Air Hammer Presentation

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Air Hammer Presentation

• Joe College

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Whats an air hammer?

• Tool used for chipping, cutting, piercing.
• Similar to a jackhammer

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Hows it work?

• Only Two Moving Parts
• Valve Shifts Position to allow air flow
• Piston slams into chisel

Internal Assembly
Internal Piston
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Whats the History?

• Charles Brady King (Detroit, 1894) Patent No.
  513,941
• Over 350 Patents in Current Classification

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Speed Forces

• Maximum Speed Occurs when volume is smallest
  and Pressure is greatest. Approx. 63.33 Blows Per
  Second.
• Maximum Force Occurs when volume is smallest
  and Pressure is greatest. Approx. 17.54 N

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Whered you get that?

• Force is a differentiable function of the Volume.
• F decreases as the Volume increases.
• F Cexp(-V/(Pk)), where F is Force at Volume
  V, C is the Force at min Volume, P is the
  Pressure, and k is the Gas Constant

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Air Consumption

• Air Consumption is limited by Output
• Using the Handouts in class, Sonic Rate is
  computed at 6.82 CFM
• Differences occur due to ideal situations

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So, What did I learn?

• Flow Rates/ Fluid Dynamics
• Relationship between Forces and Pressure
• Modeling Differential Equations
• All-Nighters Can Be Fun!

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Sources

• The Google Calculator (http//www.google.com)
  Best Website Ever
• US Patent Office (http//www.uspto.gov)
• Project, Physics, and Calculus Classes.