Morphing technology for generating intermediate roughing models in multi-axis machining for complex parts

In multi-axis milling of the aviation complex parts, establishing accurate machining process model is a key technology to realize intelligent processing. In order to obtain accurate machining process model of the aviation complex parts, a method based on morphing technology to construct intermediate process models of multi-axis roughing is proposed. Firstly, the theoretical basis for morphing technology is introduced, and the mathematical model of three hermite transfinite interpolation for morphing technology is established. Then the process constraint which impacts the geometry of the intermediate process model is analyzed in morphing technology. According to the analysis of the process constraint to design the process parameters, and the process parameters with constraints are introduced to the morphing technology to construct the process models. Finally, a validation is conducted on a complex aviation parts. The example shows that the method can able to construct the intermediate process models of complex structure parts for multi-axis rough machining under the condition of controlling the machining allowance, and also can shorten the total processing time of the complex parts, to a certain extent, the processing efficiency is improved.

[1]  Bert Lauwers,et al.  3D Morphing for Generating Intermediate Roughing Levels in Multi-Axis Machining , 2005 .

[2]  Les A. Piegl,et al.  Computing offsets of NURBS curves and surfaces , 1999, Comput. Aided Des..

[3]  J. N. Lee.  Tool path generation method for multi-axis machining of helical milling cutter with specific cross-section profile , 2007 .

[4]  Hyesung Jeon,et al.  A touch-probe path generation method through similarity analysis between the feature vectors in new and old models , 2016 .

[5]  Daniel C. H. Yang,et al.  Volume Interior Parameterization for Automated Unified Machining Process of Freeform Surfaces , 2011, ICFCE.

[6]  Douglas DeCarlo,et al.  Topological Evolution of Surfaces , 1996, Graphics Interface.

[7]  Ahmet Can,et al.  A novel iso-scallop tool-path generation for efficient five-axis machining of free-form surfaces , 2010 .

[8]  Byoung K. Choi,et al.  Sculptured Surface Machining: Theory and applications , 2012 .

[9]  R.T. Farouki,et al.  The approximation of non-degenerate offset surfaces , 1986, Comput. Aided Geom. Des..

[10]  Jae-Woo Lee,et al.  A new accurate curvature matching and optimal tool based five-axis machining algorithm , 2009 .

[11]  Robert B. Jerard,et al.  C-space approach to tool-path generation for die and mould machining , 1997, Comput. Aided Des..

[12]  Robert B. Jerard,et al.  Sculptured Surface Machining , 1998 .

[13]  A. Can,et al.  Five-axis tool path generation for 3D curves created by projection on B-spline surfaces , 2010 .

[14]  Cao Li-xin.  Research on contact problem of surfaces and contact characteristics of offset surfaces , 2007 .

[15]  Anne Verroust-Blondet,et al.  Three-dimensional metamorphosis: a survey , 1998, The Visual Computer.

[16]  Bin Huang,et al.  A Unified Approach for Integrated Computer-Aided Design and Manufacturing , 2013 .

[17]  James P. Ducan,et al.  Sculptured Surfaces in Engineering and Medicine , 1983 .

[18]  Thomas Villmann,et al.  Evolutionary algorithms using a neural network like migration scheme , 2002, Integr. Comput. Aided Eng..

[19]  Takafumi Saito,et al.  NC machining with G-buffer method , 1991, SIGGRAPH.

[20]  Seung Ryong Han.  New Unified Machining Process Planning Using Morphing Technology , 2011 .