Through-process sensitivity analysis on the effect of process variables on strength in extruded Al–Mg–Si alloys

2012 ◽  
Vol 212 (1) ◽  
pp. 171-180 ◽  
Author(s):  
Snorre Kjørstad Fjeldbo ◽  
Yanjun Li ◽  
Knut Marthinsen ◽  
Trond Furu
Keyword(s):  
Sensitivity Analysis ◽  
Process Variables

scholarly journals Optimization and Sensitivity Analysis of the Cutting Conditions in Rough, Semi-Finish and Finish Honing

Materials ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 75
Author(s):  
Irene Buj-Corral ◽  
Lourdes Rodero-de-Lamo ◽  
Lluís Marco-Almagro
Keyword(s):  
Sensitivity Analysis ◽  
Removal Rate ◽  
Desirability Function ◽  
Optimization Process ◽  
Process Variables ◽  
Importance Value ◽  
Internal Surfaces ◽  
Oil Flow ◽  
Hydraulic Cylinders ◽  
Proper Values

Honing processes are currently employed to obtain a cross-hatched pattern on the internal surfaces of cylinders that favors oil flow in combustion engines or hydraulic cylinders. The main aim of the present paper is to optimize the machining conditions in honing processes with respect to surface roughness, material removal rate and tool wear by means of the desirability function. Five process variables are considered: grain size, density, pressure, linear speed and tangential speed. Later, a sensitivity analysis is performed to determine the effect of the variation of the importance given to each response on the results of the optimization process. In the rough and semi-finish honing steps, variations of less than 5% of the importance value do not cause substantial changes in the optimization process. On the contrary, in the finish honing step, small changes in the importance values lead to modifications in the optimization process, mainly regarding pressure. Thus, the finish honing phase is more sensitive to changes in the optimization process than the rough and the semi-finish honing phases. The present paper will help users of honing machines to select proper values for the process variables.

Sign in / Sign up

Export Citation Format

Share Document