Evaluation of Side Wall Roughness and Material Removal Rate in Vibration Assisted Powder Mixed Micro-EDM Drilling on Inconel 718

2019 ◽  
pp. 381-389
Author(s):  
Deepak G. Dilip ◽  
Satyananda Panda ◽  
Jose Mathew
Keyword(s):  
Material Removal Rate ◽  
Inconel 718 ◽  
Material Removal ◽  
Removal Rate ◽  
Side Wall ◽  
Micro Edm ◽  
Wall Roughness ◽  
Edm Drilling

Automatic Characterization of the Material Removal Rate in Laser Manufacturing of TiAl6V4 and Inconel 718

2009 ◽  
Author(s):  
Leonardo Orazi ◽  
Gabriele Cuccolini ◽  
Giovanni Tani
Keyword(s):  
Material Removal Rate ◽  
Inconel 718 ◽  
Material Removal ◽  
Numerical Models ◽  
Removal Rate ◽  
Industrial Applications ◽  
Milling Process ◽  
Laser Source ◽  
Automated Method ◽  
Laser Milling

In this paper a system for the automatic determination of the material removal rate during laser milling process is presented. “Laser milling” can be defined as an engraving process with a strictly controlled penetration depth. In industrial applications, when a new material have to be machined or a change in the system set-up occur the user has to perform a time-consuming experimental campaign in order to determine the correlation between the material removal rate and the process parameters. In these cases the numerical models present some limits due to the elevated calculation time requested to simulate the laser milling of industrial features. In the proposed system, based on a regression model approach, the empirical coefficients, that provide the material removal rate, are automatically generated by a specific software according to the different materials that have to be processed. A description of the automated method and the results obtained in engraving TiAl6V4 and Inconel 718 superalloy with a fiber laser are presented. The system can be adapted to every combination of material/laser source.

Study on the Effect of Nano and Micro MoS2 Powder in Micro-Electrical Discharge Machining

2011 ◽  
Vol 264-265 ◽  
pp. 1450-1455 ◽  
Author(s):  
Gunawan Setia Prihandana ◽  
Tutik Sriani ◽  
Kei Prihandana ◽  
Yuta Prihandana ◽  
Muslim Mahardika ◽  
...  
Keyword(s):  
Surface Quality ◽  
Material Removal Rate ◽  
Electrical Discharge ◽  
Material Removal ◽  
Electrical Discharge Machining ◽  
Removal Rate ◽  
Micro Edm ◽  
Micro Electrical Discharge Machining ◽  
Powder Suspension ◽  
Size Powder

The application of powder mixed dielectric to improve the efficiency of electrical discharge machining (EDM) has been acknowledged extensively. However, the study of micro-size powder suspension in micro-EDM field is still limited. In this research, nano and micro size powder of MoS2 were used as catalyst agent. Powder suspension in different size was able to provide significant improvement in material removal rate and surface quality to increase the efficiency in μ- EDM processes.

Material Removal Rate of Zirconia in Electro Discharge Micromachining

2015 ◽  
Vol 1115 ◽  
pp. 20-23
Author(s):  
Banu Asfana ◽  
Mohammad Yeakub Ali ◽  
Abdul Rahman Mohamed ◽  
Wayne N.P. Hung
Keyword(s):  
Experimental Investigation ◽  
Material Removal Rate ◽  
Empirical Model ◽  
Rotational Speed ◽  
Material Removal ◽  
Removal Rate ◽  
Micro Edm ◽  
Tungsten Electrode ◽  
Design Expert ◽  
Optimum Parameters

This paper investigates the material removal rate (MRR) in electro discharge micromachining (micro-EDM) of zirconia. Experimental investigation is carried out with 800 μm diameter tungsten electrode with two varying parameters rotational speed and gap voltage. The MRR data are analyzed and an empirical model is developed using Design Expert software. The optimum parameters for maximum MRR are found to be 375 rpm rotational speed and 80 V gap voltage.

EXPERIMENTAL INVESTIGATION OF EFFECT OF CRYO-TREATMENT ON MICROMILLING OF INCONEL 718

2020 ◽  
Vol 27 (11) ◽  
pp. 2050001
Author(s):  
PADMAJA TRIPATHY ◽  
KALIPADA MAITY
Keyword(s):  
Tool Wear ◽  
Material Removal Rate ◽  
Inconel 718 ◽  
Material Removal ◽  
High Speed ◽  
Removal Rate ◽  
Cryogenic Treatment ◽  
High Speed Steel ◽  
End Mill ◽  
Micro End Mill

In this paper, the effect of cutting parameters during micromilling on surface finish and material removal rate is presented. Inconel 718 alloy and high-speed steel micro end mill are used as work material and cutting tool, respectively. High-speed steel end mill of 1 mm diameter is subjected to cryogenic treatment. Machining studies are performed on Inconel alloy using untreated and cryogenic treated cutters. The milling tests are conducted at three different values of feed rate, cutting speed and depth of cut. Also, tool wear, microstructure and microhardness of different treated and untreated end mill are investigated and discussed in detail. The results showed that cryogenic treatment significantly improved the tool wear. The surface finish produced on machining the work-piece is better with the cryogenic treated tools than when compared with the untreated tools. The material removal rate is better with the cryogenic treated tools than when compared with the untreated tools. Improvement in tool life was up to 53.16% for Inconel 718 material when machined with cryogenically treated micro end mill.

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