FireHouse Magazine
http://cms.firehouse.com/content/magazine/...cle.jsp?id=2111
Subject: Subaru Ring-Shaped Reinforcement Frame
Topic: Design and construction of Subaru Ring-Shaped Reinforcement Frame
Objective: Develop an action plan for extrication tasks requiring removal of select model Subaru B-pillars

http://forums.firehouse.com/showpost.php?p...mp;postcount=12
Originally Posted by harley4227
Just what part of the vehicle are you cutting that requires 200,000+ PSI? Are we talking about automobiles or trains? I do not know of a vehicle maker that is building their cars out of 1-1/2 steel bar, so why are we using it as a test? If you need that much pressure you better re-think your extrication procedures and do some brush-up on your vehicle anatomy. You are talking about pressures that can shoot a bolt or fastener completely through somebody. When will the tool manufacturers jump up to the Million PSI tools? Do you realize that car crushers typically run 2-30 Ton (60,000 psi) rams? That's only 120,000 psi to completely crush the car and people are looking for cutters in excess of 200,000 psi to cut the car? I guess I just don't get it!

P.S. - If the 1-1/2" round bar was mild steel, it still may not cut thin guage Ultra-High Strength or Boron steel.

yugowego raspunde

The PSI of these tools are 5000 or 10,500, not 200,000+. The 200,000+ is the lbs of cutting force that a cutter is able to cut at. As far as why would you want to cut a piece of 1 1/2" round bar, ask Subaru why they have it going through the center of a B-post!