Applications : Stamping
Several types of presses, mechanical, pneumatic or hydropneumatic, can be used to stamp parts in small, medium or large series. Stamping is a technique used in a wide variety of applications where many parameters are involved.
As with our presses for assembly, stamping, bending and riveting, EMG designs presses that can be modified to adapt to the different types of production as well as to the safety and comfort of the operator at his workstation by taking into account each of the specific parameters of its customers.
Cold or hot stamping with mechanical press
Cold or hot mechanical stamping is a process for forming parts that requires machines such as a mechanical press and suitable tools (ies, punches...). The principle is based on the plastic deformation of the material (usually a metal), which consists of stretching or shrinking the sheet to obtain the desired shape.
A distinction is made between cold stamping, which is carried out at room temperature, and hot stamping, which is carried out with a part heated to about 800°C for mild steel.
Cold stamping is the most widely used technique for large or very large production runs for parts that simply require a powerful one-sided action. Indeed, the cost price of the operation performed is extremely low considering the very large number of parts produced associated with a very short manufacturing time. The implementation of this type of tool is quite fast and allows the production of parts as soon as the tool is installed and adjusted on the press table.
Cold stamping can be done with a pneumatic press (with pressure up to 6 tons), or a hydropneumatic press (with pressure up to 100 tons). However, for large quantities, mechanical presses are more suitable. Their striking power and their speed of execution allow them to reach a much higher productivity than pneumatic and hydropneumatic presses.
The adjustment of many parameters on the press allows to adapt the tools (punches, dies...) necessary to the production process as well as to obtain the exact pressure which will limit the cases of rupture on all or part of the surface of the stamped parts.
The depth of the gooseneck, the headroom, the lowering speed and the stroke are important parameters for which we can provide you with details when you ask yourself which press to choose for stamping parts made of different materials with varying strength and elasticity.
We adapt our machine tools so that your stamped objects will take the desired shape, thickness and diameter with a minimum of scrap. Easy to operate, our presses are robust and guarantee impeccable production, even for large-scale production.
EMG mechanical presses can be equipped, at the customer's request and according to specifications, with any special adaptations required to optimize production:
Some examples of possible adaptations on EMG presses:
We can adapt our presses to your activity by making the stamping process as efficient as possible while providing maximum comfort to the operator at his workstation:
- A lower ejection system (pneumatic or mechanical) to release the part or the part that has just been manufactured.
- A system for lubricating production at each press stroke.
- A blowing system in the tool.
- A material transport system before and after cutting.
- A cutting system for scrap at the exit of the tool.
- An automatic screen system that physically protects the operator during typing.
- An evacuation control of the manufactured parts or the produced scrap.
- Specially designed protections for the geometry of the manufactured parts.
- Intelligent protections that guarantee the safety of operators and automate the departure of the press.
- The possibility of varying the speed of the slide's movement during striking.
- The adaptation of a PLC that will be able to manage the press according to its environment in a complex production line.