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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0089734
EISBN: 978-1-62708-235-8
... welds on the surfaces of the flanges. Recommendations included using ultrasonic testing to identify the appropriate joints and then replacing them. Special attention to accuracy of fit-up in the replacement joints was also recommended to achieve smooth, notch-free contours on the interior surfaces...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001302
EISBN: 978-1-62708-215-0
..., especially with respect to the accuracy of the optical pyrometer temperature readout. Also, procedures must be developed such that forging blanks that trigger the over-temperature alarm are reliably and permanently removed from the production line. Crack propagation Forging defects Mechanical...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001788
EISBN: 978-1-62708-241-9
... the determination of existing load conditions in the potential fatigue location of the die, reliable fatigue data at required process conditions, and the accuracy and reliability of numerical values obtained from simulation [ 6 ]. Damage Parameters Used The fundamental problem in reducing multi-axial loading...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006758
EISBN: 978-1-62708-295-2
... or chemicals, contact with the part, moving the part, heating or cooling the part, mechanically exciting the part, or irradiating the part. If available, material- and part-specific calibration standards can aid in the accuracy of the NDE efforts. It is also advisable for the customer to ensure NDE personnel...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006770
EISBN: 978-1-62708-295-2
... for failure analysis, qualitative results are adequate, but the method can determine quantitative elemental compositions to a precision of 0.01 wt% with relative accuracies of ±5%, depending on the specific material, type of x-ray detector used, the method of data analysis employed, and, as always, the skill...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0092131
EISBN: 978-1-62708-234-1
... had 10% lower yield strength than material in the undeformed spring. The estimates of yield strength were considered valid because of two factors: the accuracy of the hardness testing and characteristically consistent ratios of yield strength to tensile strength for the grades of steel commonly used...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006772
EISBN: 978-1-62708-295-2
... sUAS-generated point cloud data are generally not as accurate. Without the use of additional surveying tools such as ground control points (GCPs), sUAS-generated data can be accurate to within ±15 cm (6 in.). The GCPs can increase the accuracy of sUAS point cloud data to within ±3 cm (1.2...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001601
EISBN: 978-1-62708-235-8
... A 370 ( Fig. 3 ). The specified and achieved mechanical properties and dimensional accuracies are presented in Table 2 . Flow forming sequence with thickness and hardness variations in each pass Table 1 Flow forming sequence with thickness and hardness variations in each pass Pass...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001797
EISBN: 978-1-62708-241-9
.... , Su H. : Minimizing and restricting vibrations in high-speed cam-follower system over a range of speeds . J. Mech. Des. Trans. ASME 74 , 1157 – 1164 ( 2007 ) 10.1115/1.2723812 6. Rothbart H.A. : Design, dynamic and accuracy . Wiley , New York ( 1956 ) 7. Kim H.R...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006937
EISBN: 978-1-62708-395-9
... such as density differences, fillers, pigments, and voids. With the described setup, accuracies of 0.1 to 0.3% can be obtained. However, if haze is greater than 30%, ASTM E 167 should be used. Transmission is normally measured and plotted against wavelength. If a material exhibits no internal absorption...
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 time required for the water to begin boiling was recorded for each cup position. The experiment was repeated four times for each of the three ovens. All test results were within experimental accuracy. To measure and verify the cooking temperatures of microwaveable dinners, sheathed-thermocouple...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... of the appropriate hardness test, especially for bulk hardness; accuracy of hardness data; and so on. Hardness is usually used as a correlation to heat treatment condition and/or tensile strength. Therefore, any singular failure of a hardness test indicates an area that does not satisfy a tensile strength...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003523
EISBN: 978-1-62708-180-1
... testing, the assumptions made for the model should be well known and the model should be proven. If the model is being used in combination with testing, then the accuracy of the model is not as critical, because proper testing should determine the validity of the model. Whether modeling, testing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0089429
EISBN: 978-1-62708-223-5
... rating being “slight to medium.” A “medium” rating was permitted. Heat treatment and nitriding practices were consistent with those published by ASM International. After heat treatment, the drills were within the specified range of 64 to 66 HRC. Some twenty other inspections for dimensional accuracy...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006768
EISBN: 978-1-62708-295-2
... ( Ref 13 ). The importance of the XRD method resides in its ability to measure residual and applied stress with high spatial resolution, speed, and excellent accuracy, and, in many cases, measurements can be performed nondestructively ( Ref 14 ). The measurement of residual stress via XRD is generally...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006762
EISBN: 978-1-62708-295-2
... should be described textually. If multiple equations are used, each should be numbered sequentially for reference. Testing and data accuracy should be addressed. The appropriate appendix should be referenced concerning error analysis and computational and analytical details. The discussion section...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003528
EISBN: 978-1-62708-180-1
... resolution, speed, and excellent accuracy, and, in many cases, measurements can be performed nondestructively ( Ref 13 ). The measurement of residual stress via XRD is generally limited to polycrystalline materials ( Ref 6 ), that is, in materials with a grain structure (long-range ordering) as normally...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
... Before the details of the analytical method are discussed, it should be noted that there are few analytical methods that can be properly performed without knowledge of the intended composition. Most of the analytical methods in use today are instrumental methods whose accuracy depends on calibrations...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001199
EISBN: 978-1-62708-235-8
... was on an E. M. B. 12 B machine, using a ram velocity during cavity fill of approximately 0.76 m/sec and a piston pressure of 0.5 MPa. The cavity fill time varied between 11 and 19 milliseconds. Because of limitation in the accuracy of the data collected, the coefficient of discharge into the cavity 1 , 10...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001383
EISBN: 978-1-62708-215-0
... deflection rate of 10 −2 min. Machined samples with smooth gage lengths were also tested at two different deflection rates, 10 −2 min. and 10 −5 min. The slower strain rate tests showed a small drop in strength, but the statistical accuracy was not sufficient to state unequivocally that residual hydrogen...