Hideaki Kudo

TL;DR: For restricted and unrestricted cutting tool faces, certain new slip-line fields have been obtained where there is completely or nearly uniform frictional resistance and which produce a straight chip and are valid beyond the limitations of previous solutions.

TL;DR: In this paper, an upper bound for the load required to perform certain kinds of plastic working operations and to account approximately for the modes of flow encountered, a description of a new upper bound approach is first presented.

TL;DR: In this paper, the temperature at the tool flank, which has an effect on the tool life and on the machined surface integrity, is measured using a two-color pyrometer with a fused fiber coupler.

TL;DR: In this paper, an alternative slip-line field which allows exit splitting at the mid-plane is proposed, which is shown to be statically inadmissible due to overstressing at the die exit when the midplane hydrostatic pressure approximately equals -κ.