Papers by Keyword: Compressor Piston

Abstract: According to the complexity and the loss of experts’ experience and long designers’ learning process of finite element analysis of compressor piston, the design of active knowledge support system based on ANSYS in the design of piston are developed. The system sets of expert experience and design skills in one, can make full use of push-pull technology and push technology for knowledge provide targeted knowledge assistance to the designers of different levels, experience knowledge inheritance is implemented, improving the sharing of experience and knowledge, the learning process knowledge is greatly reduced, truly achieve the high-end design software low starting point for the purpose of application.

Abstract: 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.

Abstract: 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.