A slip-line solution to metal machining using a cutting tool with a step-type chip-breaker

An analysis of strain in chip breaking using slip-line field theory with adhesion friction at chip/tool interface

“…The programme incorporated flatness and mass flux checks as reported in references [19,20]. It also contained checks to ensure that the rigid vertices at A are not overstressed by applying Hill's criteria [25].…”

“…These authors correlated the specific cutting energy consumed during machining with different types of chip forms. Theoretical studies to evaluate performance of chip breakers using slip-line field theory has also been reported by Shi and Ramalingam [16], Fang and Jawahir [17] for groove type chip breakers, by Dewhurst [18] for ramp type chip breakers and by Maithy and Das [19,20] for step-type chip breakers. However, no attempt has been made to date to correlate the strain and strain energy calculated from the slip-line field analysis with effectiveness of chip breaking.…”

A New Slip-Line Field Modeling of Orthogonal Machining with a Rounded-Edge Worn Cutting Tool

“…In the previous studies, several slip-line field models developed for the perfectly sharp cutting tools to simplify the modeling of the metal cutting (Das et al, 2005;Das and Dundur, 2006;Fang et al, 2001;Fang, 2002aFang, , 2002bFang and Dewhurst, 2005;Kudo, 1965;Lee and Shaffer, 1951;Maity and Das, 1998, 1999, 2001a, 2001bMerchant, 1944;Oxley, 1989;Ye et al, 2012). But it is known that the cutting edge of a tool cannot be produced perfectly sharp, and the nature radius of cutting edge was estimated as of 0.007 mm (Albrecht, 1960) and a dead metal zone was formed in fornt of the rounded-edge cutting tool (Abdelmoneim, 1980;Abdelmoneim and Scrutton, 1974;Karpat and Ozel, 2008;Waldorf et al, 1998).…”

Experimental investigation of a slip-line field model for a worn cutting tool

“…Maity and Das carried out theoretical slip-line field solutions of orthogonal metal machining with a perfectly sharp cutting tool. [1][2][3][4] Fang et al presented a universal slip-line model for two-dimensional machining with restricted perfectly sharp cutting tools and the developed model provided both the chip up-curling and the chip back-flow effects. 5 Fang proposed a slip-line model accounting for the tool-chip contact on the secondary rake face for the perfectly sharp cutting tool.…”