Metal stamping types

2024-08-02 13:06:27

The main techniques used in metal stamping include

Deep drawing

Progressive die stamping

Four slide stamping

Deep draw stamping: Deep draw stamping is one of the metal stamping techniques where the machine pulls the sheet metal blank into the die through the punch to create the desired shape. This technique is called ‘deep drawing’ as the drawn part’s depth exceeds its diameter. This technique of metal stamping is suitable for making components which require a range of diameters. As a cost effective technique compared to turning processes where more of raw materials are consumed, deep drawing finds wide applications including

Aircraft parts

Automotive components

Utensils and cookware

Electronic relays

Progressive die stamping- This is one of the most widely used processes of metal stamping. Many traditional metal stamping techniques could only perform a single action at a time which would mean a different tool is required for each operation to produce the finished product. This leads to long turnaround times as well as high labor costs. The process was also not suitable for creating tight tolerance or intricate parts.

Progressive die stamping involves passing the sheet metal into a series of workstations. Each die in the series can bend, cut, punch, emboss, coin, draw or shave the metal depending on the specifications. Based on the complexity of components, the sheet metal may require one step or may go through forty steps.

Progressive stamping yields many benefits including:

Faster production

Efficiency of processes

Cost-effectiveness of manufacturing

Simultaneous stamping shapes can be created

Quick set up process where one setup is needed to make completed parts

Complex geometry and intricate parts can be created using the die stations in progressive stamping technique.

Precision — Increased precision is guaranteed in this technique

High repeatability as the tools used in progressive stamping are hard-tooled and can bear the high volume runs without degrading, that in turn ensures high quality of finished products.

Progressive die stamping is suitable for a wide range of metals including

Aluminum

Copper

Inconel

Steel

Stainless steel

Noble metals

Brass

Coated Metals

Titanium

Four-Slide stamping- Fourslide stamping or multi-slide stamping is commonly used to make complex parts that have multiple twists or bends. The die features horizontal alignment as well as four different slides. This means that four tools are simultaneously used to shape the part.

Fourslide metal stamping confers several advantages as compared to traditional press stamping, making this technique an ideal choice for various applications. The main advantages of four slide stamping include more flexibility in design changes as well as versatility to create complex parts.

Four different tools can be attached to the four slides to simultaneously achieve multiple bends. The shaft in each tool bends the part quickly as the material is fed into the tool.

Transfer die stamping- This is similar to progressive die stamping except that the material to be shaped is transferred to stamping stations with conveyor belts or other mechanical transport systems.