Rongqiang Chen

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This paper analyzes the absorbers, air springs and so on-in-one cylinder forming process, tooling technologies. Hydraulic cylinder can be sealed by itself if friction hot forming technology is adopted on hydraulic cylinder at both ends. By going through the technology, two sealing devices of hydraulic parts are saved, the leak of hydraulic parts is avoided,(More)
In this paper the definition and mark method of roughness in engineering drawing were firstly introduced. Then, it analyzed the influence of the roughness for parts work ability. What's more, it expounded the determining principle for parts roughness. In the end, it studied the influence of processing parameters of some typical processing equipment to the(More)
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