Evaluation for tool flank wear and its influences on surface roughness in ultra-precision raster fly cutting
Evaluation for tool flank wear and its influences on surface roughness in ultra-precision raster fly cutting
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超精密光栅飞切刀具后刀面磨损评价及其对表面粗糙度的影响
DOI：
10.1016/j.ijmecsci.2016.09.013
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发表时间：
2016-11
影响因子：
7.3
通讯作者：
Shaojian Zhang
中科院分区：
文献类型：
--
作者：
Guoqing Zhang;Suet To;Shaojian Zhang
在超精密加工中，刀具后刀面磨损的发生必然会影响加工表面粗糙度。刀具后刀面磨损及其对已加工表面粗糙度影响的在线评价对于及时发现刀具后刀面磨损，采取进一步措施降低刀具磨损对表面粗糙度的影响具有重要意义。然而，很少有人关注的评价刀具后刀面磨损及其对加工表面粗糙度的影响，在超精密光栅飞切（UPRFC）过程中，特别是使用切削屑。在本研究中，刀具后刀面磨损及其对表面粗糙度的影响进行评估UPRFC通过检查切屑形态。基于切屑形态与刀具后刀面磨损的关系，建立了刀具后刀面磨损影响下的后刀面磨损带宽度和理论表面粗糙度的数学模型。理论和实验结果表明：（1）刀具后刀面磨损导致切屑在刀具入口处形成百叶窗状结构，而不是羽毛状结构。(2)切屑在切屑厚度与磨损区宽度相当的地方被截断。(3)光滑后刀面磨损增加了刀尖半径，理论上降低了表面韧性。
The occurrence of tool flank wear certainly affects the machined surface roughness in ultra-precision machining. The in-process evaluation of tool flank wear and its effects on machined surface roughness is significant, since it helps to find tool flank wear timely and reduce tool wear effect on surface roughness by further actions. However, little attention has been paid to the evaluation of tool flank wear and its effects on machined surface roughness in ultra-precision raster fly-cutting (UPRFC) process especially by using cutting chips. In the present research, evaluation of tool flank wear and its effects on surface roughness is conducted in UPRFC by examination of cutting chip morphologies. Based on the relations between chip morphologies and tool flank wear, a mathematical model was established to identify the width of flank wear land and the theoretical surface roughness under tool flank wear effects. Theoretical and experimental results show that: (1) Tool flank wear occurrence causes the formation of shutter-like structure rather than feather-like structure at the tool entry of cutting chips. (2) Cutting chips are truncated where chip thickness is comparable to the width of wear land. (3) The smooth tool flank wear increase the tool nose radius and therefore reduce the surface toughness theoretically.
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影响因子：
7.3
作者：
E. Emel;E. Kannatey-Asibu
通讯作者：
E. Emel;E. Kannatey-Asibu
超精密光栅铣削中切屑形貌与刀具磨损的关系
DOI：
10.1016/j.ijmachtools.2014.02.005
发表时间：
2014-05
影响因子：
14
作者：
Guoqing Zhang;Suet To;Gaobo Xiao
通讯作者：
Gaobo Xiao
DOI：
10.1016/s0890-6955(02)00266-3
发表时间：
2003-04
影响因子：
14
作者：
M. Sortino
通讯作者：
M. Sortino
DOI：
10.1007/s001700200030
发表时间：
2002-02
期刊：
The International Journal of Advanced Manufacturing Technology
影响因子：
--
作者：
C. Cheung;W. Lee
通讯作者：
C. Cheung;W. Lee
影响因子：
5
作者：
S. Lin;C. Ting
通讯作者：
S. Lin;C. Ting