Dynapak 1-1/2 Million Foot Pound Forging Machine
Abstract
The HERF press designed is a pneumatic-mechanical press of true counter-blow design. The machine incorporates mechanical, hydraulic and electrical systems. Two integral opposing rams, weighing 73,000 lbs. each, and having a maximum impact velocity of 630 in/sec create the rated energy of 1,500, 000 foot pounds. The two rams are proportioned for extreme stiffness in order to support large tooling requirements. Complete tooling interchangeability between the upper and lower rams is provided. The hydraulic portion of the pneumatic high velocity machine restores the energy released by the machine. The hydraulic system is composed of two 100 HP motors driving four 35 GPM pumps which provide fluid for a high performance accumulator system. This system is capable of sustaining three successive blows of the rams within several seconds. All functions are interlocked to provide maximum smoothness of hydraulic fluid delivery with minimum inertia shock. The electrical system consists of conventional electrical circuitry monitored and controlled energy output of 1, 500,000 ft. lbs. with the capability of utilizing this energy in multiple blows. The counter-blow principle and identical rams provides versatility in tooling capabilities. The composite design of the machine emphasizes simplicity, flexibility, safety, minimum maintenance requirements and increased production capability.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1969
- Accession Number
- AD0864988
Entities
People
- James Koskoris
- Milton Chanin
Organizations
- General Dynamics