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Producing with a Trumpf Punch Press. Mike Miller Emech 210 4-10-02. Specifications of a Trumpf Model TRUMATIC 500 ROTATION Punch Press. 220 kN Punching force (49,500 lb) Handles up to 8mm thick sheets (5/16 in) Linear tool magazine that holds 18 tools 121.5 x 65 in working range

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Producing with a trumpf punch press l.jpg

Producing with a Trumpf Punch Press

Mike Miller

Emech 210

4-10-02


Specifications of a trumpf model trumatic 500 rotation punch press l.jpg
Specifications of a Trumpf Model TRUMATIC 500 ROTATION Punch Press

  • 220 kN Punching force (49,500 lb)

  • Handles up to 8mm thick sheets (5/16 in)

  • Linear tool magazine that holds 18 tools

  • 121.5 x 65 in working range

  • 60 in/sec X-axis travel speed, 40 in/sec Y-axis travel speed

  • 900 hits per minute high speed punching

  • Sorted removal of finished parts

  • Light barrier safety fence

    Info from www.trumpf.com




How it works l.jpg
How it Works Press

  • The hydraulic head rapidly forces the inserted punch through the piece.

  • The die of just over the size of the punch prevents the metal from moving or bending.


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Strength of Materials Reasoning Press

  • Applied shear force over area exceeds the materials Ultimate shear strength.

  • Ex. 1 in. Circular Punch

    τ = V / A where V = shear force and A = thickness times circumference

    τ = 49.5 kip / ( 5/16 * 2π(0.5)) in2

    τ = 50.4 ksi


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Strength of Materials Reasoning Press

  • The ultimate shear strength for 2014-T6 Aluminum is 42 ksi while it is only 27 ksi for 6061–T6 Aluminum

  • The applied shear stress has obviously exceeded the ultimate shear strength, causing the piece to break

  • Smaller punches apply larger stresses because of the decreased area, this allows for slightly thicker plates to be used if necessary

  • Punches over 1 in. are angled on the bottom, also reducing the area the force is acting over


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Punching Possibilities Press

Factory Example Piece


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Punching Possibilities Press

Fancy Range Hoods

Refrigerated Truck Parts

Various Airplane Parts


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For more information: Press

www.trumpf.com