Metal surface nanolizing method of supersonic wave high-energy surface machinery processing

A mechanical processing and metal surface technology, which is applied in the field of nano-coated metal parts, can solve the problems of unsatisfactory uniformity of the surface nano-crystalline layer, thin surface finish of the surface nano-layer, difficulty in recycling and reusing hard particles, etc. , to achieve the effect of good comprehensive mechanical properties, good combination and high strength
CN1924030AActive Publication Date: 2007-03-07BAOSHAN IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BAOSHAN IRON & STEEL CO LTD
Publication Date
2007-03-07

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Abstract

the invention discloses a realizing method of nanometer metal non-coating surface through ultrasonic mechanic manufacturing, which is characterized by the following: contacting plunger chip on the ultrasonic energy exchanger with metal sample directly; controlling the relative position, relative moving pattern and speed of ultrasonic exchanger and metal sample; selecting or controlling the geometrical shape, amplitude, ultrasonic frequency and power of plunger chip; inputting the ultrasonic vibrating energy into the metal piece; deforming local metal surface to obtain the product.
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Description

(1) Technical field

[0001] The invention relates to a method for forming a nanocrystalline layer (surface nanometerization) on the surface of a metal piece, in particular to a method for realizing nanometerization of the non-coated surface of a metal piece by ultrasonic high-energy surface machining. (2) Background technology

[0002] Grain refinement improves the toughness of metals while increasing strength. With the emergence of nanotechnology, it has become a reality to refine the grains of metal bulk to the nanometer level (<100nm) in the laboratory. A large number of studies have revealed that nanocrystalline metal materials do have unique properties, including excellent mechanical properties such as high strength, high hardness and good toughness. However, there are two outstanding problems in the application of nanocrystalline metal structure materials:

[0003] (1) When the grain diameter is less than 1 μm (submicron level, the grain diameter is between 1 μm an...

Claims

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