A study of regularly spaced shear bands and morphology of serrated chip formation in microcutting process

作者：Wang, H.; To, S.^*; Chan, C. Y.; Cheung, C. F.; Lee, W. B.

来源：Scripta Materialia, 2010, 63(2): 227-230.

DOI：10.1016/j.scriptamat.2010.03.059

• Microcutting process
• Regularly spaced shear bands
• Finite element analysis
• Cold rolling

Serrated chips with regularly spaced shear bands (RSSBs) are commonly observed in the microcutting of non-ferrous materials with diamond tools. This paper investigates the chip morphology with RSSBs produced in the orthogonal microcutting of cold-rolled brass. The reasons why Merchant's model and its modified versions fail whenever RSSBs evolve are critically discussed. This paper proposes a generalized model based on the theory of elastic strain induced shear bands where Merchant's model and its derivatives are construed as special cases.

• 出版日期2010-7