Evaluation of Ti-3Al-2.5V Titanium Alloy Hydraulic Tubing PDF Download
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Author: L. R. Sanders
Publisher:
ISBN:
Category :
Languages : en
Pages : 99
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Book Description
The program determined the effect of several Ti-3Al-2.5V hydraulic tubing manufacturing techniques and common tubing defects on rotary flexure fatigue life of the tubing. Test results showed cold worked and stress relieved 105 ksi minimum tensile yield strength tubing and annealed 70 ksi minimum tensile yield strength tubing have approximately the same fatigue life. It was shown that belt sanding the tubing outer surface and then pickling both the inside and outside surfaces was the best surface preparation method evaluated. Grit blasting of the tubing inner surface or glass bead peening of the tubing outer surface offered no improvement in fatigue life and in some cases actually reduced fatigue life. The balance of the program was devoted to determining the effect of tubing imperfections. (Modified author abstract).
Author: L. R. Sanders
Publisher:
ISBN:
Category :
Languages : en
Pages : 99
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Book Description
The program determined the effect of several Ti-3Al-2.5V hydraulic tubing manufacturing techniques and common tubing defects on rotary flexure fatigue life of the tubing. Test results showed cold worked and stress relieved 105 ksi minimum tensile yield strength tubing and annealed 70 ksi minimum tensile yield strength tubing have approximately the same fatigue life. It was shown that belt sanding the tubing outer surface and then pickling both the inside and outside surfaces was the best surface preparation method evaluated. Grit blasting of the tubing inner surface or glass bead peening of the tubing outer surface offered no improvement in fatigue life and in some cases actually reduced fatigue life. The balance of the program was devoted to determining the effect of tubing imperfections. (Modified author abstract).
Author: L. R. Sanders
Publisher:
ISBN:
Category :
Languages : en
Pages : 23
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Book Description
The objective of the program was to evaluate hydrostatically extruded Ti-3Al-2.5V hydraulic tubing. However, 'shear-spun' tubing had to be substituted for evaluation. Tests conducted on the shear-spun tubing included rotary flexure and impulse fatigue, flaring, bending, flattening, and tensile strength. The shear-spun tubing was found to be inferior to conventionally produced tubing because of poor surface finish. (Author).
Author: G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This SAE Aerospace Standard (AS) shall be used in conjunction with AMS 4946 to provide requirements for qualification testing and for Qualified Products Listing (QPL) and Qualified Manufacturer Listing (QML) for Ti-3Al-2.5V cold worked and stress relieved hydraulic system tubing. The basic tubing shall comply with the requirements of AMS 4946. AS5620A has been reaffirmed to comply with the SAE five-year review policy.
Author: John M. Olexa
Publisher:
ISBN:
Category :
Languages : en
Pages : 74
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Book Description
Manufacturing procedures were developed for producing high-quality tubing of the metastable beta titanium alloy Ti-3Al-8V-6Cr-4Mo-4Zr. In excess of 500 feet of tubing was produced and evaluated in each of the three sizes at 0.75-, 0.54- and 0.375-inch diameter. The Ti-3Al-8V-6Cr-4Mo-4Zr alloy was found to be a highly producible tubing material with mechanical properties better than those of other titanium tubing alloys. The producibility of Ti-38-6-44 is enhanced most significantly by proper thermal treatments at initial and intermediate tube sizes, proper reduction sequences and precise tooling arrangements. Ti-38-6-44 was found to offer a wide range of strength levels, as tubing, with excellent ductility. Yield strengths were measured from 120 to more than 200 ksi. Aged to 180 ksi yield strength, Ti-38-6-44 has about 14 percent elongation and a strength-to-weight ratio of 1,035,000 inches which is considerably greater than that of other hydraulic tubing alloys. (Author).
Author: AMS G Titanium and Refractory Metals Committee
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This specification covers a titanium alloy in the form of seamless tubing. AMS4945G results from a Five-Year Review and update of this specification that revises composition analytical methods (3.1) and adds no unauthorized exceptions (3.7), and revises reporting (4.5.2) and marking (5.1).
Author: AMS G Titanium and Refractory Metals Committee
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This specification covers a titanium alloy in the form of seamless tubing. AMS 4946B is a review and update including a revision to the upper limit for Contractile Strain Ratio.
Author: G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This Aerospace Standard (AS) is to be used as a supplement to SAE AS7112. In addition to the requirements specified in AS7112, the requirements specified herein shall apply to suppliers seeking Nadcap Fluid System accreditation for manufacturing titanium 3AI-2.5V alloy, seamless hydraulic tubing.The corresponding PRI Audit Criteria (AC) is to be applied to ensure the tubing is manufactured to the applicable specification(s) and standard(s). AS7112/6 has been reaffirmed to comply with the SAE five-year review policy.
Author: G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This Aerospace Standard shall be used in conjunction with AMS 4946 to provide requirements for qualification testing and for Qualified Products Listing (QPL) and Qualified Manufacturer Listing (QML) for Ti-3Al-2.5V cold worked and stress relieved hydraulic system tubing. The basic tubing shall comply with the requirements of AMS 4946.
Author: G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This SAE Aerospace Standard (AS) shall be used in conjunction with AMS4946 to provide requirements for qualification testing and for qualified products listing (QPL) and qualified manufacturer listing (QML) for Ti-3Al-2.5V cold worked and stress relieved hydraulic system tubing. The basic tubing shall comply with the requirements of AMS4946. Define pressure requirements for S-N testing for Type I tubing and revise cycle requirement to reflect the new pressure values. Revise the quantity of tubes that are S-N tested at the specified pressure values. Delete flexure test requirement.
Author: G. W. Harruff
Publisher:
ISBN:
Category :
Languages : en
Pages : 150
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Book Description
This report contains the fatigue, metallurgical, and bend test results on titanium alloy 3Al-2.5V cold worked and stress relieved tubing procured during the prototype supersonic transport test program, and the new texture-controlled tubing. The tubing procured for the prototype program was tested with three different inside-diameter finishes developed by Boeing, Grumman Aerospace, and McDonnell-Douglas. The texture-controlled tubing was developed during this program, and its requirements are defined in the new Boeing-proposed specification, which is included in this report. (Author).
