Study on serrated chip formation and tool wear of cermet tools for milling stainless steel 3Cr13Cu

Study on serrated chip formation and tool wear of cermet tools for milling stainless steel 3Cr13Cu
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金属陶瓷刀具铣削不锈钢3Cr13Cu时锯齿状切屑形成及刀具磨损研究

DOI:
10.1007/s00170-014-6476-1
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发表时间:
2015-03
期刊:
Int J Adv Manuf Technol
影响因子:
--
通讯作者:
Siwen Tang
Siwen Tang
中科院分区:
其他
文献类型:
--
作者:
Pengnan Li;Xinyi Qiu;Lina Zhang;Siwen Tang

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采用金属陶瓷刀具铣削不锈钢3Cr13Cu(44HRC),研究了刀具的失效模式及锯齿形切屑的形成对刀具磨损的影响。裂纹和剥落是金属陶瓷刀具的主要失效形式,因为它们在切削过程中形成机械疲劳裂纹和热裂纹。在较低的切削速度下,在刀具前刀面处的机械疲劳裂纹比热裂纹更早产生,而在较高的切削速度下,在刀具前刀面处更早产生的是热裂纹。试验表明,金属陶瓷刀具的边界磨损和锯齿形切屑的形成与机械疲劳裂纹的形成密切相关。
Cermet tools are used to mill stainless steel 3Cr13Cu (44HRC) for studying tool failure modes and the influence of the serrated chip formation on tool wear. Crack and peeling are identified to be the main failure modes of the cermet tool as they form mechanical fatigue cracks and thermal cracks in a cutting process. At lower cutting speeds, the mechanical fatigue crack is produced earlier than the thermal crack at the tool rake face, while at higher cutting speeds, it is the thermal crack that was generated earlier at the tool rake face. The experiments demonstrate that the boundary wear and the serrated chip formation of cermet tools are closely related with the mechanical fatigue crack formation.
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期刊: The International Journal of Advanced Manufacturing Technology
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