scholarly journals Material Loading in Inverse Surface Integrity Problem Solution of Cemented Carbide Component Manufacturing by Surface Modification

Procedia CIRP ◽  
2016 ◽  
Vol 45 ◽  
pp. 235-238 ◽  
Author(s):  
X.P. Zhu ◽  
F.G. Zhang ◽  
M.K. Lei ◽  
D.M. Guo
Wear ◽  
2021 ◽  
pp. 203752
Author(s):  
A.R.F. Oliveira ◽  
L.R.R. da Silva ◽  
V. Baldin ◽  
M.P.C. Fonseca ◽  
R.B. Silva ◽  
...  

2017 ◽  
Vol 139 (6) ◽  
Author(s):  
X. P. Zhu ◽  
P. C. Du ◽  
Y. Meng ◽  
M. K. Lei ◽  
D. M. Guo

Inverse problem of manufacturing is studied under a framework of high performance manufacturing of components with functional surface layer, where controllable generation of surface integrity is emphasized due to its pivotal role determining final performance. Surface modification techniques capable of controlling surface integrity are utilized to verify such a framework of manufacturing, by which the surface integrity desired for a high performance can be more effectively achieved as reducing the material and geometry constraints of manufacturing otherwise unobtainable during conventional machining processes. Here, thermal spraying of WC–Ni coatings is employed to coat stainless steel components for water-lubricated wear applications, on which a strategy for direct problem from process to performance is implemented with surface integrity adjustable through spray angle and inert N2 shielding. Subsequently, multiple surface integrity parameters can be evaluated to identify the major ones responsible for wear performance by elucidating the wear mechanism, involving surface features (coating porosity and WC phase retention) and surface characteristics (microhardness, elastic modulus, and toughness). The surface features predominantly determine tribological behaviors of coatings in combination with the surface characteristics that are intrinsically associated with the surface features. Consequently, the spray process with improved N2 shielding is designed according to the desired surface integrity parameters for higher wear resistance. It is demonstrated that the correlations from processes to performance could be fully understood and established via controllable surface integrity, facilitating solution to inverse problem of manufacturing, i.e., realization of a material and geometry integrated manufacturing.


Procedia CIRP ◽  
2016 ◽  
Vol 45 ◽  
pp. 115-118 ◽  
Author(s):  
F. Schneider ◽  
R. Bischof ◽  
B. Kirsch ◽  
C. Kuhn ◽  
R. Müller ◽  
...  

2010 ◽  
Vol 2010.8 (0) ◽  
pp. 49-50
Author(s):  
Hongge GUO ◽  
Ryoji KITADA ◽  
Akira OKADA ◽  
Yoshiyuki UNO

Author(s):  
M. K. Lei ◽  
X. P. Zhu ◽  
D. M. Guo

High-performance manufacturing is difficult to perform using conventional materials removal processes since a surface integrity demand for high-performance components is strongly restricted by intrinsic interactions between the geometrical feature of components and the physical and chemical characteristics of the base material. Surface modification techniques based on known processing loads, including mechanical, thermomechanical, and thermochemical loads, are utilized for manufacturing the Fe–Cr–Ni austenitic stainless steel components. The geometrical feature and the physical and chemical characteristics as well as the controllable interactions between them are identified in the surface integrity of the surface-modified components by creating new surface layers coupled with base material. The effective surface states control, including surface morphology, microhardness, and residual stress, leads to surface integrity improvement by reducing geometrical, physical, and chemical constraints from base materials, otherwise unobtainable merely using conventional materials removal manufacturing. The fatigue life of the surface-modified components is significantly increased due to the improved surface integrity. It is proposed that high surface integrity possesses a pivotal role between the functional properties of components and their geometrical feature and materials characteristics for the high-performance manufacturing.


Sign in / Sign up

Export Citation Format

Share Document