Abstract: A
method for determination of tool-chip contact length is
theoretically presented in orthogonal metal machining. By using
computer simulation and based on the analyses of the elastro-plastic
deformation with lagrangian finite element method in the
deformation zone,the
accumulated representative length of the low layer, the
tool-chip contact length of
the chip contacting the tool rake are calculated, experimental
studies are also carried out with 0.2% carbon steel. It is shown
that the tool-chip contact lengths obtained from computer
simulation have a good agreement with those of measured values.
Key words:
Tool-chip contact length Computer simulation Finite element
method Elastro-plastic deformation
Representative
length of an element
*
This project is supported by Provincial Natural Science
Foundation of Heilongjiang (No.A9809). Received May 25, 2001; received
in revised form September 3, 2001; accepted January 12, 2002
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