Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for producing high strength ultra plastic material

A superplastic and high-strength technology, applied in the field of metal materials, can solve problems such as extreme stress, oxidation, and inability to maintain the initial shape of metal materials, and achieve the effect of uniform internal structure

Inactive Publication Date: 2006-06-28
FURUKAWA COMPANY
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with aluminum, the balance between billet temperature and extrusion speed is difficult, and pure magnesium has the disadvantage that the material cannot be extruded even when the temperature is slightly low, and when the temperature is increased Oxidation occurs
[0020] All methods involve a large shearing process on the produced blank etc., and the shearing process requires extreme stress or cannot maintain the original shape of the metal material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0048] As a metal material, a test piece of 20 mm x 50 mm x 1.25 mm was cut out from an elongated material made of industrial pure aluminum (JIS alloy number: 1100) using a cutting machine with an outer circular cutting edge, and the surface of the test piece was quickly cleaned with ethanol.

[0049] Using an ultrasonic homogenizer as an ultrasonic application device, apply an appropriate amount of silicone grease to the end face of a titanium alloy horn with a diameter of 22mm, and then use a clamp to press the above-mentioned industrial pure aluminum elongated material test piece on the end face, and apply 19kHz and 300W Ultrasonic vibration for 60 seconds. This operation was repeated three times.

[0050] The test piece of the commercially pure aluminum elongated material to which ultrasonic waves have been applied is placed in a vacuum heating furnace, and heat-treated for 1 hour using a vacuum degree of 5 Pa and a heating temperature of 468K, that is, heating temperature...

Embodiment approach 2

[0055] As a metal material, a 20 mm × 50 mm × 1.25 mm test piece was cut out from an industrial pure iron cold-rolled material using a cutting machine with an outer circular cutting edge, and the surface of the test piece was quickly cleaned with ethanol.

[0056] Using an ultrasonic homogenizer as an ultrasonic application device, apply an appropriate amount of silicone grease to the end face of a titanium alloy horn with a diameter of 22mm, and then use a clamp to press the above-mentioned industrial pure iron cold-rolled material test piece on the end face, and apply 19kHz and 300W Ultrasonic vibration for 60 seconds.

[0057] Place the test piece of industrial pure iron cold-rolled material subjected to ultrasonic waves in a vacuum heating furnace, and use a vacuum degree of 5Pa and a heating temperature of 923K to perform heat treatment for 1 hour, that is, heating temperature / melting point=0.51.

[0058] Deformation and dimensional changes due to the above treatments wer...

Embodiment approach 3

[0062] As a metal material, a test piece of 20 mm x 50 mm x 1.25 mm was cut out from an elongated material made of AZ31 using a cutting machine having an outer circular cutting edge, and the surface of the test piece was quickly cleaned with ethanol.

[0063] Use an ultrasonic homogenizer as an ultrasonic application device, apply an appropriate amount of silicone grease to the end face of a titanium alloy horn with a diameter of 22mm, and then use a clamp to press the above-mentioned AZ31 elongated material specimen on the end face, and apply 19kHz and 200W ultrasonic vibration 15 seconds.

[0064] A test piece of an elongated material made of AZ31 to which ultrasonic waves have been applied is placed in a vacuum heating furnace, and heat-treated for 1 hour using a vacuum degree of 5 Pa and a heating temperature of 503K, that is, heating temperature / melting point=0.54.

[0065] In the test piece of the elongated material made of AZ31, almost no deformation and dimensional cha...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

A method for producing a high-strength superplastic material capable of easily obtaining a high-strength superplastic material having a metal structure composed of fine grains is proposed. After ultrasonic waves are applied to the metal material, the metal material is heat-treated at a temperature obtained by multiplying the melting point of the material in terms of absolute temperature by 0.35 to 0.6. The most suitable metal material is a high damping metal material with a specific attenuation rate not less than 10%, especially Mg or Mg alloy.

Description

technical field [0001] The present invention relates to a method for grain refinement of metallic materials and manufacturing metallic materials with high strength and superplastic properties based on the use of ultrasonic waves. Background technique [0002] It is known that the smaller the grain size of the metal material, the higher the strength, toughness and corrosion resistance of the metal material. When the grain size of the metal material does not exceed several microns, although it exhibits extremely high strength at room temperature, a superplastic phenomenon occurs under specific heating conditions and the machinability is significantly improved. [0003] According to the general definition of superplasticity, superplasticity is considered to be a phenomenon in the extensional deformation of polycrystalline materials, the deformation stress shows a high strain dependence and can exhibit not less than several hundred percent without local shrinkage huge elongatio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/06C22F3/00
CPCC22F1/06C22F3/00
Inventor 山本一富
Owner FURUKAWA COMPANY