Micro component liquid forming method conducted under composite action of multiple physical fields

A composite effect and multi-physics technology, applied in the direction of casting mold components, casting molding equipment, casting molds, etc., can solve problems such as unstable mechanical properties and incomplete forming of micro-components, and achieve excellent surface quality, complete forming, and improved The effect of mechanical properties
CN109351918AActive Publication Date: 2019-02-19HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2019-02-19

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Abstract

The invention relates to the field of a micro component liquid forming method, in particular to a micro component liquid forming method conducted under the composite action of multiple physical fields, and aims at solving the technical problems that in the existing single force field forming process, micro component forming is incomplete, and mechanical performance is not stable. The method comprises the steps that a micro model is made, and model assembling is conducted; a gypsum casting mold is prepared through assisting of the multiple physical fields; dewaxing and casting mold roasting areconducted; metal fusion is conducted through assisting of an electric field; pouring forming is assisted through the multiple physical fields; and demoulding and cleaning are conducted, and a metal micro component is obtained. According to the method, subsequent machining is not needed, one-time forming can be achieved, the micro component is integrally formed, and the surface quality is excellent. The method is used in the field of metal micro component forming.
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Description

technical field

[0001] The invention relates to the field of micro-component liquid forming methods. Background technique

[0002] With the continuous deepening of the application of various commercial micro-products in military, civil and aerospace fields, the processing methods of micro-components are also constantly enriched. From the surface etching technology and LIGA technology initially applied to silicon-based materials, to the micro-EDM technology, ultra-precision machining technology and micro-forming technology applicable to metal materials. Moreover, as the proportion of metal materials in micro-products continues to increase, the micro-forming technology that can be used for the processing and shaping of metal micro-components has also attracted more attention. Among the above-mentioned technologies, the micro-hydroforming method, as a near-net forming technology that can efficiently and rapidly process highly complex metal micro-components, has always been the...

Claims

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