Stamping presses, or metalworking presses, uses mated die sets to form, shape, mark, or cut metal. Stamping is a universal metalworking term that encompasses applications such as punching & blanking, embossing, perforating, coining & minting, and even general forming.
Because hydraulic presses and servo-electric presses apply full tonnage throughout the stroke, they are more precise than mechanical presses, making them ideal for stamping of high-strength materials. Additionally, technologies like pre-fill valves and short-stroking can be used on hydraulic stamping presses to increase speed during the cycle. Precision and programmability are vital to creating the most efficient stamping operation and protecting your tooling and machinery from unnecessary wear.
Challenges of Stamping Presses
Three primary challenges of presses used for stamping are breakthrough shock, precision, and efficiency.
Breakthrough shock is a sudden release of force at the bottom of the stroke when the die breaks through the material. It is often characterized by a loud boom and/or vibration and can cause undue stress on the press and tooling. Beckwood’s Active Leveling Control technology counteracts the effects of breakthrough shock and springback to extend tool life and protect the press frame.
Precision and efficiency are often common challenges because stamping is primarily performed on mechanical presses, which only reach full tonnage at the bottom of the stroke. That’s why Beckwood offers stamping presses with servo-electric actuation. Servo-electric presses eliminate the crankshaft and flywheel and use electricity on-demand to create force at any point in the stroke. This added precision results in less scrap, energy cost savings, and higher quality parts,