Pulsed Nd:YAG laser cutting of NiTi shape memory alloys-Influence of process parameters
Pulsed Nd:YAG laser cutting of NiTi shape memory alloys-Influence of process parameters
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DOI：
10.1016/j.jmatprotec.2010.07.004
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发表时间：
2010-11-01
影响因子：
6.3
通讯作者：
Barcikowski, Stephan
中科院分区：
文献类型：
--
作者：
Pfeifer, Ronny;Herzog, Dirk;Barcikowski, Stephan
形状记忆合金（SMA），特别是镍钛诺（NiTi），由于其优异的性能，例如形状记忆效应（SME）和高生物相容性，在研究和工业中越来越受到关注。显然，有必要使用提供高精度并保持形状记忆效应的合适的加工方法从NiTi片材加工这些元件。研究了脉冲Nd：YAG激光切割1 mm厚NiTi形状记忆合金医用植入物的工艺。由于局部能量输入，仅出现小的热影响区（HAZ），并且形状记忆性能保持不变。关键参数，如脉冲能量，脉冲宽度和光斑重叠切割几何形状，粗糙度和热影响区的影响。(C)2010爱思唯尔有限公司版权所有。
Shape memory alloys (SMAs), in particular Nitinol (NiTi), are of increasing interest in research and industry due to their outstanding properties, e.g. the shape memory effect (SME) and high biocompatibility. Obviously, it is necessary to machine these elements from NiTi sheet materials using suitable processing methods that provide high precision and retain the shape memory effect. Pulsed Nd:YAG laser cutting of 1 mm thick NiTi shape memory alloys for medical applications (SMA-implants) has been investigated. Due to the local energy input only small heat-affected zones (HAZ) occur and the shape memory properties remain. The influence of key parameters like pulse energy, pulse width, and spot overlap on the cut geometry, roughness and HAZ is shown. (C) 2010 Elsevier B.V. All rights reserved.