@octane_workholding: ISF - Incrememtal Sheet Forming ISF is a technique where a sheet is formed into the final workpiece by a series of small incremental deformations. Generally, the sheet is formed by a round tipped tool. The tool indents into the sheet by about 1 mm and follows a contour for the desired part. It then indents further and draws the next contour for the part into the sheet and continues to do this until the full part is formed. Figur machine forming