PUNCHING AND DEEP DRAWING

Punching

The CNC punching machines are mainly used for making holes of different sizes and shapes in sheet metal. The main part of the CNC punch press is its head, which works under pressure to make a hole in sheet metal.

How does punching work?

Fur punching, computer numerically controlled (CNC) presses are used. The programming of the press makes the blade move along the x and y axis to the desired position and punches at a specific place. The general processing range for most CNC punch presses is 0.5 mm to 6.0 mm thick for many materials including stainless steel aluminium and iron.

What are the advantages of punching?

The CNC punching presses can make holes of different shapes, including 3D holes, such as dimples or wells and holes for screws. The CNC machines can also make holes with a thread or shear edges.

Deep drawing with hydraulic presses

Deep drawing is a process of transforming flat blanks from sheet metal (blanks or blades) in the hollow body (pots, casings, coats) with material retention. The material must have good forming properties, even thickness and be isotropic (i.e. have the same properties in all direction).

The materials most suitable for deep drawing are cold and warm rolled sheet steel with a carbon content of 0.08 to 0.12 per cent, stainless sheet steel, galvanized sheet steel, brass, aluminium, zinc, nickel and precious metals.