Flaring is the reshaping of sheet metal edges. This manufacturing process is used for joining sheet metal, as described in this guideline. The necessary work steps for a flanged connection depend on the requirements for the sheet metal part and the flanging technique to be used based on experience. Depending on the flanging shape and tolerance requirements, the manufacturing data must be determined experimentally in individual cases.*www.vdi.de/3001
VDI 3001-1998 history
1998VDI 3001-1998 Hemming of panels of body in white
1992VDI 3001-1992 Clinching of panels in body in white