The Heat Upsetting Process for the Titanium Alloy Spherical Bone Screws

Jian Guang Liu; Feng Lei Liu; Hua Dong Liu; Yu Feng Wang; Li Dong Wang

doi:10.4028/www.scientific.net/AMR.1021.15

Paper Titles

Preface, Committee and Sponsors

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Non-Asbestos Gasket Materials for Formula Design
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The Heat Upsetting Process for the Titanium Alloy Spherical Bone Screws
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Effect of Adding Rare Earths into Iron-Carbon Micro Electrolysis Process on Degradation of Dyeing Wastewater
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1021The Heat Upsetting Process for the Titanium Alloy...

The Heat Upsetting Process for the Titanium Alloy Spherical Bone Screws

Abstract:

An advanced heat upsetting technology was studied according to the characteristics of the titanium alloy medical bone screws with spherical head. First, the reasons that punch demoulding is difficult during the upsetting forming have been discussed. Then the forming way with countersunk head in bottom and free forming on top was adopted, and the segmented upsetting die ranging in inner diameter was designed. Finally, the continuous heat upsetting process for medical bone screws was developed. The size, hardness and microstructure of the developed screws meet the standard requirements.