Accession Number:

AD0600597

Title:

DEVELOPMENT OF ULTRASONIC WELDING WITH EMPHASIS ON PRODUCING HERMETIC SEALS.

Descriptive Note:

Final summary rept.,

Corporate Author:

AEROPROJECTS INC WEST CHESTER PA

Report Date:

1963-09-01

Pagination or Media Count:

106.0

Abstract:

Uniformly reproducible ultrasonic ring and continuous-seam welds of hermetic-seal quality were produced in several alloys of different gages and in various geometries. The delineation of problems relating to high power delivery in a torsional system indicates that specifications for a ring-type welding unit with a 5-kilowatt power-handling capacity, and capable of welding heavy-gage structural aluminum sheet can result. Continuous-seam welds at speeds in excess of one footminute were produced in 0.040- and 0.064inch 2014-T6 aluminum alloy, with and without inter-leaf, using a 5-kilowatt welding unit. Weld strengths achieved were up to 95 percent of parent metal strength. Modification can be made to the ultrasonic continuous-seam unit to handle up to 10 kilowatts in continuous operation, producing welds at reasonable rates in 0.080-inch sheet. Theoretical and experimental studies delineated impedance-matching requirements for optimum coupling of the ultrasonic energy to the weldment materials. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE