对4Cr5MoSiV1钢进行了高速切削试验,利用光学显微镜和扫描电镜等观察了高速正交切削试验中切削速度变化对切屑形态和绝热剪切带(ASB)的微观结构特征的影响,对ASB形成和发展的影响因素进行了分析,并对ASB的尺寸与分布做了分析.结果表明:切削速度是ASB形成和发展的主要影响因素,随着切削速度的增加,ASB的长度和宽度逐渐减小,间距逐渐增大;刀具前角是影响ASB形成和发展的次要因素.
参考文献
| [1] | 杨扬,程信林.绝热剪切的研究现状及发展趋势[J].中国有色金属学报,2002(03):401-408. |
| [2] | Viktor P. Astakhov .On the inadequacy of the single-shear plane model of chip formation[J].International Journal of Mechanical Sciences,2005(11):1649-1672. |
| [3] | Meyers MA.;LaSalvia JC.;Xue Q.;Nesterenko VF. .Shear localization in dynamic deformation of materials: microstructural evolution and self-organization[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(1-2 Special Issue SI):204-225. |
| [4] | V.F.Nesterenko;M.A.Meyers;T.W.Wright .Self-organization in the initiation of adiabatic shear bands[J].Acta materialia,1998(1):327-340. |
| [5] | M. T. PEREZ-PRADO;J. A. HINES;K. S. VECCHIO .MICROSTRUCTURAL EVOLUTION IN ADIABATIC SHEAR BANDS IN Ta AND Ta-W ALLOYS[J].Acta materialia,2001(15):2905-2917. |
| [6] | Y. B. Guo;David W. Yen .A FEM study on mechanisms of discontinuous chip formation in hard machining[J].Journal of Materials Processing Technology,2004(0):1350-1356. |
| [7] | M. A. Meyers;Y. B. Xu;Q. Xue .Microstructural evolution in adiabatic shear localization in stainless steel[J].Acta materialia,2003(5):1307-1325. |
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