Integrally forming method for compound metals

Abstract

An integral forming method for a composite metal includes: a preparation step including preparing powders of at least two metals or alloys; a formation step including producing a single blank from the powders of one of the at least two metals or alloys by pressing molding or metal injection molding, and then producing a composite metal blank from the single blank and the powders of a remainder of the at least two metals or alloys; and a sintering step including sintering the composite metal blank into a composite metal product. The processing procedures are simplified, and the production is easier. Limitation to the choices of materials is small. The bonding strength of the composite metal is enhanced.

Description

technical field [0001] The invention relates to an integral forming method of a composite metal, in particular to an integral forming method applied to heterogeneous metals or alloys with different specific gravity. Background technique [0002] Please refer to figure 1 , the forming method of the existing composite metal weight body, as shown in the patent case of "Golf Club Head with High Specific Gravity Composite Weight Body" in Taiwan Announcement No. M291310 of China, it is provided with a high specific gravity on the body 91 of a golf club head The composite counterweight body 92 is composed of a counterweight outer layer 921 and a counterweight inner layer 922 of dissimilar metals. [0003] The molding method of the counterweight body 92 is to use casting technology to make the counterweight outer layer 921, and then use pressing technology to combine the metal powder of the counterweight inner layer 922 with the counterweight outer layer 921, and use sintering tech...

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Problems solved by technology

[0004] However, the molding method of the existing counterweight body 92 must first cast the counterweight outer layer 921, and then combine the counterweight inner layer 922 and the counterweight outer layer 921 through pressing and sintering. Processes such as casting, pressing and sintering are inconvenient to manufacture

[0005] Moreover, when casting and sintering are used to form the counterweight outer layer 921 and counterweight inner layer 922, due to the different processing characteristics of casting and sintering, the requirements for the molding properties of the materials are also different, for example: with the same composition but different specific gravity When making the outer layer 921 of the counterweight and the inner layer 922 of the counterweight respectively, the molding properties of the alloy material itself must meet the processing characteristics requirements of casting and sintering, but not all alloy materials are suitable for casting and sintering molding at the same time , so the existing molding method makes the choice of materials limited

[0006] In addition, the forming method of the existing counterweight body 92 first casts the counterweight outer layer 921, and then presses and sinters the counterweight inner layer 922, so the counterweight outer layer 921 and the counterweight inner layer 922 are not integrally formed at the same time. , so that the bonding strength between the weight outer layer 921 and the weight inner layer 922 is insufficient

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