Accession Number:

AD0488312

Title:

LARGE MOTOR CASE TECHNOLOGY EVALUATION

Descriptive Note:

Corporate Author:

BOEING AEROSPACE CO SEATTLE WA

Personal Author(s):

Report Date:

1966-06-01

Pagination or Media Count:

20.0

Abstract:

This work has proceeded with emphasis placed on development of 9Ni alloy test data required to help confirm results of the earlier statistical efforts. This resulted in the fabrication and testing of one 9Ni subsize motor case and the testing of several welded fracture and tensile specimens. The 9Ni weldment specimen tests consisted of limited tensile, edge notched bend, and surface flawed specimens taken from panels 0.80-inch and 0.50-inch thick. Compositions of base metal and weldwire are shown. Plates were heat treated prior to welding, and retempered after welding. Weld settings and edge preparation utilized were dictated by the results of the earlier statistical weld development efforts, and were expected to result in near optimum characteristics of properties and quality. Weld quality, as determined by visual, penetrant, and radiographic inspection, was acceptable no cracks were observed, some scattered porosity up to 0.06 diameter was apparent.

Subject Categories:

  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE