Preparation method for wear-resistant resistance-reducing surface with coupling bionic hexagonal texture

Abstract

The invention discloses a preparation method for a wear-resistant resistance-reducing surface with a coupling bionic hexagonal texture. The preparation method comprises the following steps of: step 1, selecting steel as a raw material to be machined, and carrying out surface pre-treatment on the steel to be machined by virtue of a grinding machine; step 2, programming the tool travelling path of a numerical control milling machine for machining, and then machining the pre-treated steel; step 3, coating an absorption layer on the surface of the machined steel, setting laser device machining parameters, and carrying out laser heat-treatment machining on the surface of the steel; step 4, polishing the steel after the laser heat-treatment to obtain the surface with the coupling bionic smooth hexagonal texture. The preparation method disclosed by the invention further has the multifunctional characteristics of storing chips and reducing wear, storing oil, storing gas, lubricating and the like while improving the mechanical performances of the metal surface such as realizing wear resistance, resistance reduction and the like by virtue of the advantages of combining machining with laser machining, as well as is further capable of reducing machining cost and increasing machining efficiency in a condition of ensuring machining accuracy, thus realizing batch production.

Description

technical field [0001] The invention belongs to the technical field of bionic metal surface engineering, and in particular relates to a technical scheme related to the preparation of coupled bionic wear-resistant and drag-reducing surfaces. Background technique [0002] About 30% to 50% of the world's energy is consumed in various forms of friction. The wear and tear caused by friction is the main reason for the failure of mechanical equipment, and about 80% of the failure of parts is caused by various forms of wear. . Therefore, wear and drag reduction has become an important measure to save energy and raw materials and shorten maintenance time. A wide variety of organisms have undergone a long-term survival and evolution process, enabling them to adapt to environmental changes according to environmental changes, and thus survive and develop. With the needs of production and the development of science and technology, people have realized that the biological system is one ...

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Problems solved by technology

[0006] However, there are still many problems in these existing technologies, including that laser processing is limited by parameters such as the power and pulse of the machine itself, resulting in the fact that the spacing, depth and other dimensions of the non-smooth surface topography unit body cannot be processed according to the designer's requirements; and according to the design According to the size parameter requirements of the pattern, relevant laser processing parameters such as output power, wavelength, and spot diameter need to be adjusted, that is, patterns of different shapes or sizes will produce different laser processing parameters, thereby increasing the workload of the operator; at the same time, the overall laser processing The cost is high, and some methods use specific molds or carry out cladding modification treatment to increase the processing procedures, so it is not suitable for low-cost mass production

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