초록 ▼

A computerized process to generate ply patterns for manufacturing industrial parts by stacking and molding a large number of plies is based on solid modeling. The outermost shell of the part is unfolded to a planar pattern using a surface development procedure. The part is decomposed based on the pl

A computerized process to generate ply patterns for manufacturing industrial parts by stacking and molding a large number of plies is based on solid modeling. The outermost shell of the part is unfolded to a planar pattern using a surface development procedure. The part is decomposed based on the ply thickness; the shell with the ply thickness is removed from the solid model once the surface is unfolded. A set of ply patterns are formed by repeating the unfolding process until no more volume remains. More accurate patterns are produced in less time, especially plies for complexly shaped composite parts such as aircraft engine components.

대표청구항 ▼

A computerized ply pattern generation process to be used in the manufacture of industrial parts by stacking and joining a plurality of plies comprising: providing a 3-dimensional solid model of the part and a mid-surface thereof; decomposing said part model into nested shells each having a thickness

A computerized ply pattern generation process to be used in the manufacture of industrial parts by stacking and joining a plurality of plies comprising: providing a 3-dimensional solid model of the part and a mid-surface thereof; decomposing said part model into nested shells each having a thickness approximately equal to the net thickness of the plies; unfolding said shells in sequence to respective planar patterns using a surface development procedure; and determining contours of the planar patterns which are the boundaries of the respective plies.