Spring drop hammer
The spring monkey (also Federhammer ) was a technical innovation of the late 19th century, he replaced the former for forging common tail hammer from. The main difference to the medieval simple tail and drop hammers results from the dynamically reinforced impact behavior by tensioning the springs due to the inertia of the hammer bear (movable upper part with die holder). This hammer shape was made ready for series production around 1900 by the Austrian Schmidtstahlwerke AG with several patent applications and sold worldwide as the “Ajax patent leaf spring hammer ”. As a result, car springs ( leaf springs ) were also used later - in times of need . Due to the robust and technically simple design at high reduction rates of this hammer is still in today forging and ironwork companies to find.
At the same time, the later developed air hammer , in addition to forging presses , has become widely accepted thanks to better controllability of the impact energy ( impact force ) and the speed of the bear, despite the higher acquisition costs.
See also
swell
- Technical documents on historical forge hammers can be viewed in the Vienna Technical Museum .
Web links
Individual evidence
- ↑ Spring hammers. Angele website (mechanical engineering company for forging technology), accessed on August 22, 2013.