Titanium alloy ultrafine wires are widely used in the medical and aerospace fields due to their excellent corrosion resistance, biocompatibility, high specific strength, non-magnetic properties, shape memory function, and other characteristics.
At present, there are four main technologies for processing titanium alloy ultrafine wire materials:
1, Fixed die drawing. When using fixed die drawing to produce titanium alloy ultrafine wires, serious wire breakage phenomena, rapid mold wear, and severe surface defects of the wire material may occur, so there are high requirements for the selection of molds and lubricants.
2, Roller die drawing. Roll die drawing refers to the stretching process of a stretching die composed of 2-4 driven rolls driven by an active roll. It is structurally similar to a rolling mill, but in reality, it is a combination of a rolling mill and a wire drawing machine.
3, Ultrasonic vibration drawing. Ultrasonic vibration drawing refers to a machining method that applies ultrasonic vibration in conventional drawing.
4, No mold drawing. Mold free drawing refers to the method of drawing metal wire without using a mold. One end is fixed, and an induction coil is used to locally heat it. Then, the other end of the wire is drawn at a certain speed.
With the continuous development of China's aerospace and medical industries, the requirements for ultrafine titanium alloy wires are also increasing. High precision wire diameter, high surface finish, and fine structure are the research and development directions for titanium alloy ultrafine wires. However, there are still problems with the processing of titanium alloy ultrafine wire materials, such as long production processes, low efficiency, high costs, and low wire quality. Therefore, developing new processes and equipment for preparing ultrafine wire materials to improve efficiency, reduce processing costs, and produce high-quality and affordable titanium alloy ultrafine wire products to meet market demand.
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