Titanium alloy human body shoulder joint preform

Abstract

The invention discloses a titanium alloy human body shoulder joint preform, and belongs to the field of medical metal forgings. The preform comprises a shoulder joint inserting part and a shoulder joint half sphere, wherein the shoulder joint inserting part is of a rod-shaped structure with a relatively thin end and a thick end, and the shoulder joint half sphere is located at the thick end of theshoulder joint inserting part; the plane of the shoulder joint half sphere is in inserted connection with the thick end of the shoulder joint inserting part. The preform is characterized in that a first limit installation groove is formed in the 1 / 4 position of the thin end of the shoulder joint inserting part, a second limiting installation groove is formed in the 1 / 2 position of the thin end ofthe shoulder joint inserting part, the first limiting installation groove and the second limiting installation groove have semicircular cross sections, and the first limiting installation groove andthe second limiting installation groove are formed in a pair of large planes of the shoulder joint inserting part. According to the preform, the radial forging process is used, so that the metal characteristic is ensured, and the preform can handle complex machining programs; the preform has certain mechanical properties, and can meet the requirement for long service life of medical substitutes.

Description

technical field [0001] The invention belongs to the field of medical metal forgings, and in particular relates to a titanium alloy human body shoulder joint preform. Background technique [0002] Titanium alloy materials have excellent properties: small specific gravity, high specific strength, and extremely corrosion resistance. They have become important structural materials in the fields of missiles, rockets, and medical treatment. Among them, titanium alloy materials are mostly used as prosthetics in the medical field, that is, artificial prostheses specially designed and manufactured to compensate for amputees or incomplete limbs with engineering techniques and methods, also known as "prosthetics". The function is to replace part of the functions of the lost limbs, so that the amputees can recover a certain ability to take care of themselves and work. [0003] At present, in the field of medical prosthetics, titanium alloy materials are mostly made by casting or turnin...

AI Technical Summary

Problems solved by technology

Among them, turning will cause a large waste of materials, low processing efficiency, and increased cost. Secondly, the grain size of the microstructure of the turned prosthesis is not dense enough, which reduces the performance indicators of the product, thereby reducing the service life of the product; while using casting The mechanical properties of the titanium alloy products made are poor, the plasticity is not strong, and the surface finish cannot be guaranteed at the same time. When used as prosthetics, the structure cannot be guaranteed to maintain a reliable structure during long-term use, and it is easy to cause osteolysis; in addition, due to the poor fluidity of the material , it is extremely difficult for the material to completely fill the cavity during the casting process; moreover, the particularity of the structure of the prosthesis and the complexity of the medical titanium alloy process make this type of product unsuitable for casting and mass production

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