Ultrasonic-assisted metal micro-spraying molten drop deposition forming device and method
A deposition molding and ultrasonic-assisted technology, which is applied in the direction of additive manufacturing and additive processing, can solve the problems of warping and deformation of formed parts, reduce the overall mechanical properties of parts, and coarsen grains of parts, so as to achieve the improvement of grain refinement , Improve the nucleation rate and refine the grain
Pending Publication Date: 2021-02-05
SHANDONG UNIV OF SCI & TECH
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At the same time, the heat accumulation in the forming process not only causes a certain temperature gradient in the first forming part, but also creates residual stress inside,
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[0022] It should be noted that in the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate orientations or positional relationships based on the orientations shown in the drawings Or positional relationship is just a relative term determined for the convenience of describing the structural relationship of the various components of the present invention, and does not specifically refer to any component in the present invention, and should not be construed as a limitation of the present invention.
[0023] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in further detail:
[0024] Such as figure 1 As shown, an ultrasonic-assisted metal micro-spraying droplet deposition molding device includes a glove box 9, and a three-dimensional workbench 27, a substrate 26, a detection device, an ultrasonic auxiliary device, a hot-melt device, a press An electric actuator 11 and a gap trim...
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The invention discloses an ultrasonic-assisted metal micro-spraying molten drop deposition forming device and method. The device comprises a glove box, wherein a three-dimensional workbench, a base plate, a detection device, an ultrasonic-assisted device, a hot melting device, a piezoelectric actuator and a gap fine adjustment instrument are installed in the glove box; and an inert gas tank, a vacuum pump, a pressure controller, a central processing unit, a temperature controller, a motion control card and an ultrasonic generator are arranged outside the glove box. According to the ultrasonic-assisted metal micro-spraying molten drop deposition forming device and method provided by the invention, in the metal micro-spraying molten drop deposition forming process, non-contact ultrasonic vibration is applied to a cladding layer on the surface of a deposition layer, and ultrasonic cavitation, sound flow, machinery and heat effect are utilized to crush crystal grains in molten drop metal so as to inhibit crystal grain growth, effectively improve the surface quality of a formed part and reduce generation of air holes. Meanwhile, the temperature of a heating element is controlled according to a temperature value measured by an infrared thermal imager, so that flowing of the molten metal drops is avoided, and and the molten metal drops can be rapidly and accurately solidified and formed.
Description
technical field [0001] The invention relates to the field of metal three-dimensional additive manufacturing, in particular to an ultrasonic-assisted metal micro-spray droplet deposition forming device and method. Background technique [0002] Metal micro-spray droplet deposition forming technology is a kind of metal additive manufacturing technology. It is based on the idea of discrete-accumulation forming. It discretizes three-dimensional parts in two dimensions, forms sheet data, and accumulates formed parts layer by layer. The bulk metal is melted through the crucible, and the computer is used to precisely control the on-demand injection of metal micro-droplets and the movement of the three-dimensional deposition platform, so that the molten droplets are deposited point by point and layer by layer on the substrate, thereby realizing the moldless direct forming of three-dimensional metal parts. The technology has a simple forming process and is suitable for direct rapid ...
Claims
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Login to View More IPC IPC(8): B22F12/00B22F10/22C21D10/00C22F3/00B22F10/368B22F10/85B33Y10/00B33Y30/00B33Y40/00B33Y50/02
CPCB22F3/003B22F3/115C21D10/00C22F3/00B33Y10/00B33Y30/00B33Y40/00B33Y50/02
Inventor 苏春建王恩民郭素敏王瑞冯正阳张明宇纪超吴晓辰
Owner SHANDONG UNIV OF SCI & TECH