Windshield 3
Photo #5. Use washers the same thickness as the molding to hold the buck up off of the wood topped table or workbench. Screw the buck down with enough room for the molding to slip under without hitting the screws.
Photo #6. Use a wood mallet to start tapping the aluminum over the buck. A leather covered mallet is better. Don't use a metal hammer, it will put dings in the metal that will have to be sanded out later.
Photo #7. After you bend the first few inches, screw a block of wood down to hold the end of the molding.