Development of a Bore Using Jet Electrochemical Machining (JECM) in SS316 Alloy

2019 ◽  
pp. 461-471
Author(s):  
J. Deepak ◽  
N. Vivek ◽  
B. MouliPrasanth ◽  
P. Hariharan
Keyword(s):  
Electrochemical Machining ◽  
Jet Electrochemical Machining

Green Laser Drilling Assisted with Jet Electrochemical Machining of Nickel-Based Superalloy

2010 ◽  
Vol 426-427 ◽  
pp. 75-80 ◽  
Author(s):  
H. Zhang ◽  
Jia Wen Xu ◽  
J.M. Wang
Keyword(s):  
Electrochemical Machining ◽  
Frequency Doubling ◽  
Optical Microscope ◽  
Green Laser ◽  
Laser Drilling ◽  
Recast Layer ◽  
Ambient Atmosphere ◽  
Nickel Based Superalloy ◽  
Experimental Apparatus ◽  
Jet Electrochemical Machining

Laser drilling is extensively used in the aerospace and aircraft industries. The most important application is the drilling of fine cooling holes in aero turbine engine components such as nozzle guide vanes and blades. However, laser-drilled holes are typically associated with a number of inherent defects such as recast layer and spatter. In order to solve these problems, a novel hybrid process of laser drilling assisted with jet electrochemical machining (JECM-LD) has been developed to improve the overall quality of laser-drilled holes. The process based on the application of a jet electrolyte, being aligned coaxially with the focused laser beam, on the workpiece surface. The effects of the jet electrolyte during the process mostly consist of electro chemical reaction, effective cooling with materials and transporting debris. A pulsed Nd:YAG laser with frequency doubling is used in the JECM-LD experiments. On the basis of a measurement of laser attenuation in electrolyte, an experimental apparatus system is built and JECM-LD experiments are performed on 0.5mm thickness nickel-based superalloy sheets with the system. The optical microscope is used to detect the experimental results. It is found that the recast layer and spatter have been effectively removed during the JECM-LD compared with laser drilling in ambient atmosphere conditions. The efficiency of JECM-LD with millisecond green laser is about 70% of laser drilling in air.

Modelling and Experimental Investigation of Laser Assisted Jet Electrochemical Machining

CIRP Annals ◽  
2004 ◽  
Vol 53 (1) ◽  
pp. 179-182 ◽  
Author(s):  
A.K.M. DeSilva ◽  
P.T. Pajak ◽  
D.K. Harrison ◽  
J.A. McGeough
Keyword(s):  
Experimental Investigation ◽  
Electrochemical Machining ◽  
Jet Electrochemical Machining

scholarly journals Microstructuring of joining areas in aluminum alloy sheets by Jet Electrochemical Machining

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Rene Schimmelpfennig ◽  
Matthias Hackert-Oschätzchen ◽  
André Martin ◽  
Andreas Schubert
Keyword(s):  
Shear Strength ◽  
Aluminum Alloy ◽  
Ultrasonic Vibration ◽  
Cross Sections ◽  
Electrochemical Machining ◽  
Limited Area ◽  
Tensile Shear Strength ◽  
Tensile Shear ◽  
Aluminum Sheets ◽  
Jet Electrochemical Machining

In this work the increase of the tensile shear strength by means of microstructuring of the metallic part for ultrasonic vibration assisted joining of hybrid compounds is presented. The aluminum alloy EN AW-5083 and a carbon fibre-reinforced plastic (CFRP) from Bond Laminates are used as a material combination. A suitable method is electrochemical processing (ECM). The microstructuring is carried out with continuous electrolyte free jet machining (Jet-ECM): Characteristic of this technology is the restriction of the electric current to a limited area of the electrolyte jet. After describing the materials and sample geometry used, the Jet-ECM technology and the ultrasonic vibration assisted joining process are explained. The strength of the joint is assessed by means of a tensile shear test. The determined results of the tensile shear strength for hybrid connections between microstructured aluminum sheets and CFRP are compared with those of unstructured aluminum sheets. Furthermore, the influence of the microstructure on the tensile shear strength achieved is discussed using metallographic cross-sections of the joining area.

Jet electrochemical machining of the steel 110G13L

2016 ◽  
pp. 34-38 ◽  
Author(s):  
Kh.M. Rakhimyanov ◽  
◽  
V.V. Yanpolskiy ◽  
A.S. Yusupov ◽  
◽  
...  
Keyword(s):  
Electrochemical Machining ◽  
Steel 110G13l ◽  
Jet Electrochemical Machining
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