Výsledky vyhledávání - "H. R. Letner"

AN INSTRUMENT FOR STUDYING FINE TEXTURE OF CERAMIC AND OTHER SURFACES*

Autor: F. W. Adams, Lee Devol, H. R. Letner

Publikováno v: Journal of the American Ceramic Society. 24:229-234

The fine texture of various hard surfaces can be measured easily by using a tracing point and an optical lever in a profilograph of new design. Variations in the surface of 0.000001 in. may be detected and topographic or relief maps can be prepared a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2d27b91bfb5eb6a4d3ced52a6302ac69
https://doi.org/10.1111/j.1151-2916.1941.tb14851.x

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Influence of Grinding Fluids Upon Residual Stresses in Hardened Steel

Autor: H. R. Letner

Publikováno v: Journal of Fluids Engineering. 79:149-152

Grinding fluids perform functions which might be expected to affect the residual surface stresses resulting from a grinding operation. Stresses were analyzed in bars of hardened ball-bearing steel, surface ground in the presence of thirteen different

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::892fa302984b21d880a65e9476cec332
https://doi.org/10.1115/1.4012947

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Grinding and Lapping Stresses in Manganese Oil-Hardening Tool Steel

Autor: H. R. Letner, H. J. Snyder

Publikováno v: Journal of Fluids Engineering. 75:873-880

The biaxial stress distributions resulting from grinding and lapping annealed manganese oil-hardening tool steel were determined by sectioning the stressed surface layers and following the changes in curvature of the test specimens by optical interfe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::25334a0b296b5e6ae40f034deb895340
https://doi.org/10.1115/1.4015466

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Residual Grinding Stresses in Hardened Steel

Autor: H. R. Letner

Publikováno v: Journal of Fluids Engineering. 77:1089-1095

Residual stresses resulting from surface grinding a hardened ball-bearing-type steel under closely controlled conditions were measured by the deflection method and the effects of wheel grade, unit downfeed, and grinding fluid upon the stresses genera

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2789fc579fe41bcb31cc1a284da201ce
https://doi.org/10.1115/1.4014601

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An Instrument for Studying the Topographies of Fine Textured Surfaces

Autor: H. R. Letner, Lee Devol, F. W. Adams

Publikováno v: Review of Scientific Instruments. 12:409-411

A profilograph, using a tracing point and optical lever system, makes profiles of fine textured surfaces, magnifying the elevations and depressions by as much as 6000×. With this instrument it is possible to detect surface variations as small as 0.0

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c9cff84f9229495a61341de75b3f19b6
https://doi.org/10.1063/1.1769912

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