Basic geometric analysis of 3-D chip forms in metal cutting.: Part 1: determining up-curl and side-curl radii
The works of Nakayama et al. represent the prevailing view on how the geometry of 3-D helical chip relates to the radii of its up-curl and side-curl. The view is re-examined in this paper and it is shown that the corresponding definitions of the radii are ambiguous. Six sets of alternative hypotheti...
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Published in | International journal of machine tools & manufacture Vol. 39; no. 5; pp. 751 - 769 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Oxford
Elsevier Ltd
01.05.1999
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | The works of Nakayama et al. represent the prevailing view on how the geometry of 3-D helical chip relates to the radii of its up-curl and side-curl. The view is re-examined in this paper and it is shown that the corresponding definitions of the radii are ambiguous. Six sets of alternative hypothetical definitions of up-curl and side-curl radii, which are consistent and plausible when examined from the viewpoints of 2-D up-curl and side-curl, are identified and the respective expressions are derived from a geometric analysis of 3-D chip. The hypotheses are tested using six criteria. It is found that the expressions for the radii of up-curl and side-curl proposed by Nakayama et al. do not satisfy one of the criteria whereas a new solution satisfies all the criteria. Part 2 extends the 3-D geometric analysis and discovers a number of new implications. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0890-6955 1879-2170 |
DOI: | 10.1016/S0890-6955(98)00065-0 |