Restricted path nanosecond laser scanning impact forming method for discrete curved surface microstructure array surface
A microstructure array, laser scanning technology, applied in laser welding equipment, manufacturing tools, welding equipment and other directions, can solve the problems of difficult machining, cannot be used to generate microstructures, and difficult to realize the shape of microstructure curved surfaces, so as to reduce the forming process. Difficulty, achieve macro-scale surface preparation, and achieve the effect of surface quality evolution
Pending Publication Date: 2022-04-01
JIANGSU UNIV
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Problems solved by technology
In Chinese patent 202010303938.6, since the discrete curved surface microstructure is in the micrometer scale in both length and width dimensions, it is difficult to realize it by mechanical processing; in Chinese patent 201910424010.0, although the chemical etching method can control the microstructure in the length and width directions scale, but difficult to achieve curved shapes on top of microstructures
Nanosecond laser shock forming has advantages in the preparation of large-area microstructures, but it can only be used to replicate existing complete structures and cannot be used to create new microstructures
Method used
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[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0038] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", The orientation or positional relationship indicated by "radial", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or elem...
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Abstract
The invention discloses a limited path nanosecond laser scanning impact forming method for a discrete curved surface microstructure array surface, and relates to the technical field of functional surface preparation, and the method comprises the following steps: preparing a curved surface bottom through micro groove in a template, and clamping the template on a mold; placing the mold on a laser processing system platform; drawing a laser scanning path and setting laser scanning parameters in software of a laser processing system according to a forming structure requirement; and laser is started, so that laser scanning impact forming of the through micro-groove in the bottom of the curved surface is achieved, and the discrete curved surface microstructure surface is obtained. A groove array surface with a controllable bottom surface shape is used as a template, and path nanosecond laser scanning impact forming is limited, so that a discrete curved surface microstructure array surface is obtained.
Description
technical field [0001] The invention relates to the technical field of preparation of functional surfaces, in particular to a nanosecond laser scanning impact forming method of a discrete curved surface microstructure array surface with a limited path, and the method is suitable for the preparation of the discrete curved surface microstructure array surface. Background technique [0002] Discrete curved surface microstructure array surface refers to a surface with a micron-scale protrusion array and a curved top of the protrusion structure. Such a surface can be used as a textured friction pair, and can also be used to regulate the interaction between the surface and the liquid working medium (such as liquid Orientation motion), has potential application value, and has received extensive attention in recent years. [0003] The surface of the discrete curved microstructure array usually needs to ensure the surface shape and surface quality of the bottom of the microstructure....
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IPC IPC(8): B23K26/082B23K26/70B23K26/352
Inventor 李健刘新如洪伟陈薇玫谭源昊金卫凤
Owner JIANGSU UNIV