scholarly journals Studies on the Formation Process of Tungsten Carbide Powder from Tungsten Powder

1969 ◽  
Vol 33 (12) ◽  
pp. 1323-1328 ◽  
Author(s):  
Akio Hara ◽  
Masaya Miyake
Keyword(s):  
Tungsten Carbide ◽  
Formation Process ◽  
Tungsten Powder ◽  
Carbide Powder ◽  
Tungsten Carbide Powder

Submicron Tungsten Carbide Powder Prepared with Ammonium Tungsten Bronze

2013 ◽  
Vol 320 ◽  
pp. 255-258
Author(s):  
Xiao Ming Fu
Keyword(s):  
Tungsten Carbide ◽  
Tungsten Powder ◽  
Tungsten Bronze ◽  
Hydrogen Gas ◽  
Dew Point ◽  
Carbide Powder ◽  
Volume Percent ◽  
Particle Size Analyzer ◽  
Deoxidation Process ◽  
Tungsten Carbide Powder

Submicron tungsten carbide (WC) powder is obtained with ammonium tungsten bronze (ATB). The samples are characterized by laser particle size analyzer and scanning electron microscope (SEM). The analysis confirms that submicron tungsten powder is obtained with ATB through the deoxidation process in the hydrogen gas (Rate of purity: 99.99 %, dew point: -40 °C). And then submicron tungsten powder is carbonized in the hydrogen gas. The volume percent content of submicron WC powder between 0 μm and 1 μm is 83.7 %. Therefore, ATB is advantageous to prepare submicron WC powder via the conventional deoxidation and carbonization processes.

Surface Modification Process by Electrical Discharge Machining with Tungsten Carbide Powder Mixing in Kerosene Fluid

2019 ◽  
Vol 889 ◽  
pp. 115-122
Author(s):  
Van Tao Le ◽  
Tien Long Banh ◽  
Xuan Thai Tran ◽  
Nguyen Thi Hong Minh
Keyword(s):  
Surface Roughness ◽  
Tungsten Carbide ◽  
Electrical Discharge ◽  
Alloy Powder ◽  
Electrical Discharge Machining ◽  
Carbide Powder ◽  
Micro Hardness ◽  
Hard Materials ◽  
Tungsten Carbide Powder ◽  
Better Than

Electrical discharge machining (EDM) process is widely used to process hard materials in the industry. The process of electrical discharge is changed and called PMEDM when alloy powder is added in the oil dielectric. In the current study, the effect of tungsten carbide alloy powder added in the dielectric on the surface roughness (Ra) and the micro hardness of surface (HV) status of the workpiece SKD61 after machining is investigated. Studies show that the surface roughness and the micro hardness of surface obtained by PMEDM is generally better than that by normal EDM. The method can be applied for improving surface quality such as improving strengthening of molds and machine parts.

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