Introduction to the drawing process of titanium wire and titanium alloy wire

The drawing of titanium wire and titanium alloy wire is a metal plastic processing procedure in which wire rods or billets are pulled out from the die holes of the drawing die under the action of drawing force to produce small-section titanium and titanium alloy wire. Metal wires of various metals and alloys with different cross-sectional shapes and sizes can all be produced by drawing. The drawn wire has precise dimensions, a smooth surface, and the drawing equipment and molds used are simple, making it easy to manufacture. When drawing ultra-fine metal wires with a wire diameter less than 0.05mm, it is difficult to pass through the die. In order to improve the stability of the drawing process, reduce the number of breaks and die passes, and enhance the drawing production efficiency, a safety factor K value greater than 2.0 can be adopted.

Drawing above the recrystallization temperature is hot drawing, while drawing above room temperature but below the recrystallization temperature is warm drawing. Cold drawing is the most commonly used drawing method in the production of metal wires and wires. During hot drawing, the metal wire needs to be heated before entering the die hole. It is mainly used for drawing high-melting-point metals such as tungsten and molybdenum. During warm drawing, the metal wire also needs to be heated to a specified temperature range through a heater before entering the die hole for drawing. It is mainly used for drawing zinc wire, difficult-to-deform alloy wire such as high-speed steel wire and bearing steel wire.

According to the number of dies that the metal wire passes through simultaneously during the drawing process, drawing that only passes through one die is single-pass drawing, while drawing that successively passes through several (2 to 25) dies is multi-pass continuous drawing. The wire speed of single-pass drawing is low, resulting in low productivity and labor productivity. It is often used for drawing large wire diameters, low plasticity and irregular wires and yarns. Multi-pass drawing has a high wire speed, a high degree of mechanization and automation, and high productivity and labor productivity. It is the main method for the production of metal wires and wires. It is further divided into non-sliding continuous drawing and sliding continuous drawing.

According to the state of the lubricant used during drawing, wet drawing refers to the use of liquid lubricant, while dry drawing refers to the use of solid lubricant.

According to the cross-sectional shape of the drawn metal wire, there are round wire drawing and irregular-shaped wire drawing.

According to the pulling force acting on the drawn metal wire, there are positive pulling force drawing and negative pulling force drawing.

There are also special drawing techniques, such as roller die drawing, etc.