Rapid molding method based on electrorheological fluid, and apparatus thereof

Abstract

A rapid molding method based on an electrorheological fluid, and an apparatus thereof are provided. The electrorheological fluid is jetted to a deposition base station with electric field, the electrorheological fluid is rapidly cured through utilizing an electrorheological effect, and the electrorheological fluid deposits on the deposition base station layer by layer to construct a three dimensional entity; a liquid storage container, a driving pump and a nozzle are sequentially communicated through a pipeline to form an electrorheological fluid conveying path; two control lines are set by a computer, a first control line controls the flow of the driving pump, and a second control line controls the three dimension movement of the nozzle through a servo mechanism; and electrodes which comprise an anode and a cathode closely adhere to two sides of a model to be deposited on the deposition base station to provide the electric field required by the curing of the electrorheological fluid. The apparatus which utilizes the electrorheological effect of the electrorheological fluid and utilizes the electric field to replace a temperature control module and a constant temperature environment in traditional fusion jet rapid molding has the advantages of simple structure, substantial reduction of the cost and energy, and realization of micromation; and the method and the apparatus can be applied to fields of prosthesis models, industrial design, mechanical manufacturing, three dimensional scene display, entertainment and art, and the like.

Description

technical field [0001] The present invention relates to a rapid prototyping method and device based on electrorheological fluid, in particular to a method that utilizes the electrorheological effect of electrorheological fluid under an electric field to rapidly solidify by spraying electrorheological fluid onto a deposition substrate with an electric field, forming layer by layer A rapid prototyping method and device for finally forming a three-dimensional entity. Background technique [0002] Rapid prototyping is an advanced manufacturing technology for rapidly manufacturing complex three-dimensional solids. Among the current mainstream rapid prototyping technologies, the fused deposition rapid prototyping method is widely favored because of the cheapest cost (US6253116 B1). A typical fused deposition rapid prototyping technique is shown in the attached figure 1 . The material in the container 3 is heated by the heating element 10 to be in a molten state. Under the acti...

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Problems solved by technology

[0003] However, the above-mentioned fused deposition rapid prototyping process has the following disadvantages: (1) a complex temperature control device is required

figure 1 The middle nozzle temperature control device 11 needs to ensure that the temperature of the molten material in the nozzle can not be too low (to prevent solidification and blockage), nor too high (to prevent cooling too slowly and overflowing after being sprayed onto the abutment); (2) phase change method control process The change of the "liquid / solid" state requires high molding energy consumption, and at the same time, problems such as phase change shrinkage and deformation are prone to occur; therefore, it is necessary to find a more efficient liquid / solid transformation method to obtain jet rapid prototyping with simple structure, low cost and superior performance. method is still a difficult problem for the industry to solve

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