Effect of laser marking on microstructure of medical titanium alloy

2018 ◽  
Vol 2018 (0) ◽  
pp. J0270403
Author(s):  
Hiroki KATO ◽  
Yasushi SERA ◽  
Noriyuki HISAMORI ◽  
Hideo MATSUMOTO
Keyword(s):  
2012 ◽  
Vol 259 ◽  
pp. 311-319 ◽  
Author(s):  
Stefan Rusu ◽  
Aurelian Buzaianu ◽  
Laura Ionel ◽  
Daniel Ursescu ◽  
Dan Gelu Galusca

2014 ◽  
Vol 941-944 ◽  
pp. 2165-2168 ◽  
Author(s):  
Chun Ling Li

Laser direct-part marking is finding increasing use in the tracking of products as they pass through a manufacturing process. But too high heat input of the laser may cause deformation of the product beyond the limit of the drawing. In order to investigate the effect of laser marked Data Matrix symbol on titanium alloy, a Q-switched lamp pumped Nd:YAG laser was used in this research. Two Data Matrix symbols using 16A and 28A of electric current were marked respectively in the center of two titanium alloy sheets with 50mm length and 50mm width and 2mm thickness. To analyze the quality of the laser marking, environmental scanning electron microscope (ESEM) and X-ray diffractometer (XRD) were used. Experimental results showed the HAN’S Q-switched lamp pumped Nd:YAG laser marking system did not cause damage to the titanium alloy.


2018 ◽  
Vol 764 ◽  
pp. 194-200
Author(s):  
Chun Ling Li ◽  
Chang Hou Lu ◽  
Jian Mei Li

In the application of laser marking, the biggest challenge is that machine-readable barcodes with superior quality were not marked consistently. To solve this problem, laser direct-part marking Data Matrix barcode experiments were carried out on titanium alloy substrates, using a Q-switched light-pumped Nd:YAG laser. The microstructure of the symbols was analyzed using an environmental scanning electron microscope (ESEM). The internal micro-stresses of the marked areas were analyzed using X-ray diffractometer (XRD). The influence of the pulse frequency on the symbol contrast is analyzed. Results showed the interaction between the laser and the titanium alloy can be found. This can further explain the physical mechanism of laser direct part marking Data Matrix symbols on titanium alloy substrates.


2017 ◽  
Vol 2017 (0) ◽  
pp. OS1108
Author(s):  
Masaya ABE ◽  
Noriyuki HISAMORI ◽  
Tomohiro HARAI ◽  
Masayoshi MIZUTANI ◽  
Junichi FUJITA ◽  
...  
Keyword(s):  

2003 ◽  
Vol 110 ◽  
pp. 571-576 ◽  
Author(s):  
A. A. Mir ◽  
D. C. Barton ◽  
T. D. Andrews ◽  
P. Church

Author(s):  
Ekaterina Senaeva ◽  
◽  
Nataliya Pugacheva ◽  
Aleksei Makarov ◽  
◽  
...  

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