EFFECT OF TOOL SPEED ON METAL-FORMING IN MECHANICAL WORKING

The problem of an effect of tool speed on forming of metal with differ ent flow propel-ties has been examined on the basis on a finite elemen t method with allowance for mass loads, It has been demonstrated that at a setting speed of > 10 m/s strain tends to be localized near the c ontact surface which brings about more intensive contact slip, It has been shown theoretically that mechanism of metal forming in high-speed setting cannot be explained only from rheological or tribological vie wpoints.