Lubricity of Volatile Lubricants in Ironing Process

摘要

A series of experiments is carried out by using a strip-ironing type tribometer to investigate the possibility of the volatile lubricants as the lubricant for the bulk metal forming process. The tool material is the die steel alloy D2, and the workpiece material is the mild steel ASTM A366, the stainless steel ASTM 304 and the aluminum alloy A3004. Experiments show that the volatile lubricants have the same lubricity as the generally used mineral oil with low-viscosity by judging from the value of friction coefficient, the surface appearance of ironed workpiece and the surface damage of the die. The volatile lubricants can be applied to the ironing process with 40% reduction in thickness when the workpiece surface texture and the compatibility between the die and workpiece are properly considered.