It relieves the stresses and the welded joints will be stronger.
Planishing operation in sheet metal.
Trade of sheet metalwork phase 2 module 6 unit 1 unit 1 12 h repeat operation f positioning each series of blows to overlap previous series.
Work inwards in series until middle of disc is reached removing wrinkles as each series is completed.
Tips and tricks on forming and shaping metal with a planishing hammer from eastwood.
Planishing is a technique used to curve and shape thin pieces of sheet metal.
Roller planishing is a simple inexpensive and skill free operation.
Welding after planishing ensures almost zero leakage from the joints.
The process involves tapping the metal with a specialized planishing hammer while it rests on a rounded stake in order to smooth defects and achieve the proper curve.
When the sheet metal edges are fed through two rollers a smooth bulge free surface is created.