Fiber laser cutting of AZ31 magnesium alloy: numerical and experimental investigation

2015 ◽  
Author(s):  
Huafeng Guo ◽  
Juli Li ◽  
Min He ◽  
Xiao Wu ◽  
Tao Sun
Micromachines ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. 485
Author(s):  
Erika García-López ◽  
Juansethi Ibarra-Medina ◽  
Hector Siller ◽  
Jan Lammel-Lindemann ◽  
Ciro Rodriguez

Magnesium alloys are of increasing interest in the medical industry due to their biodegradability properties and better mechanical properties as compared to biodegradable polymers. Fiber laser cutting of AZ31 magnesium alloy tubes was carried out to study the effect of cutting conditions on wall surface roughness and back-wall dross. During the experiments, an argon gas chamber was adapted in order to avoid material reactivity with oxygen and thus better control the part quality. A surface response methodology was applied to identify the significance of pulse overlapping and pulse energy. Our results indicate minimum values of surface roughness (Ra < 0.7 μm) when the spot overlapping is higher than 50%. A back-wall dross range of 0.24% to 0.94% was established. In addition, a reduction in back-wall dross accumulations was obtained after blowing away the dross particles from inside the tube using an argon gas jet, reaching values of 0.21%. Laser cutting experimental models show a quadratic model for back-wall dross related with the interaction of the pulse energy, and a linear model dependent on pulse overlapping factor for surface roughness.


2021 ◽  
pp. 108896
Author(s):  
Seong Y. Oh ◽  
Jae Sung Shin ◽  
Seungkyu Park ◽  
Sungok Kwon ◽  
Sungmo Nam ◽  
...  

2016 ◽  
Vol 84 ◽  
pp. 134-143 ◽  
Author(s):  
Nguyen Phi Long ◽  
Yukihiro Matsunaga ◽  
Toshihide Hanari ◽  
Tomonori Yamada ◽  
Toshiharu Muramatsu

2010 ◽  
Vol 42 (7) ◽  
pp. 1974-1989 ◽  
Author(s):  
S. M. Chowdhury ◽  
D. L. Chen ◽  
S. D. Bhole ◽  
E. Powidajko ◽  
D. C. Weckman ◽  
...  

2000 ◽  
Vol 50 (9) ◽  
pp. 446-450 ◽  
Author(s):  
Ichinori SHIGEMATSU ◽  
Naobumi SAITO ◽  
Masaru NAKANISHI ◽  
Mamoru MABUCHI ◽  
Harutoshi MATSUYAMA ◽  
...  

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