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fixturing

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047602
EISBN: 978-1-62708-235-8
...Abstract Abstract Parts of 21Cr-6Ni-9Mn stainless steel that had been forged at about 815 deg C (1500 deg F) were gas tungsten arc welded. During postweld inspection, cracks were found in the HAZs of the welds. Welding had been done using a copper fixture that contacted the steel in the area...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006387
EISBN: 978-1-62708-217-4
... of the catapult system. Some loads could be absorbed however, when the aircraft is subjected to G loads. Visual examination of the part revealed that cracks through the wall thickness initiated on the inner walls of the fixture. Scanning electron microscopy (SEM) and electron optical examination revealed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001573
EISBN: 978-1-62708-226-6
...Abstract Abstract TiN coated back surgery wires were made of Ti-6Al-4V. The reported failure was the presence of pits located in the uncoated area of the wires. The uncoated area of the wire is where the wire is fixtured in the coating chamber during coating. Examination and analysis...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0090932
EISBN: 978-1-62708-235-8
... due to ductile overload. The forming stresses were sufficient to initiate surface ruptures, suggestive of having exceeded the forming limit. Recommendations included examining the forming process, including lubrication and workpiece fixturing. Cold drawing Cracks Wire 303 UNS S30300 Ductile...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091727
EISBN: 978-1-62708-217-4
... was performed with available aluminum text fixtures, with 300-series stainless steel, and then with titanium. No failures occurred in aluminum fixtures (apparently it provided cathodic protection). Failures in stainless steel fixtures occurred at the specimen pin areas, not at the sharp notches used to initiate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001732
EISBN: 978-1-62708-218-1
... and analyze all failures on a system basis. The statistical analysis of failure data usually requires a large sample because of the scatter generally found in fatigue-life values. To resolve the sample size problem, we decided to construct a fixture capable of cycling twelve lock assemblies simultaneously...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001785
EISBN: 978-1-62708-241-9
... for a minimum of 10 s [ 1 ]. A fixture, seen in Fig. 2 , was developed to enable force to be applied to the wrench while simultaneously measuring the torque being applied to the jaws of the wrench. The fixture contained a load cell, which measured torque applied to the open jaws of the wrench as the force...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001274
EISBN: 978-1-62708-215-0
...). The claimant's fingers under the hot pads would measure about 64 mm (2.5 in.). Hence, when both hands were supporting the 0.64 mm (0.025 in.) thick tray, as would be the case when lifting it out of the oven, the load on each hand/handle would be 90 kPa (13 psi). A cantilever test fixture, in which specimens...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001507
EISBN: 978-1-62708-217-4
... source for creating the defects on the ID bore of the shank was considered to be the blade tip chrome plating process, which was carried out during the last overhaul prior to the failure. During chrome plating the blade is suspended in the plating bath by a fixture which clamps onto the ID shank bore...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001699
EISBN: 978-1-62708-234-1
... the Cooling Tower and a tap fixture. Table 1 Water Quality Test Results from the Cooling Tower and a tap fixture. Parameter Cooling Tower Sample Sample from Tap @ Column B15/E4 Bicarbonate (ppm) 166 127 Carbonate (ppm) <20 <20 Alkalinity as CaCO 3 166 127 (ppm...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048607
EISBN: 978-1-62708-225-9
... a hardness of 41 to 42 HRC and a bolt having a hardness of 18 to 20 HRC were left uncoated for the test. All four bolts were assembled in a static test fixture and tightened to a torque value equal to 90% of their yield strength and then intermittently dipped in an acidified solution of 3.5% NaCl...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001054
EISBN: 978-1-62708-214-3
... cylinders, 6.4 mm ( 1 4 in.) in diameter and 25 mm (1.0 in.) long, with the uranium/silver/stainless steel joint at the center of the length ( Fig. 2 ). The plane of the joint was perpendicular to the axis of the specimen. Specimens were loaded in a fixture in three-point bend loading...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046044
EISBN: 978-1-62708-235-8
... and waiting for the pit furnace to be available. The 315 °C (600 °F) snap temper was used to impart sufficient ductility to the motor case so that it could be fixtured with a series of adjustable spiders and shoes that rounded the casing to final dimensions. The 550 °C (1025 °F) temper served a dual...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003566
EISBN: 978-1-62708-180-1
... by a quench crack. (a) 7×. (b) 28× Fig. 1 Hammer-testing device used by McIntire and Manning. Source: Ref 3 Fig. 2 First fixture used by Lodge to simulate spalling. Source: Ref 4 Fig. 3 Second fixture used by Lodge to simulate spalling. Courtesy of J.E. McGarry Fig. 4...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001632
EISBN: 978-1-62708-234-1
... and T. Romero at the CMR hot cells, the LANSCE-7 remote handling section, and T. Flossdorf at the FZJ hot cells. The authors thank E. Zimmermann for his continuing assistance in developing the tooling and fixtures required for these investigations. Because target areas at LANSCE become highly...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001030
EISBN: 978-1-62708-214-3
... the failure to use proper techniques involving speeds, feeds, and coolants and/or the failure to use proper equipment, such as special drills, reamers, and fixtures, when machining fastener holes. Because the susceptibility to SCC increases with increasing hardness in martensitic steels, the increased...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048095
EISBN: 978-1-62708-224-2
... used. The silicon content was lower and the magnesium and manganese contents were higher than normal for alloy 4043 filler metal. These differences were attributed to dilution of the weld metal by the base metal. A similar sling was fabricated in the laboratory, set up in a test fixture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048634
EISBN: 978-1-62708-225-9
... subsequently tested fasteners were installed in fixtures in which a constant load equivalent to 90% of the rated ultimate tensile strength could be maintained on the specimens. Stress-rupture testing was performed on lever-arm-type creep machines. Testing of any lot of pins was suspended when one pin failed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047745
EISBN: 978-1-62708-235-8
.... The lack of metallurgical bonding explained the joint failure, but appeared to contradict the success of the 1035-kPa (150-psi) water-pressure test before storage. However, the end thrust, which was only about 151 N (34 lb), may have been absorbed by a fixture; no information is available on the way...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001840
EISBN: 978-1-62708-241-9
... the microstructure. In order to evaluate the shear strength of cladded plates, the shear test was carried out according to the DIN 50162 standard [ 10 ]. Figure 4(a) shows the prepared shear test sample and corresponding fixture according to the mentioned standard ( Fig. 4b ). By applying the pressure on top...