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Chapter 7

Chapter 7. Power Presses. Stamping. One example of a product produced on a power press. http://www.advproducts.com/image/stamping/2-600.jpg. http://en.wikipedia.org/wiki/Progressive_stamping_die. Gap-Frame Presses. Also called “C-frame” presses OBI – Open-back inclinable

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Chapter 7

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  1. Chapter 7 Power Presses

  2. Stamping One example of a product produced on a power press http://www.advproducts.com/image/stamping/2-600.jpg

  3. http://en.wikipedia.org/wiki/Progressive_stamping_die

  4. Gap-Frame Presses • Also called “C-frame” presses • OBI – Open-back inclinable • OBS – Open-back stationary

  5. Straight-Side Presses • Typically used for higher production volumes with higher precision required. http://www.toolingsystemsgroup.com/ats/images/ATS_open.jpg

  6. Mechanical Capacities to 6,000 tons Force varies throughout the stroke Limited/difficult overload protection Hydraulic 50,000 + ton capacities Large force available at the top of the stroke Overload protection Mechanical Vs. Hydraulic

  7. https://www.getransportation.com/general/locomotives/specsheets.asphttps://www.getransportation.com/general/locomotives/specsheets.asp

  8. 50,000 tons? The Loewy 50,000 ton press during construction. One of eighteen columnar plates (circa 1954).

  9. Rigidity

  10. Double Action Press Blankholder Slide Draw Slide

  11. Die Cushions(pressure pads) • Pneumatic or Hydraulic • Apply pressure to flat blanks for drawing • Serve as liftout or knockout devices http://www.daytondiecushions.com/Flash2.htm

  12. Other Press Types • Hydraulic Forming • Multiple-Slide • Turret Punch

  13. Hydraulic Forming Machines and Dies • Pressures range between 5,000 and 45,000 psi

  14. Multiple-Slide Forming http://www.franklinfastener.com/images/fourslide004.jpg

  15. Turret Punches • Punch/Laser Machine

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