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Quick forming device for titanium alloy multi-layered plate and forming method thereof

A multi-layer board and titanium alloy technology, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems of complex forming process, long time-consuming single piece, high equipment requirements, etc., and achieve good welding quality, fast forming speed, The effect of fast diffusion rate

Inactive Publication Date: 2019-04-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The forming process of this method is complicated. Due to the need for separate hot pressing forming and overall diffusion connection, it requires high equipment and takes a long time for a single piece.

Method used

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  • Quick forming device for titanium alloy multi-layered plate and forming method thereof
  • Quick forming device for titanium alloy multi-layered plate and forming method thereof
  • Quick forming device for titanium alloy multi-layered plate and forming method thereof

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Experimental program
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Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing.

[0025] like figure 1 As shown, a rapid prototyping device of a titanium alloy multilayer plate of the present invention includes a thermal insulation sealed box 1, a graphite upper mold 2, a graphite lower mold 3, a temperature measuring hole 4, a graphite electrode 5, a ventilation pipe 6, and a DC pulse power supply 7 and the sample, the sample is two TC4 titanium alloy discs; the graphite electrode 5 is divided into the first electrode and the second electrode, the first electrode is connected to one end of the DC pulse power supply through a wire, and the second electrode is connected through a wire At the other end of the DC pulse power supply; the sample is located between the graphite upper mold 2 and the graphite lower mold 3, and the graphite upper and lower molds are respectively connected to the pulse power supply through two graphite electrodes 5; the two ends o...

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Abstract

The invention designs a quick forming device for a titanium alloy multi-layered plate and a forming method thereof. The device comprises upper and lower graphite molds, a graphite electrode, a pulse direct current power supply, a pressurizing device and a test sample. The method comprises the following steps of generating a lot of resistance heat and discharging heat with a short time, as a directcurrent pulse current directly passes the test sample coated with a solder resist in a special area, wherein the test sample is heated quickly to enter an ultra-plastic state; then introducing gas, wherein the area, coated with the solder resist, of the test sample is swelled quickly; and meanwhile, achieving diffusion bonding by atom exchange in the area which is not coated with the solder resist so as o further form the multi-layered plate quickly. The device can remarkably shorten the forming time of the titanium alloy multi-layered plate and has the advantages of being high in forming speed, low in forming cost and suitable for forming various titanium alloy multi-layered plates.

Description

technical field [0001] The invention designs a rapid prototyping device and a forming method for a titanium alloy multilayer plate, in particular to a pulse current assisted rapid prototyping device and a forming method for a titanium alloy multilayer plate. . Background technique [0002] Titanium alloy is an important metal material that emerged in the middle of the 20th century and began to be used in aircraft structures. Titanium alloy has many excellent characteristics, which are embodied in: 1) High specific density. The tensile strength of titanium alloy is 686-1176MPa, while the density is only It is 3 / 5 of steel; 2) Good corrosion resistance, titanium alloy has better corrosion resistance than most stainless steels in seawater, atmosphere, nitric acid and other oxidizing media; 3) Titanium alloy material is non-magnetic. Titanium alloy multilayer panels are mainly used in large-scale wall panels, blades and wing rudders in the aerospace field, thereby replacing tra...

Claims

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Application Information

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IPC IPC(8): B21D26/021B21D26/059B21D37/16
CPCB21D26/021B21D26/059B21D37/16
Inventor 汤泽军万海峰陶克梅
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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