scholarly journals Influence of the of electrical discharge alloying methods on the surface quality of carbon steel

2016 ◽  
Vol 89 (5-8) ◽  
pp. 1529-1534 ◽  
Author(s):  
S. Spadło ◽  
P. Młynarczyk ◽  
K. Łakomiec
Keyword(s):  
Carbon Steel ◽  
Surface Quality ◽  
Electrical Discharge ◽  
Electrical Discharge Alloying

Improving the surface quality of semifinished carbon-steel tubes

Metallurgist ◽  
1978 ◽  
Vol 22 (6) ◽  
pp. 390-393
Author(s):  
A. V. Satin ◽  
R. M. Ivanov ◽  
M. L. Shul'kin ◽  
V. S. Lobachev ◽  
L. G. Shub ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Surface Quality ◽  
Steel Tubes

scholarly journals 302 Evaluation of Machined Surface Quality of Long Fiber FRM by Electrical Discharge Machining

2000 ◽  
Vol 2000.53 (0) ◽  
pp. 49-50
Author(s):  
Rikio HIKIJI ◽  
Yoshihiro KAWANO ◽  
Koji ABURADA ◽  
Masakazu HARADA ◽  
Minoru ARAI
Keyword(s):  
Surface Quality ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Machined Surface ◽  
Machined Surface Quality

Effects of Electricity Parameters on Surface Quality of Reaction Bonded Silicon Carbide Ceramic with Electrical Discharge Diamond Grinding

2016 ◽  
Vol 874 ◽  
pp. 15-21 ◽  
Author(s):  
Xiao Shuang Rao ◽  
Fei Hu Zhang ◽  
Chen Li
Keyword(s):  
Surface Roughness ◽  
Silicon Carbide ◽  
Surface Quality ◽  
Electrical Discharge ◽  
Machining Process ◽  
Hybrid Machining ◽  
Micro Cracks ◽  
Sic Ceramic ◽  
Hybrid Machining Process

With some conductivity and low grinding affectivity, a hybrid machining process termed electrical discharge diamond grinding (EDDG) is applied to the precision machining of reaction bonded silicon carbide (RB-SiC) ceramic. As there is electrical spark in the hybrid machining process, the electrical parameters are varied to explore their effects on the surface quality of RB-SiC ceramic with EDDG. In this paper, the experiments of different polarity and gap voltage with EEDG were investigated, and the microstructure and surface roughness on the machined surface of RB-SiC ceramic were analyzed. The surface morphology and micro-cracks were examined with a scanning electron microscope, and the surface roughness was measured with a confocal scanning laser microscope. It is found that surface roughness initially increases and then decreases with increase of the gap voltages and is higher with negative polarity than that with positive polarity. The micromorphology Micro-cracks were observed on the surface machined and are outstanding in re-solidified zone with EDDG.

Surface Quality of Textured Surface on Cylindrical Inner Surface Using Whirling Electrical Discharge Texturing

2013 ◽  
Vol 797 ◽  
pp. 338-343 ◽  
Author(s):  
Vitchuda Lertphokanont ◽  
Takayuki Sato ◽  
Minoru Ota ◽  
Keishi Yamaguchi ◽  
Kai Egashira
Keyword(s):  
Residual Stress ◽  
Surface Roughness ◽  
Friction Coefficient ◽  
Surface Quality ◽  
Electrical Discharge ◽  
Compressive Residual Stress ◽  
Textured Surface ◽  
Feed Speed ◽  
Good Surface

Whirling Electrical Discharge Texturing (WEDT) was developed to create microstructures. It was thought that textured surface with low surface roughness could reduce friction coefficient on the sliding parts. In this research, surface quality was studied to evaluate the quality of WEDT textured surface. Surface quality was evaluated in terms of the surface roughness and surface integrity which were characterized by microstructure, composition and residual stress of the textured surface. The value of Rp and Rv of textured surface after finishing with improved finishing method were obtained as expected for low surface roughness to reduce friction coefficient. In addition, it was clarified that microstructure and composition of textured surface after texturing with WEDT and finishing with lapping-film depend on feed speed. Furthermore, the compressive residual stress was presented on WEDT textured surface and depended on feed speed. It was confirmed that good surface quality of textured surface could be obtained by WEDT.

Investigating the Effects of Powder Mixed Electrical Discharge Machining on the Surface Quality of γ–TiAl Intermetallic

2012 ◽  
Vol 488-489 ◽  
pp. 396-401 ◽  
Author(s):  
B. Jabbaripour ◽  
M.H. Sadeghi ◽  
Mohammad Reza Shabgard ◽  
S. Shajari ◽  
H. Hassanpour
Keyword(s):  
Silicon Carbide ◽  
Surface Quality ◽  
Aluminum Powder ◽  
Automotive Industry ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Machining Parameters ◽  
Working Temperature ◽  
Corrosion Creep

Due to outstanding properties of γ–TiAl intermetallic such as high resistance against fatigue, oxidation, corrosion, creep, dynamic vibration, high working temperature and also its application in aerospace, automotive industry and turbojet engines; in this paper, powder mixed electrical discharge machining (PMEDM) of γ–TiAl intermetallic by means of different additive powders including aluminum (Al), graphite (Gr), silicon carbide (SiC), chrome (Cr) and iron (Fe) is investigated to compare the output characteristic of surface quality and roughness. The results indicate that aluminum powder produces the best surface finish, followed by silicon carbide, graphite, chrome and iron respectively. The experimental results show that in the determined settings of input machining parameters, aluminum powder can improve the surface roughness of TiAl sample about 32%.

Dry WEDM in Improving LS-WEDMed Surface Quality

2008 ◽  
Vol 53-54 ◽  
pp. 387-392 ◽  
Author(s):  
Tong Wang ◽  
Yu Mei Lu ◽  
Shu Qiang Xie ◽  
Shuang Shuang Hao ◽  
H. Zhao
Keyword(s):  
Surface Roughness ◽  
Surface Quality ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Removal Rate ◽  
Wire Electrical Discharge Machining ◽  
Dry Wedm ◽  
Cut Surface ◽  
Discharge Gap

Utilizing gas as the dielectric instead of dielectric liquid has enabled the development of dry wire electrical discharge machining (dry WEDM) technology for finishing cut. Experiment results showed that Low-Speed WEDM (LS-WEDM) in gas offers advantages such as better straightness, and shorter discharge gap. This paper studies on influence of different gas dielectrics, wire winding speed and pulse duration on the WEDMed surface quality (discharge gap, straightness, surface roughness, removal rate) in finishing. New attempt of applying dry WEDM as the 4th cut had been proved feasible in improving conventional multiple cut surface quality of LS-WEDM.

scholarly journals IMPROVE THE SURFACE QUALITY DURING HONING WITH PRELIMINARY CRYOGENIC TREATMENT OF PRODUCTS FROM LOWCARBON STEELS

2021 ◽  
pp. 28-31
Author(s):  
O. A. Kursin ◽  
J. A. Yvon Nkeoua ◽  
M. Yu. Polyanchikova ◽  
A. A. Zhdanov
Keyword(s):  
Carbon Steel ◽  
Surface Quality ◽  
Cryogenic Treatment ◽  
Low Carbon Steel ◽  
New Method ◽  
Low Carbon ◽  
Machined Surface

The article is devoted to the study of a new method of honing with preliminary cryogenic treatment, which improves the quality of the machined surface of low-carbon steel products.

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