In this article we will discuss about the technology, lubrication and machinery of wire drawing. Technology of Wire Drawing: Wire Drawing Die: Modern wire drawing process is similar to the one used centuries ago, however, significant developments have taken place in the machines and the dies. Modern dies are made out of tungsten carbide, ceramic, diamond or hard alloy. A [...]
For design of wire drawing machinery it is necessary to know the force and power required to draw the wire. The process is illustrated in Fig. 9.8. The total pull is due to different deforming processes taking place in the die. These are as follows: (i) Before entry into die, the surface particles of wire are moving parallel to wire [...]
In this analysis, it is assumed that plane sections remain plane during deformation. Die has cross-section similar to that of the wire. The size of wire reduces proportionately from entry to the exit. Let us consider a small section of slab of width dx at a distance x from the exit of conical portion of die. The different stresses acting [...]