Development of Vitrified Bond CBN Wheel for Internal Precision Grinding of the Air-Conditioner Compressor Piston Hole

2006 ◽  
pp. 29-32
Author(s):  
Hang Gao ◽  
Y.G. Zheng ◽  
W.G. Liu ◽  
Jian Hui Li
Keyword(s):  
Air Conditioner ◽  
Precision Grinding ◽  
Cbn Wheel ◽  
Compressor Piston ◽  
Vitrified Bond

Development of Vitrified Bond CBN Wheel for Internal Precision Grinding of the Air-Conditioner Compressor Piston Hole

2006 ◽  
Vol 304-305 ◽  
pp. 29-32 ◽  
Author(s):  
Hang Gao ◽  
Y.G. Zheng ◽  
W.G. Liu ◽  
Jian Hui Li
Keyword(s):  
Cost Effective ◽  
Grinding Wheel ◽  
Manufacturing Cost ◽  
Air Conditioner ◽  
Grinding Wheels ◽  
Precision Grinding ◽  
Grinding Performance ◽  
Compressor Piston ◽  
Vitrified Bond ◽  
Cbn Grinding Wheel

Manufacturing of vitrified bond CBN wheels for internal precision grinding of the air-conditioner compressor piston hole is still big challenge to all of the domestic manufacturers. Recently, by choosing pre-melting mixed CBN abrasives and a proper sintering process, a cost-effective method was conceived to produce grinding wheels of comparative quality. The grinding performance of wheels was evaluated with a series of internal precision grinding of compressor piston hole. Experimental results show that the vitrified bond CBN grinding wheel produced by this method has better grinding performance, and can be substitute to the same type of grinding wheels imported. But the manufacturing cost is only 60% of the wheel imported according to estimation.

Development of CBN Internal Grinding Machine for Precision Grinding of the Air-Conditioner Compressor Piston Hole

2009 ◽  
Vol 76-78 ◽  
pp. 43-48
Author(s):  
Y.G. Zheng ◽  
W.G. Liu ◽  
Bin Jiang ◽  
Hang Gao ◽  
S.G. Zheng
Keyword(s):  
High Speed ◽  
Grinding Process ◽  
Air Conditioner ◽  
Precision Grinding ◽  
Cbn Wheel ◽  
Internal Grinding ◽  
Compressor Piston ◽  
High Speed Grinding ◽  
Grinding Mechanism ◽  
Grinding Machine

According to the demand for internal grinding machine in precise machining of air-conditioner compressor piston hole, a kind of high precise CNC internal grinding machine with CBN wheel is developed by adopting self-adaptive control for grinding process. Meanwhile, grinding precision and stability are achieved by overcoming many problems emerging from high-speed grinding process with CBN wheel. More than 100000 times’ grinding experimental results show that the whole performance of grinding machine developed is the same as that of the same kind of international machine. In order to study grinding mechanism with CBN wheels and then improve machine’s capability, grinding data in several machining cycles is analyzed.

Development of Electroplated CBN Wheel with Cemented Carbide Base for Precision Grinding of Compressor Cylinder Vane Slot

2007 ◽  
Vol 329 ◽  
pp. 495-500
Author(s):  
Hang Gao ◽  
W.G. Liu ◽  
Y.G. Zheng
Keyword(s):  
Surface Roughness ◽  
Ground Surface ◽  
Cemented Carbide ◽  
Grinding Wheel ◽  
Precision Grinding ◽  
Base Surface ◽  
Compressor Cylinder ◽  
Cbn Wheel ◽  
Micro Holes ◽  
Ground Surface Roughness

It is experimentally found that existing micro-holes or micro-concaves on the cemented carbide base surface of electroplated CBN wheel is one of important reasons to worsen the combining intensity of the electroplated abrasives layer with the grinding wheel base. It is well solved by sealing the holes or concaves with steam sealing method. Further more the electroplated CBN wheel with cemented carbide base for precision grinding of compressor cylinder vane slot is developed by optimizing the electroplating prescription and process. Productive grinding results show that the ground surface roughness, size precision and the wheel life have reached the advanced index of the same type of wheel imported.

Precision Grinding of SUS304 Using Metal Bonded CBN Wheel

2007 ◽  
Vol 24-25 ◽  
pp. 261-264 ◽  
Author(s):  
Y. Hasuda ◽  
Y. Suzuki ◽  
Y. Tadokoro ◽  
S. Kinebuchi ◽  
T. Ohashi ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Ground Surface ◽  
Grinding Wheel ◽  
Precision Grinding ◽  
Wear Process ◽  
Cbn Wheel ◽  
Grinding Conditions ◽  
Wear Of Grinding Wheel ◽  
Stock Removal ◽  
Fundamental Experiment

The fundamental experiment of the grinding of the stainless steel using the metal bonded CBN wheel which was excellent in wear resistance was conducted. The most appropriate grinding conditions were obtained by clarifying wear process of grinding wheel and finished ground surface quality. When grinding was carried out up to stock removal 7000mm3/mm, radial wear of grinding wheel %R is 3μm and surface roughness Rz was 0.5μm or less. The grinding ratio Gr becomes about 3000, and long life grinding with little change of surface roughness was possible.

Study on precision grinding of screw rotors using CBN wheel

2010 ◽  
Vol 11 (5) ◽  
pp. 651-658 ◽  
Author(s):  
Jing Wei ◽  
Qi Zhang ◽  
ZheZhu Xu ◽  
SungKi Lyu
Keyword(s):  
Precision Grinding ◽  
Cbn Wheel ◽  
Screw Rotors

Precision Grinding of SUS304 Using Metal Bonded CBN Wheel

2007 ◽  
pp. 261-264
Author(s):  
Y. Hasuda ◽  
Y. Suzuki ◽  
Y. Tadokoro ◽  
S. Kinebuchi ◽  
T. Ohashi ◽  
...  
Keyword(s):  
Precision Grinding ◽  
Cbn Wheel

Precision Grinding of High Chromium Steels Using Metal Bonded CBN Wheel

2007 ◽  
Vol 24-25 ◽  
pp. 171-176
Author(s):  
Y. Hasuda ◽  
T. Kato ◽  
R. Meguriya ◽  
Y. Suzuki ◽  
S. Kinebuchi ◽  
...  
Keyword(s):  
Ground Surface ◽  
Surface Characteristics ◽  
Precision Grinding ◽  
High Chromium ◽  
Cbn Wheel ◽  
Abrasive Grains ◽  
Working Surface ◽  
Grinding Ratio ◽  
Cr Steels ◽  
Ground Surface Roughness

In this study, the influences of carbides and alloy additives on ground surface characteristics of several high Chromium (Cr) steels and abrasive grains of working surface were discussed. In the grinding using metal bonded CBN wheel, almost constant values in ground surface roughness and high grinding ratio were shown. 5% Cr steel with Vanadium, 8% Cr steel and 10% Cr steel showed a rougher surface than Cr steels with 3%, 4% and 5% due to the carbide inclusion. The grinding ratio of 5%Cr steel could be raised considerably by adding sulfur to it.

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