| The quality of incremental forming depended largely on the spatial feed path of tool. Appropriate tool path can equalize the strain distribution across the surface of a part in negative ISF. The forming of bulging presents a process that the shape of part is approached to the final profile from a plate sheet. A novel tool feed path generation method is presented in this paper. A series of inchmeal approximating surfaces can be obtained from hydraulic bulging CAE analysis results, consequently the tool spatial feed path can be generated based each surface. This method approach the final contour of part inchmeal, thus exert the sheet deformation capability in negative incremental forming. The work detailed in this paper focuses on finite element analyses about hydraulic bulging and multi-passes incremental forming using PAM-STAMP software. |
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