Punching is one of the processes that a steel plate is subjected to before it can be riveted. Punching is a mechanical operation whereby enclosed contours are separated.
First we will look at which equipment and machinery the shipbuilder uses and in the second part we will explain the successive operations.
Tools, machinery and equipment for punching a steel plate
The holes from the template will be transferred onto this steel plate.
Chalk is pulverised in a jute sack.
The shipyard has a number of steel plates from which a "spits" is constructed. These plates act as a template for the plates which, after punching, undergo further processing before they can be riveted.
Successive operations for punching