An integrated method for connecting and forming semi-solid materials

A semi-solid, composite material technology, applied in chemical instruments and methods, welding equipment, lamination, etc., can solve problems such as difficult to obtain comprehensive performance of joints

Active Publication Date: 2014-10-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The present invention aims to solve the problem that it is difficult to obtain good joint comprehensive performance by the existing mechanical connection, adhesive bonding and conventional fusion welding methods, and provides an integrated method for connecting and forming semi-solid materials

Method used

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  • An integrated method for connecting and forming semi-solid materials
  • An integrated method for connecting and forming semi-solid materials
  • An integrated method for connecting and forming semi-solid materials

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Experimental program
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specific Embodiment approach 1

[0036] Specific embodiment 1: The semi-solid material connection and forming integration method of this embodiment is carried out according to the following steps:

[0037] 1. Prepare two or more pre-connected materials into semi-solid blanks or semi-solid slurries respectively, wherein the types of pre-connected materials prepared into semi-solid blanks are greater than or equal to the pre-connected materials prepared into semi-solid slurries. type;

[0038] 2. If all pre-connected materials are prepared into semi-solid blanks in step 1, then the semi-solid blanks of pre-connected materials prepared in step 1 are heated to a predetermined temperature range, and then the heated semi-solid blanks are placed in the mold cavity Or place it under the roll for thixoforming. When the die forging or rolling is completed, the connected and formed parts are taken out to complete the semi-solid connection and forming integration process of the required parts;

[0039] If both the semi-...

specific Embodiment approach 2

[0043] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the pre-connection material in step 1 is a metal material or a metal matrix composite material. Others are the same as the first embodiment.

specific Embodiment approach 3

[0044] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the metal material is a superalloy. Others are the same as in the second embodiment.

[0045] The metal materials described in this embodiment are not limited to superalloys, as long as metal materials with semi-solid microstructure characteristics can implement the present invention.

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Abstract

A method for connecting semi-solid materials into a whole relates to the technical field of material connection and formation and solves the problem that an existing mechanical connection, glue joint and conventional fusion welding method is difficult to obtain good joint comprehensive performance. The method for connecting the semi-solid materials into the whole includes that 1 two kinds or more than two kinds of pre-connection materials are prepared into semi-solid blank or semi-solid slurry respectively; and 2 the semi-solid blank or the semi-solid slurry prepared in step one is put in a die cavity or below a roller to perform one-time composite formation under pressure. A material interface prepared by the method is good in combination, high in performance, small in product residual stress and high in production efficiency. Semi-solid formation is low in temperature, requirements on die materials are not high, and production environment is good. The semi-solid formation is high in mechanical property, requirements for the mechanical property can be satisfied, and the method for connecting the semi-solid materials into the whole is used in the field of material connection and formation.

Description

technical field [0001] The invention relates to the technical field of material connection and forming. Background technique [0002] Material connection is to connect two or more materials (including metals and non-metals, composite materials, compounds, etc.) together through certain process conditions to form a complete structure with certain performance. The material connection structure has the excellent properties of various materials, so it has been widely used in aerospace, space technology, nuclear industry, microelectronics, automobile, petrochemical and other fields. [0003] The progress of modern science and technology has increasingly increased the requirements for material science and engineering technology. The development of new high-performance structural parts and advanced connection technology has become an urgent problem for high-tech enterprises. areas are more evident. For example, the heat pipe structure in the aerospace field and the national produ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B23K20/02B23K20/04B22D18/02B22D19/16B21J5/06B21B47/00B32B37/15
Inventor程远胜马卓识姜巨福
OwnerHARBIN INST OF TECH