Influence of process parameters during pulsed Nd:YAG laser cutting of nickel-base superalloys

2005 ◽  
Vol 170 (1-2) ◽  
pp. 229-239 ◽  
Author(s):  
G. Thawari ◽  
J.K. Sarin Sundar ◽  
G. Sundararajan ◽  
S.V. Joshi
Keyword(s):  
Process Parameters ◽  
Nd:Yag Laser ◽  
Laser Cutting ◽  
Influence Of Process Parameters ◽  
Pulsed Nd:Yag Laser ◽  
Nickel Base Superalloys ◽  
Nickel Base

Studies on pulsed Nd:YAG laser cutting of thick stainless steel in dry air and underwater environment for dismantling applications

2015 ◽  
Vol 71 ◽  
pp. 6-15 ◽  
Author(s):  
Ambar Choubey ◽  
R.K. Jain ◽  
Sabir Ali ◽  
Ravindra Singh ◽  
S.C. Vishwakarma ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Nd:Yag Laser ◽  
Laser Cutting ◽  
Pulsed Nd:Yag Laser ◽  
Dry Air ◽  
Underwater Environment

scholarly journals Laser cladding and wear testing of nickel base hardfacing materials: Influence of process parameters

2017 ◽  
Vol 29 (2) ◽  
pp. 022504 ◽  
Author(s):  
P. Aubry ◽  
C. Blanc ◽  
I. Demirci ◽  
M. Dal ◽  
T. Malot ◽  
...  
Keyword(s):  
Laser Cladding ◽  
Process Parameters ◽  
Wear Testing ◽  
Influence Of Process Parameters ◽  
Nickel Base

Effect of Process Parameters on Weld Penetration During Pulsed Nd:YAG Laser Welding

2014 ◽  
Author(s):  
Mathew Hudon ◽  
Anil Saigal
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Process Parameters ◽  
Nd:Yag Laser ◽  
Gas Flow ◽  
Weld Penetration ◽  
Pulsed Nd:Yag Laser ◽  
Reproducibility Study ◽  
Repeatability And Reproducibility ◽  
Pulsed Nd:Yag Laser Welding

Weld penetration is an important parameter to be considered for given process parameters on a pulsed Nd:YAG laser welding machine. A gauge repeatability and reproducibility study (GR&R), components of variation study (COV), and design of experiments (DOE) are used to understand the relationship between the process parameters and weld penetration on 17-4PH H900, 304 Annealed, and 420 Hardened stainless steel pins joined to a 17-4PH H900 stainless steel block. These stainless steels are selected because of their common use for laser welding of medical devices. The function determined via the DOE is then confirmed empirically by trial laser welds at the determined process settings for different weld penetrations. For a given pulse duration (8 ms), laser beam focus diameter (0.4 mm) and cover gas flow rate (5 L/min), the linear regression equation describing the weld penetration, h(mm) as a function of Peak Pulse Power, Pp(W) is found to be h = 0.001657 (Pp) – 0.389 where 300W < Pp < 1100W.

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