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Intelligent no-mold drawing formation apparatus and process

A technology of dieless drawing and forming equipment, applied in the field of metal pressure processing, can solve the problems of difficulty in reasonable matching and precise control, poor dimensional uniformity of finished products, unstable product quality, etc., to achieve uniformity of structure and performance, reduce The effect of rolling deformation and stable continuous forming

Active Publication Date: 2007-08-22
UNIV OF SCI & TECH BEIJING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to reasonably match and accurately control process parameters such as deformation temperature, distance between cold and heat sources, feeding speed, and pulling speed in the dieless drawing process, which leads to instability in the drawing process, poor size uniformity of the finished product, and poor product quality. Unstable, even pull off and other problems

Method used

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  • Intelligent no-mold drawing formation apparatus and process

Examples

Experimental program
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Effect test

Embodiment 1

[0030]Embodiment 1: A nickel-titanium shape memory alloy wire rod containing Ni49at% and Ti51at% is selected as a billet, with a diameter of 6 mm, a rolling state, and a smooth surface. Loosen the pressing device 22, 23, 24, 25, and pass the blank to be drawn successively through the feeding rollers 2, 3, 1, 4 of the inventive device, the glass tube 17, the cooling water ring 10 and the pulling rollers 5, 7, 6 ,8. Adjust the pressing device 22, 23, 24, 25 to press the billet, start the computer and run the control program, input the target diameter, click the start drawing button, at this time, the equipment will execute the initial program according to the program design, that is, firstly, according to the target diameter and the actual measurement The billet diameter is designed to match the process parameters reasonably, the protective gas valve is opened, the air in the glass tube 17 is discharged, and then the feeding servo motor 12 and the traction servo motor 26 are sta...

Embodiment 2

[0031] Embodiment 2: The blank is an extruded high-copper-aluminum-copper alloy welding wire with an initial diameter of 6.1 mm and a smooth surface. By adopting the same operation process as that of Embodiment 1, a stable dieless drawing process can be realized, the area reduction rate reaches 22.5%, the finished product has stable dimensions, and the diameter fluctuation range is ±0.1mm.

Embodiment 3

[0032] Example 3: The blank is made of 304 stainless steel wire with an initial diameter of 6 mm and a smooth surface. By adopting the same operation process as that of Embodiment 1, a stable dieless drawing process can be realized, the reduction of area reaches 40%, the finished product has stable dimensions, and the diameter fluctuation range is ±0.1mm.

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Abstract

The present invention is intelligent no-mold drawing formation apparatus and process, and belongs to the field of metal pressing work technology. The apparatus includes an intelligent automatic control system, a feeding and drawing system, a heating and temperature measuring system, a cooling system and a protecting gas supplying system. The technological process includes loosening the automatic hold-down device, passing the drawn material through the feeding rolls, heating, applying the automatic hold-down device to hold down the material, and moving the material forwards under the computer control to obtain predicted area reduction. The present invention has raised stability and high product size precision, and is suitable for high efficiency work of producing wires and rods.

Description

technical field [0001] The invention belongs to the technical field of metal pressure processing, and in particular relates to an intelligent dieless drawing forming equipment and process, which is suitable for processing various metal rods and wires, especially for stainless steel, nickel-titanium shape memory alloy, high-copper aluminum alloy, Drawing processing of difficult-to-process wires and rods such as high-aluminum copper alloys. Background technique [0002] Difficult-to-process wires and rods represented by nickel-titanium shape memory alloys, high-copper aluminum alloys, high-aluminum copper alloys, and stainless steels have been widely used in aviation, aerospace, automobiles, electronics, instrumentation, and medicine due to their unique and excellent properties. And other fields have been widely used, and play an extremely important role in some occasions with special requirements. [0003] When the traditional die-drawing process is used to process difficult...

Claims

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Application Information

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IPC IPC(8): B21C1/00G05B13/02B21D43/08G05D23/19B21C51/00B21C9/00
Inventor 谢建新何勇刘雪峰
Owner UNIV OF SCI & TECH BEIJING
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