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作者根据文献的阅读及生产实际中的观察，进行了有关改进铰刀其些几何要素的初步分析和试验，对机用铰刀的几何形状提出了几点意见。并认为研究铰刀的几何形状可以更合理地设计铰刀，改进铰刀的质量，降低制造铰刀的费用和节省贵重金属的消耗量。１９５７年２月５日收到。审查人：刘培德。 铰刀是一种很普短的，已经秣准化的，精加了孔的了具。铰刀在仇器制造中使用得很＊”泛，但是，在利学技术界中折它作有系统的研究坯很不够，贝然近几年来纡铰刀的秣准作了若千的修改和朴充，但是，必须措出，在粽淮中有很冬构造戛素完全是因旗著玟去的老习惯，或所调“传统式的经验”，＃Ｌ根描弦些经验，啕纳了一些经助丑式，并且提出了一些椎测和假定，作力设计铰刀的根据。 在共朦生产巾，较孔常产生梃品，一批制件中质景常不均一，并且刀具的耐用虑衍很低，范些问题可以反映出在刀－具设计上很可能存在有缺陷，因此坩较削迅程及铰刀的设计呵以作一有系统的研究。 本丈根据阅读的文亩和牛产空阮中视察的捻果会重分折了徘铰刀的几何形状方面的防题，进行了一些试验，坩铰 准提出了一些意见Ｏ
Based on the literature reading and the actual production observation, the author carried out preliminary analysis and experiments on some geometric elements of the reamer, and put forward some suggestions on the geometry of the reamer. And that the study of reamer geometry can be more reasonable design reamer, reamer to improve the quality and reduce the cost of manufacturing reamers and save valuable metal consumption. Received on February 5, 1957. Reviewer: Liu Peide. Reamer is a very short, has been standardized, refined hole with a. Reamers are very ubiquitous in the manufacture of weapons of aggression, but it is not enough to systematically study them in the academic world in the technical community. However, in recent years, there have been a number of changes in the standards of reamers However, it is imperative to note that there is a very winter structure in the Sui Dynasty. Suseong Suseong Suseong Suseong-gu is entirely due to the old habit of hanging or to the “traditional experience” A number of studies have been made on the basis of some assumptions and assumptions about the design of reamers. The durability of the tool is so low that some of the problems can be reflected in the design of the tool, which is likely to be flawed, so the crucible is faster than the cutting speed and reamer design. Mu mu and cattle production Nguyen observed in the twisting of fruit will re-break the geometry of the reamer reamer aspects of the problem, carried out a number of tests, put forward some suggestions