Functionality of Laser-Sintered Shape Memory Micro-Actuators

被引:13
作者
Dudziak, S. [1 ]
Gieseke, M. [1 ]
Haferkamp, H. [1 ]
Barcikowski, S. [1 ]
Kracht, D. [1 ]
机构
[1] Laser Zentrum Hannover eV, D-30419 Hannover, Germany
来源
LASER ASSISTED NET SHAPE ENGINEERING 6, PROCEEDINGS OF THE LANE 2010, PART 2 | 2010年 / 5卷
关键词
rapid manufacturing; laser sintering; shape memory alloys; nickel; titanium; one-way effect; ALLOYS;
D O I
10.1016/j.phpro.2010.08.088
中图分类号
O59 [应用物理学];
学科分类号
摘要
NiTi shape memory alloys are considered to be difficult to machine. Dimensional accuracy can hardly be met especially in micro-machining. Being a non-contact tool and therefore independent from machining forces, the laser is a promising alternative for manufacturing NiTi powders. Structures with a minimum width of approximately 50 mu m can be generated without losing the special shape memory properties. The structures "remember" the shape which was set in the laser process. We show that phase transformation temperature can be influenced by process parameters. (C) 2010 Published by Elsevier B.V.
引用
收藏
页码:607 / 615
页数:9
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