Download or read book The Effect of Preheating and Postheating on the Quality of Spot Welds in Aluminum Alloys written by Wendell Frederick Hess and published by . This book was released on 1947 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of tests show that a slowly rising condenser-discharge preheat current with a rapidly rising welding current afford no less expulsion than a rapidly rising welding current alone, and was inferior to a slowly rising welding current alone. In one case using slowly rising current for preheating and welding proved beneficial although generally, utilizing a raised electrode welding force to decrease expulsion was more practicable. Postheating had no effect on sheart strength until the current sufficient to remelt the welds, which greatly increased the weld diameter and shear strength.

Download or read book Compressive Strength of 24S T Aluminum alloy Flat Panels with Longitudinal Formed Hat section Stiffeners Having a Ratio of Stiffener Thickness to Skin Thickness Equal to 1 00 written by William A. Hickman and published by . This book was released on 1947 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are present for part of a test program on 24S-T aluminum-alloy flat compression panels with hat-section stiffeners. The results show the effect of the relative dimensions of a panel on the buckling stress and average stress at maximum load. Comparative envelope curves are presented to provide some indication of the relative structural efficiencies of hat- and Z-stiffened panels having a ratio of stiffener thicknews to skin thickness of one.

Download or read book Technical Note written by and published by . This book was released on 1947 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Note National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of NACA Technical Publications written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1949 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Selected Listing of NASA Scientific and Technical Reports for written by and published by . This book was released on 1949 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report written by and published by . This book was released on 1945 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1948 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report of the National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1947 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes the Committee's Technical reports no. 1-1058, reprinted in v. 1-37.

Download or read book Mechanical and Corrosion Tests of Spot welded Aluminum Alloys written by Fred M. Reinhart and published by . This book was released on 1951 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion behaviro of spot-welded aluminum-alloy (alclad 24S-T3, 24S-T3, alclade XB75S-T6, XB75S-T6, and R-301-T6) panels of varying weld quality was determined. Tidewater and weather exposure tests were made and the results were evaluated largely in terms of distribution of corrosion products and effects on weld strength. Metallographic examinations of several of the alloys were also made to determine the extent and type of corrosion attack associated with various welding and exposure conditions.

Download or read book List of Technical Notes 1947 1953 written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1954 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book United States Government Publications Monthly Catalog written by and published by . This book was released on 1948 with total page 1850 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Engineering Index Annual written by and published by . This book was released on 1948 with total page 1610 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Contractor Report written by and published by . This book was released on 1969 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of NACA and NASA Published Information of Pertinence in the Design of Light Aircraft Structures by Frederick O Smetana written by Frederick O. Smetana and published by . This book was released on 1970 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of NACA and NASA Published Information of Pertinence in the Design of Light Aircraft Volume 1 Structures written by Frederick O. Smetana and published by . This book was released on 1970 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nonferrous Physical Metallurgy written by Robert John Raudebaugh and published by . This book was released on 1952 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: