Laser cutting of different polymeric plastics (PE, PP and PC) by a CO2 laser beam

2005 ◽  
Vol 159 (3) ◽  
pp. 279-285 ◽  
Author(s):  
F. Caiazzo ◽  
F. Curcio ◽  
G. Daurelio ◽  
F.Memola Capece Minutolo
Keyword(s):  
Laser Beam ◽  
Co2 Laser ◽  
Laser Cutting

scholarly journals Peculiarities in polymer laser cutting

2016 ◽  
Vol 1 (10) ◽  
pp. 33-38
Author(s):  
Юрий Голубенко ◽  
Yuriy Golubenko ◽  
Александр Богданов ◽  
Aleksandr Bogdanov ◽  
Екатерина Тюльпанова ◽  
...  
Keyword(s):  
Laser Beam ◽  
Co2 Laser ◽  
Laser Cutting ◽  
Polymeric Materials ◽  
Process Quality ◽  
Structure And Properties ◽  
A Value ◽  
Material Process ◽  
Optimum Working

In this paper the application of laser cutting methods for polymeric materials working is under consideration. The authors analyze the laser beam effect upon polymers reasoning from the peculiarities of their structure and properties. The methods to eliminate defects at polymer laser cutting, the methods to increase the interaction effectiveness of radiation with material, process quality are offered. To determine the dependences of a cut width and a value of flash formed at the beam input and its output of material worked there were carried out experiments at different rates and constant capacity of CO2-laser. According the results of the researches carried out the optimum working modes were established.

An investigation of the laser cutting process with the aid of a plane polarized CO2 laser beam

1983 ◽  
Vol 4 (4) ◽  
pp. 241-251 ◽  
Author(s):  
M. Lepore ◽  
M. Dell'Erba ◽  
C. Esposito ◽  
G. Daurelio ◽  
A. Cingolani
Keyword(s):  
Laser Beam ◽  
Co2 Laser ◽  
Laser Cutting ◽  
Cutting Process

Improved Method of CO2 Laser Cutting of Aluminum Nitride

2008 ◽  
Vol 130 (2) ◽  
Author(s):  
Raathai Molian ◽  
Pranav Shrotriya ◽  
Pal Molian
Keyword(s):  
Aluminum Nitride ◽  
Laser Beam ◽  
Co2 Laser ◽  
Laser Cutting ◽  
Cutting Speed ◽  
Heat Sinks ◽  
Energy Losses ◽  
Unstable Crack ◽  
Thermochemical Method ◽  
Cut Quality

The traditional “evaporation∕melt and blow” mechanism of CO2 laser cutting of aluminum nitride (AlN) chip carriers and heat sinks suffers from energy losses due to its high thermal conductivity, formation of dross, decomposition to aluminum, and uncontrolled thermal cracking. In order to overcome these limitations, a thermochemical method that uses a defocused laser beam to melt a thin layer of AlN surface in oxygen environment was utilized. Subsequent solidification of the melt layer generated shrinkage and thermal gradient stresses that, in turn, created a crack along the middle path of laser beam and caused material separation through unstable crack propagation. The benefits associated with thermal stress fracture method over the traditional method are improved cut quality, higher cutting speed, and lower energy losses.

Mechanical properties and fatigue behavior of CO2 laser beam welded armor steel joints

2020 ◽  
Vol 62 (7) ◽  
pp. 689-697
Author(s):  
Zulkuf Balalan ◽  
Furkan Sarsilmaz ◽  
Omer Ekinci
Keyword(s):  
Mechanical Properties ◽  
Laser Beam ◽  
Co2 Laser ◽  
Fatigue Behavior ◽  
Armor Steel ◽  
Steel Joints

Practical Side of Cutting. (3). CO2 Laser Cutting.

1993 ◽  
Vol 62 (2) ◽  
pp. 68-72
Author(s):  
Toshiaki Miyazaki ◽  
Hideyuki Shinonaga
Keyword(s):  
Co2 Laser ◽  
Laser Cutting
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