Study of Brass Obturator Design for Combustible Cartridge Case for 105mm Tank Gun Ammunition

R.K. Syal; P.S. Narr

doi:10.14429/dsj.47.4019

R.K. Syal High Energy Materials Research Laboratory, Pune.
P.S. Narr High Energy Materials Research Laboratory, Pune.

DOI: https://doi.org/10.14429/dsj.47.4019

Keywords: High explosive squash heat (HESH)

Abstract

Brass cartridge case provides rearward obturation in the tank gun ammunition where the gun systedt has a sliding breech mechanism. In the case of semi-combustible cartridge case (SCCC) ammunition, obturation is provided by a smal1 metal stub. The mechanism of obturation and obturator design for kinetic energy and high explosive squash heat (HESH), SCCC ammunition of 105mm tank gun have been studied. The dynamic firing results for SCCC ammunition for 105 mm tank gun reveal height 115 mm provides perfect obturation. The ballistic performance of SCCC ammunition is comparable with that of the brass-cartridged round in the pressure range 150-450 MPa.

Author Biographies

R.K. Syal, High Energy Materials Research Laboratory, Pune.

Shrl RK Syal obtained his BE (Chemical Engineering) from Panjab University, Chandigarh, in 1969. At present, he is working as Scientist F at the High Energy Materials Research Laboratory (HEMRL), Pune. The areas of his work include transfer of technology and process design and development of high energy materials. Hel is the recipient of DRDO Technological Award in recognition of his outstanding contribution .towards design and development of combustible cartridge cases and semi-combustible primer for MBT Arjun ammunition. He has published eight research Rapers, 37 technical reports and two patents.

P.S. Narr, High Energy Materials Research Laboratory, Pune.

Shri PS Narr, is presently working at HEMRL, Pune. The areas of his work include the development of combustible cartridge case system for different gun ammunition.