DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0837470
Title:
ELECTRO-SPARK EXTRUDING.
Corporate Author:
FAIRCHILD HILLER CORP FARMINGDALE NY REPUBLIC AVIATION DIV
Report Date:
1968-06-01
Abstract:
This project was undertaken with the purpose of developing a method to cold extrude metals. Advances in electrical discharge methods were proposed electrohydraulic effect to generate short-time pressures that could make cold extrusion possible. A container was specially designed for transient and hydrostatic loads. The liquid medium used for the transmission of the hydrostatic pressure was also used to transmit the dynamic pressure using a shock pressure wave generated by the electrical discharge. A new theoretical approach was derived for pulse extrusion. The results to the analysis agree with results from hydrostatic extrusions. Extrusion trials with 1100 F aluminum showed that pulse extrusion was in principle possible. A failure due to stress corrosion prevented any further tests. Details of the failure, such as fractographic study and fracture toughness tests, are included in the report. Author
Descriptive Note:
Final rept.,
Pages:
0133
Contract Number:
AF 33(657)-11265
File Size:
0.00MB
