Plasma 3D-Priting of Micro-Punch Array for Fine Embossing into Biomedical Titanium Works

T Aizawa,T Shiratori

doi:10.36959/508/400

Abstract

Biomedical titanium parts and tools required for tailored fine micro-textures to have their surface anti-bacteria. Formation of micro-grooves into a titanium plate by micro-embossing was the first step toward mass-production of titanium parts and tools with anti-bacteria surfaces. Plasma 3D-printing was proposed to fabricate a micro-punch array to transcribe the micro-groove textures into titanium plate.

Highlights

Most of miniature parts and products for medical applications are near-net shaped in dry and cold by metal forming the pure titanium [1]
Different from the mechanical milling or the laser micro-machining, the dimensional accuracy of micro-punch head in the plasma 3D-printing is mainly governed by the spatial resolution in micro-pattering
The screen printing is suitable to draw the micro-pattern with each head width of 50 μm for this plasma 3D-printing

Summary

Introduction

Most of miniature parts and products for medical applications are near-net shaped in dry and cold by metal forming the pure titanium [1]. As reported in [4], micro-textures were shaped onto these titanium and titanium alloyed tools; e.g., an array of microgrooves was needed to fix the targeting cells for classification. Micro-/ nano-texturing was effective to make the titanium part anti-bacterial and to control the bio-activeness of titanium surface [6,7]. Almost all those studies stood on the naturally grown oxide nanostructure; it is difficult or nearly impossible to form the tailored micro-/nano-textures onto the titanium biomedical parts and tools enough to control their bioactive surface conditions

Methods

Discussion

Conclusion