REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

PROFILING of MANDREL FOR GUN BARREL COLD HAMMERING

Srđan Živković,

Military Technical Institute, Belgrade, srdjan_vti@yahoo.com

Abstract: This paper explains complete procedure of profiling and quality control on mandrel for gun barrel cold hammering. These profiled mandrels are used on GFM machine for mass production of gun barrel. The mandrel is the most significant element for final quality of gun barrels. This is original developed technology method quite different from the method used in Zastava Arms factory. Paper explains mandrel profiling on CNC grinding machine with simultaneously controlled linear and rotary axis.  The developed method enables grinding mandrels, not only on machines specialized for that purpose.

Key words: gun barrel, cold hammering, grinding, quality assurance.