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Thin Film Tensile Test Fixture

IP.com Disclosure Number: IPCOM000076705D
Original Publication Date: 1972-Apr-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Krall, B: AUTHOR [+2]

Abstract

Thin-film metals are difficult to tensile test in large tensile testors because of problems encountered in grasping very thin metals. The thin-film fixture disclosed is particularly adapted for specimens which range in thickness from 0.0003 to 0.015 inch.

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Thin Film Tensile Test Fixture

Thin-film metals are difficult to tensile test in large tensile testors because of problems encountered in grasping very thin metals. The thin-film fixture disclosed is particularly adapted for specimens which range in thickness from
0.0003 to 0.015 inch.

Referring to the drawing, the specimen 10, which is shaped in the form of the capital letter "I", is inserted into the fixture 15 by a spring loaded clamp 11. The fixture is then tightened on the specimen 10 and the clamp 11 removed. The fixture is then connected to a tensile testor and the specimen is placed in tension until rupture, permitting both elongation and ultimate strength to be recorded. To this end, the clamp 11 includes a pair of jaws having both upper and lower bifurcated legs 12 and 13 which are utilized to grasp, intermediate the jaws of the clamp, the enlarged portions 10A and 10B, respectively, of the specimen 10. The specimen is then inserted into upper and lower blocks 16 and 17 which contain inwardly protecting spaced apart keyways 18 and 19; 20 and 21, respectively, in the upper and lower blocks. The upper block 16 includes a pair of outboard rails 22 and 23 which fit with slots in the sidewall 24 and 25, respectively, of the fixture 15. The lower block 17, however, is fixed to the side walls 24 and 25. Additionally, the central key 19 of both the upper and lower block 16 and 17 is moveable in and out by tightening screws 26 and 27. Thus upon insertion of the...