It relieves the stresses and the welded joints will be stronger.
Planishing operation in sheet metal.
After approximately forming a metal object by stretching with techniques such as sinking and raising and then shaping and smoothing an object metal workers use planishing for surface finishing.
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.
You ll also see the tear drop mallets and panel beater bag in action.
Work inwards in series until middle of disc is reached removing wrinkles as each series is completed.
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.
When the sheet metal edges are fed through two rollers a smooth bulge free surface is created.
Roller planishing is a simple inexpensive and skill free operation.
Planishing is a technique used to curve and shape thin pieces of sheet metal.