曲軸加工的技術要求及發(fā)展方向外文翻譯-其他專業(yè)-全文預覽
【正文】 aft, has the processing working procedure few, the economical precision work equipment, the nodal wood energy conservation, the product quality high, the production cost low status merit. Main body and the connecting rod cap separate goal. Trend of development At present, the drop for and the die casting connecting rod host, the important status, are facing the powder to fe the steel connecting rod and a powder agglutination steel connecting rod forming craft challenge. Speaking of the domestic present situation, although the powder metallurgy fing industry had certain development, but must provide the mass and the high grade powder metallurgy fing is not mature. Moreover involves the equipment to renew, aspect expense questions and so on technical change, in next one, in long time, domestically produced connecting rod production also by drop fing craft primarily. The connecting rod is one of internal bustion engine main spare parts, its reducing socket two sizes and the shape position errors have many requests, for example: Diameter, roundness, cylindricity, center distance, parallelism, hole and end surface verticality and so on. How does these erroneous project produce the scene in the workshop to examine, always is in the internal bustion engine profession a quite difficult question. In the connecting rod production, domestic mainly has following several examination method at present: With the spindle survey, namely puts on the spindle in connecting rod two, with the aid of in V shape block, plate, dial guage survey. Because the spindle needs to load and unload, therefore between the hole axis has the gap, the measuring accuracy is very low. 中文翻譯 曲軸加工的技術要求及發(fā)展方向 曲軸加工的技術要求 曲軸的技術要求是很高的，其機械加工工藝過程隨生產(chǎn)綱領的不同和曲軸的復雜程度而有很大的區(qū)別，但一般均包括以下幾個主要階段：定位基準的加工；粗、精車和粗磨各主頸
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