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钢球磨球机砂轮修整技术改进及生产应用 被引量:2
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作者 陈来三 《机电技术》 2003年第B09期188-190,共3页
本文介绍了磨球机砂轮修整方法改进、结构设计、修整参数选择其生产应用。
关键词 球轴承 硬磨加工 球机 砂轮修整 技术改进 修整器 金刚石条
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Microstructure and cutting performance of CrTiAlN coating for high-speed dry milling 被引量:9
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作者 鲁力 王启民 +5 位作者 陈柄洲 敖永翠 余东海 王成勇 伍尚华 Kwang Ho KIM 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第6期1800-1806,共7页
Using a closed field unbalanced magnetron sputtering system,the cemented carbide end mills were coated with a CrTiAlN hard coating,which consisted of a Cr adhesive layer,a CrN interlayer and a CrTiAlN top layer.The mi... Using a closed field unbalanced magnetron sputtering system,the cemented carbide end mills were coated with a CrTiAlN hard coating,which consisted of a Cr adhesive layer,a CrN interlayer and a CrTiAlN top layer.The microstructure and mechanical properties of the coating were investigated by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),micro indentation and scratch test.The cutting performance of the coated end mills were conducted by high-speed dry milling hardened steel(P20,HRC 45).The results indicates that the coating is composed of(Cr,Ti,Al)N columnar grains with nanolayers.The coating exhibits good adhesion to cemented carbide substrate and high microhardness of around 30 GPa.The coated end mills show significant improvement on tool life and much lower cutting force as compared to the uncoated ones.And the related mechanisms were discussed. 展开更多
关键词 CrTiAlN coating high-speed machining hardened steel tool wear
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