An experimental investigation on the effect of radial rake angle and machining conditions during end milling on wear resistance and residual stress of nimonic 263 alloy

2019 ◽  
Vol 6 (12) ◽  
pp. 126568 ◽  
Author(s):  
S Gowthaman ◽  
T Jagadeesha
Keyword(s):  
Residual Stress ◽  
Experimental Investigation ◽  
Wear Resistance ◽  
End Milling ◽  
Rake Angle ◽  
Machining Conditions ◽  
Radial Rake Angle

Tribological effects of laser surface texturing and residual stress

2018 ◽  
Vol 70 (1) ◽  
pp. 126-132 ◽  
Author(s):  
Shuwen Wang ◽  
Feiyan Yan ◽  
Ao Chen
Keyword(s):  
Residual Stress ◽  
Wear Resistance ◽  
Friction And Wear ◽  
Surface Texturing ◽  
Laser Surface ◽  
Friction Reduction ◽  
Laser Surface Texturing ◽  
Wear Testing ◽  
Content Type ◽  
Surface Textures

Purpose The purpose of this paper is to investigate the tribological effects of laser surface texturing (LST) and residual stress on functional surfaces. Design/methodology/approach Three different surface textures (circular dimple, elliptical dimple and groove) with two different textured area ratios (10 and 20 per cent) are designed and fabricated by a Picosecond Nd YAG Laser machine. The friction and wear performance of textured specimens is tested using a UMT-2 friction and wear testing machine in mixed lubrication. Findings Test results show that elliptical dimples exhibit the best performance in wear resistance, circular dimples in friction reduction and grooves in stabilization of friction. The surfaces with larger textured area density exhibit better performance in both friction reduction and wear resistance. The improved performance of LST is the coupled effect of surface texture and residual stress. Originality/value The findings of this study may provide guidance for optimal design of functional surface textures in reciprocating sliding contacts under mixed or hydrodynamic lubrication, which can be used in automotive and other industrial applications.

Prediction of surface residual stress in end milling with Gaussian process regression

Measurement ◽  
2021 ◽  
pp. 109333
Author(s):  
Minghui Cheng ◽  
Li Jiao ◽  
Pei Yan ◽  
Lvchen Feng ◽  
Tianyang Qiu ◽  
...  
Keyword(s):  
Residual Stress ◽  
Gaussian Process ◽  
End Milling ◽  
Gaussian Process Regression ◽  
Surface Residual Stress
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