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为了精加工冷硬铸铁零件,许多汽车制造厂已越来越广泛地采用立方氮化硼和矿物陶瓷来代替硬质合金。大多数研究文献都论述了未淬火铸铁的加工。然而加工冷硬铸铁的文献资料既不全面,也不系统,这对其客观对比造成了困难。全苏工具科学研究院对复合材料和矿物陶瓷的切削性能进行了一系列对比试验。试验在16K20Φ1车床上进行,加工了用铸铁(硬度HRC45—50)制作的发动机气缸套(直径130毫米,长度224毫米)。缸套固定在刚性心轴
In order to finish chilled cast iron parts, many car manufacturers have increasingly adopted cubic boron nitride and mineral ceramics instead of cemented carbide. Most research literature discusses the processing of unquenched cast iron. However, the processing of chilled cast iron literature is neither comprehensive nor systematic, which makes it difficult to objectively compare. Quanzhou Tool Science Institute of composite materials and ceramic cutting performance of a series of comparative experiments. The tests were carried out on a 16K20Φ1 lathe and engine cylinder liners (130 mm in diameter and 224 mm in length) made of cast iron (hardness HRC 45-50) were machined. Cylinder fixed to the rigid mandrel