 mm ball mill - up to 200 N forces - [file:///home/marcin/Desktop/jmmp-02-00035.pdf]
 
=Machine Design Strategies=
It may be useful to divide machining drive into 2 regimes: bulk and precision. GT2 is used for the precision part. Heavier belt may be used for bulk forces, such as in lathing.

Latest revision as of 16:07, 14 July 2020

Analysis of tool force indicates that feed force (force in the direction of feed) is only 20% of total tooling force. [1]. This bodes well for belt-driven universal axes, in that a 100 lb tool feed force limit allows for 500lb overall tooling force limit?

Not clear. Tangential forces are 70%. If tangential in direction of feed, this does not help.

But - overall milling forces appear to be on the order of 100-200N, which is well within the capacity of GT2 precision belt drive.

Published Cutting Forces

  1. Analysis of published cutting forces shows only 100 Newton scale forces. [2] We have 5x this force allowance with the Universal Axis.
  2. Lathe - Here we have 50-100kg tool forces [3]
  3. Mill - 10 mm ball mill - up to 200 N forces - [file:///home/marcin/Desktop/jmmp-02-00035.pdf]

Machine Design Strategies

It may be useful to divide machining drive into 2 regimes: bulk and precision. GT2 is used for the precision part. Heavier belt may be used for bulk forces, such as in lathing.