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首页> 外文会议>International Conference on Multi-Material Micro Manufacture >Improving laser microcutting quality of AZ31 Mg alloy by submerged cutting for manufacturing of biodegradable stents
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Improving laser microcutting quality of AZ31 Mg alloy by submerged cutting for manufacturing of biodegradable stents

机译：通过浸没切割改善AZ31 mg合金的激光微包质量，用于制造可生物降解支架

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Cardiovascular stents are typically produced by laser microcutting of tubular precursors. The cutting edge quality is a key factor for the correct interaction between the human body and the inserted biomedical device. The reduction or elimination of dross during process is desired for increased productivity in manufacturing. Laser cutting with the aid of submersion liquid can improve the cut edge quality, which can be exploited also in the case of manufacturing of biodegradable stents in Mg alloys. In this work, submersion cutting of AZ31 Mg alloy with a pulsed green fibre laser is demonstrated. Three different submersion liquids, namely pure water, ethanol-water solution and paraffin based lubricant oil were used and compared to dry cutting condition. The impact on quality was quantified by the amount of deposited dross and complete cut penetration. The results show that surface dross can be remarkable reduced by the correct selection of submersion liquid and laser processing parameters.
机译：心血管支架通常是通过管状前体的激光微包产生的。切削刃质量是人体与插入的生物医学装置之间正确相互作用的关键因素。期望在工艺期间减少或消除渣滓，以增加制造业的生产率。借助浸没液体的激光切割可以改善切割边缘质量，这也可以在Mg合金中制造可生物降解支架的情况下开采。在这项工作中，证明了AZ31 Mg合金的AZ31 Mg合金的浸没切割。使用三种不同的浸入式液体，即纯水，乙醇 - 水溶液和石蜡基润滑油，与干切割条件相比。通过沉积的渣滓量和完全切除渗透量量化对质量的影响。结果表明，通过正确的浸没液和激光加工参数选择，表面渣滓可以显着降低。

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