What are the five ways to punch holes in iron plates?

There are five ways to punch holes in the iron plate:

Manual punching: it is completed by manual punching pliers, including handle 1, handle 2, punch holder and hole die holder, and there is a four-bar mechanism between them.

Mechanical punching: Punching is a forming method that applies external force to plates, strips, pipes and profiles by means of presses and dies, so that they are plastically deformed or separated, thus obtaining workpieces (stamping parts) with required shapes and sizes.

Manual drilling: drilling is a basic method of hole processing, and drilling is usually carried out on drilling machine and lathe, or on boring machine or milling machine.

Automatic drilling of NC machine tool: NC machine tool is the abbreviation of NC machine tool, which is an automatic machine tool with program control system.

Gas cutting: Through the experimental comparison and theoretical discussion of propane gas, propylene gas and acetylene gas, it is expounded that the new propane gas for cutting has the characteristics of high efficiency, low cost, safety and environmental protection.