Punching is a mechanical process in which aluminium sheets are formed into specific shapes using tools. It is often used for the mass production of precise metal parts.

Punching is particularly efficient for large quantities and offers consistent, precise quality. It is faster than injection moulding, for example, and does not cause any material changes due to heat, as can be the case with laser cutting.

In addition to aluminium, other metals such as steel, copper and brass can also be punched. Aluminium sheets can be processed in thicknesses from 0.2 mm to several millimetres.

Punching is particularly economical for large quantities, but can also be used for small series of a few thousand to millions of parts per year.

The tolerances depend on various factors, such as the material, the tool precision and the machine parameters. The tolerances are usually between ±0.05 mm and ±0.3 mm.

Various machines are used, including hydraulic presses and eccentric presses with press forces of 50 to 400 tonnes. These make it possible to stamp both small and very large parts.

The costs depend on the complexity of the mould, the material quality, the machine precision and the number of pieces. Larger quantities generally lead to lower unit costs.

In addition to stamping, many contract service providers also offer additional services, such as the assembly of components, surface treatments (e.g. galvanising, hardening), packaging and shipping of the finished parts.

The tool geometry is developed based on the desired shape, the material and the punching parameters. CAD software is often used to optimise the design and simulation of the tool.

As an experienced and reputable contract service provider, we work according to strict quality standards, such as DIN ISO 9001:2015, which ensures that the parts produced are of consistently high quality and fulfil customer requirements.