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Title: Free-piston cutting machine

Patent ·
OSTI ID:873273

A cutting machine includes a gun barrel for receiving a projectile. A compression tube is disposed in flow communication with the barrel and includes a piston therein. A reservoir is disposed in flow communication with the tube and receives a first gas under pressure. A second gas fills the compression tube on a front face of the piston. And, the pressurized first gas is discharged into the tube on a back face of the piston to accelerate the piston through the tube for compressing the second gas, and in turn launching the projectile through the barrel to impact a workpiece.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
DOE Contract Number:
AC02-98CH10886
Assignee:
Brookhaven Science Associates (Upton, NY)
Patent Number(s):
US 6125834
OSTI ID:
873273
Country of Publication:
United States
Language:
English