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Landing gear

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Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005739
EISBN: 978-1-62708-171-9
... metals in airframe structures. This article summarizes the results of materials and component testing. It also presents a cost/benefit analysis of HVOF WC/17Co and WC/10Co4Cr coatings on aircraft landing gear components. aircraft landing gears corrosion cost assessment fatigue hard chrome...
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Published: 01 January 2005
Fig. 8 (a) Failed steel landing gear cylinder and (b) aluminum alloy landing gear cylinder of composite design. Both were forged with a solid core, straight parting line, and flash; fracture failures occurred in both in the plane of the flash line. Dimensions given in inches More
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Published: 01 January 2002
Fig. 21 Landing-gear spring, 6150 steel, that broke during a hard landing. (a) Configuration and dimensions (given in inches) of the spring. (b) Fractograph showing fatigue crack that initiated the brittle fracture. 7× More
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Published: 30 August 2021
Fig. 35 Landing-gear spring, 6150 steel, that broke during a hard landing. (a) Configuration and dimensions (given in inches) of the spring. (b) Fractograph showing fatigue crack that initiated the brittle fracture; magnification, 7× More
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Published: 01 January 2006
Fig. 8 Corrosion of the 767 steel main landing gear aft trunnion. Insert shows location. FWD, forward; INBD, inboard More
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Published: 01 December 1998
Fig. 3 Aluminum alloy 7079-T6 aircraft landing-gear actuator beam fractured because of stress-corrosion cracking (a) Portion of a broken aircraft landing-gear actuator beam of aluminum alloy 7079-T6, showing stress-corrosion fractures (at arrow). See also (b) to (f). Photograph. 1 6 More
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Published: 01 January 2002
Fig. 4 Failed nose landing gear socket assembly due to LMIE. (a) Overall view of the air-melted 4330 steel landing gear axle socket. Arrow A indicates the fractured lug; arrow B, the bent but unfailed lug. Arrow C indicates the annealed A-286 steel interference-fit plug containing the grease More
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Published: 01 January 1987
Fig. 31 17-4 PH stainless steel main landing-gear deflection yoke that failed because of intergranular SCC. (a) Macrograph of fracture surface. (b) Higher-magnification view of the boxed area in (a) showing area of intergranular attack. (W.L. Jensen, Lockheed Georgia Company) More
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Published: 01 January 1993
Fig. 17 Oxyacetylene welding of aircraft landing gear support. Use of OAW reduced HAZ hardness and eliminated need for postweld tempering. Measurements shown in schematic are in inches. Welding rod  Type RG60  Diameter, mm (in.) 2.4 ( 3 32 ) Torch type Injector Tip More
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Published: 01 January 1987
Fig. 968 Pieces of the hub of a forged aircraft main-landing-gear wheel half, which broke by fatigue. The material is aluminum alloy 2014-T6. Tensile specimens from elsewhere in the wheel had tensile strength of 493.7 MPa (71.6 ksi) and 8.9% elongation in the transverse direction, and tensile More
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Published: 01 January 1987
Fig. 1004 An aluminum alloy 7075-T736 aircraft main landing gear forging, similar to that described in Fig. 1002 and 1003 , which was shot peened on its inner-diameter surface to enhance fatigue resistance. The shot-peened part withstood cycles far beyond the number required for acceptance More
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Published: 01 January 1987
Fig. 1077 Portion of a broken aircraft landing-gear actuator beam of Al alloy 7079-T6, showing stress-corrosion fractures (at arrow). 0.17× More
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Published: 01 January 2005
Fig. 7 Boeing 757 main landing gear beam forged of alloy Ti-6Al-4V using three available closed-die forging methods (blocker type, conventional, and high definition); see Fig. 8 . The part weighs 1400 kg (3000 lb) and has 1.71 m 2 (2650 in. 2 ) plan view area (PVA); it is 498.3 mm (19.62 More
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Published: 01 January 2006
Fig. 4 Pit-initiated in-service failure of a landing gear due to dynamic stresses. The collapse of the high-strength 300M steel main landing gear load barrel was due to severe all-around pitting. More
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Published: 01 January 2006
Fig. 21 Catastrophic failure of F-14 nose landing gear cylinder, caused by corrosion-induced fatigue cracking of high-strength steel. Courtesy of S. Binard, Naval Air Depot—Jacksonville More
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Published: 01 January 2005
Fig. 2 Conventional forging for landing gear support beam fittings, with ribs and webs designed to enhance rigidity and with end bosses designed for load support. Dimensions given in inches More
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Published: 01 January 2005
Fig. 28 Conventional steel landing gear door actuator hinge forging that was designed with tooling pads to facilitate machining. See Example 5 . Dimensions in figure given in inches Item Conventional forging Material Cr-Mo steel (a) Heat treatment (b) Mechanical More
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Published: 01 January 2005
Fig. 10 Inboard and outboard landing gear wheel forgings, produced in magnesium, aluminum, and titanium alloys, respectively. See Table 2 for design data. See also Example 4. Dimensions given in inches More
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Published: 01 January 2005
Fig. 11 Truss forging for airframe nose landing gear wheel well fitting, shown in plan and sectional views. See Example 5 . Dimensions in figure given in inches Item Conventional forging Material and temper Aluminum alloy 2014-T6 Forging equipment 445 MN (50,000 tonf) press More
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Published: 01 January 1997
Fig. 4 Taxi simulations that predict loads from the landing gear into the aircraft More