Dynamic DOE for porthole die extrusion optimisation

Extruded profiles are widely used but their design is still difficult. Several parameters have to be considered. This is particularly true when complex geometries, i.e. non-symmetric or hollow profiles have to be obtained. A novel metamodel technique was proposed to define the relationship between input and output process parameters in porthole die extrusion. An iterative dynamic DOE was finally used to improve the accuracy of the model around the most promising area of the process domain.

[1]  Henry Valberg,et al.  Extrusion welding in aluminium extrusion , 2002 .

[2]  Michael D. Shields,et al.  The generalization of Latin hypercube sampling , 2015, Reliab. Eng. Syst. Saf..

[3]  Joeri Lof,et al.  Developments in finite element simulations of aluminium extrusion , 2000 .

[4]  László Monostori,et al.  AI and machine learning techniques for managing complexity, changes and uncertainties in manufacturing , 2003 .

[5]  Dirk J. Schipper,et al.  Friction conditions in the bearing area of an aluminium extrusion process , 2012 .

[6]  Jie Zhou,et al.  FE analysis of metal flow and weld seam formation in a porthole die during the extrusion of a magnesium alloy into a square tube and the effect of ram speed on weld strength , 2008 .

[7]  R. Mayavaram,et al.  Optimization of Bearing Lengths in Aluminum Extrusion Dies , 2013 .

[8]  Jie Zhou,et al.  Extrusion of 7075 aluminium alloy through double-pocket dies to manufacture a complex profile , 2009 .

[9]  Liping Sun,et al.  Effects of process parameters and die geometry on longitudinal welds quality in aluminum porthole die extrusion process , 2010 .

[10]  Yao Fu,et al.  FEM simulation of aluminum extrusion process in porthole die with pockets , 2010 .

[11]  Jie Zhou,et al.  3D FEM simulation of the whole cycle of aluminium extrusion throughout the transient state and the steady state using the updated Lagrangian approach , 2003 .

[12]  Mark Jolly,et al.  Finite element investigations upon the influence of pocket die designs on metal flow in aluminium extrusion: Part I. Effect of pocket angle and volume on metal flow , 2003 .

[13]  A. K. Slone,et al.  A mixed Eulerian–Lagrangian method for modelling metal extrusion processes , 2010 .

[14]  Dong-Yol Yang,et al.  Investigation into the improvement of welding strength in three dimensional extrusion of tubes using porthole dies , 2002 .

[15]  G. Y. Li,et al.  Numerical and experimental study on the extrusion through a porthole die to produce a hollow magnesium profile with longitudinal weld seams , 2008 .

[16]  Giuseppina Ambrogio,et al.  Influence of the process setup on the microstructure and mechanical properties evolution in porthole die extrusion , 2014 .