Stampings
Stamping is a process, at which articles are formed out of a flat material without swarf. Nearly every shape can be manufactured dimensionally accurate.
Complex articles are manufactured in several steps, partially or completely automatic.
Frequently stamping is used at sheet metal forming. Big quantities of consistent shape can be manufactured fast and without loss in quality.
Typical examples for stampings are clips, washers and fasteners.
Stampings are commonly used in following industries:
• Automobile and machine construction
• Electricity
• Fixing systems
• Building industry
In which way are stampings manufactured?
Usually CNC-machines are used to manufacture stampings. These do the forming process fully automatic and in high speed.
The flat material is placed between two tools of a stamping press. The upper tool moves down through a die surface (lower tool) and cuts the material out. The required shape is realized by only one throw.
As an alternative to CNC-controlled machines there are machine tools. The tools to form the raw material are moved by hydraulic or just manually.
For complex contours generally CNC-machines or combined laser-stamping-machines are used. This allows even more details to be done in a single operation.
Which common surface- and heat treatment-processes are existing for stampings?
Diverse alternatives are available. Generally, there is a cleaning procedure after the stamping process, for example by ultrasonic-cleaning or just cleaning with water.
Moreover, with vibratory grinding sharp edges are removed.
A surface treatment leads to a better protection of the stamping parts. The parts can be galvanized, chromated, painted or silvered, for example.
Which treatment or process is favorable for you is depending on your requirements. For instance, a surface refinement is always recommendable, if you have visible parts or if you use articles in special environment, for example at sea.
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