Non-mould drawing forming method and apparatus

Abstract

A dieless wire drawing forming device comprises a wire pay-off drum, a wire take-up drum and a platform, wherein the wire pay-off drum is driven by a wire pay-off drum drive motor, the wire take-up drum is driven by a wire take-up drum drive motor, and the shafts of the wire pay-off drum drive motor and the wire take-up drum are respectively supported by the platform through shaft bases. The dieless wire drawing forming device is characterized in that a heater and a cooler are arranged between the wire pay-off drum and the wire take-up drum; the heater is supported on the platform through a bracket; the cooler is supported on the platform through a bracket; the distance S between the heater and the cooler is the width of a deformation region, which is determined by the performance of processed line material; the heater is a high-frequency or a middle-frequency electrical heater; and the cooler is a water cooler or an air cooler. The invention provides a dieless wire drawing processing method with high efficiency, no friction and no lubrication.

Description

technical field [0001] The invention relates to a wire drawing forming method, in particular to a dieless wire drawing forming method and device of an alloy wire. Background technique [0002] High-strength alloy wires are widely used in industry. For example, tungsten alloy wires are widely used in industrial fields such as electric light sources and electronic tubes. The nickel-titanium alloy wire with a diameter of only 24 microns is widely used in nuclear fusion, rotating machines, maglev trains, superconducting energy storage systems, magnetic separation, magnetic medicine, human nuclear magnetic imaging and electron microscopy. But the production cost of alloy wire is still high at present. [0003] At present, the main processing method of alloy wire at home and abroad is the wire drawing process, including hydrostatic extrusion drawing, hydrostatic lubricating wire drawing, hydrodynamic lubricating wire drawing, etc. During the drawing process, the drawing die is s...

AI Technical Summary

Problems solved by technology

During the drawing process, the drawing die is subjected to large friction, pressure and tension; the drawing die generally adopts a carbide die or a diamond die, and the cost is high; due to the existence of friction, the stress and deformation are aggravated during the drawing process. The distribution increases the deformation resistance of the metal, reduces the service life of the mold and the surface quality of the product; if the deformation temperature is increased during drawing, the work hardening process can be weakened, the metal deformation resistance is reduced, and the drawing force is reduced, but due to the increase in temperature It may also reduce the lubricating performance of the lubricant, resulting in increased friction and deformation force, so it is difficult to determine the optimal deformation temperature of the deformed material during drawing

The existing processing technology (wire drawing process) has many shortcomings, such as low dimensional processing accuracy, unsatisfactory wire surface quality, serious wire breakage, high cost, and low efficiency.

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