典型文献
Turning Affected Layers of GH4169 with Worn Tools
文献摘要:
To solve problems of surface integrity of GH4169 caused by tool wear during machining, residual stresses layers ( RSL) , deformation layers ( DL) , and surface roughness of machined surface were studied in this work. Jobs were done at the turning parameters of vc = 15 m/min and fz = 0.05 mm/r and ap = 1 mm with 6 different worn tools. Firstly, tool nose wear closes to minor flank face and how it influenced machined surface were discussed. Details were given by image processing and it concluded to 5 tool wear states according to cutting time. Secondly, relationships between tool wear states and tensile residual stresses ( RS) were built so the RS range is manageable by placing a cutting time limit. Thirdly, affected layers' depths were associated with tool wear and the consistency between RSL and DL was presented. At last, roughness values variation with cutting time were discussed. Results show that RS in peripheral direction is far larger than that in axial direction. The total cutting time of a tool should be controlled within 37 min and a time period 30-37 min before severely worn owns excellent cutting effects. Tensile RS of 400 MPa can be set as a reference value for evaluating tool quality from angle of workpiece.
文献关键词:
中图分类号:
作者姓名:
Jianfei Sun;Guangsha Hou;Tianming Wang;Wuyi Chen
作者机构:
School of Mechanical Engineering and Automation,Beihang University,Beijing 100191,China;Collaborative Innovation Center of Advanced Aero-Engine,Beijing 100191,China;Beijing Engineering Technological Research Center of High-Efficient and Green CNC Machining Process and Equipment,Beijing 100191,China
文献出处:
引用格式:
[1]Jianfei Sun;Guangsha Hou;Tianming Wang;Wuyi Chen-.Turning Affected Layers of GH4169 with Worn Tools)[J].哈尔滨工业大学学报(英文版),2022(05):1-10
A类:
Worn
B类:
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AB值:
0.585464
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