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mistake minimization

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Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006912
EISBN: 978-1-62708-395-9
... Abstract Plastic product failures are directly attributed to one of the following four reasons: omission of a critical performance requirement, improper materials specification, design error, and processing/manufacturing error. Therefore, product failures can be minimized or eliminated if all...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003518
EISBN: 978-1-62708-180-1
..., including those that come from a deficient design, poor material, or mistakes in manufacturing. Whether those “defects” exist in a given component that is being subjected to the failure analysis process can often only be determined by someone with a materials background. The reasons for this are related...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006754
EISBN: 978-1-62708-295-2
... that many people define the causes of failure in a rather binary manner: was the part defective or was it abused? Obviously, there are many types of defects, including those that come from a deficient design, poor material, or mistakes in manufacturing. Whether those “defects” exist in a given component...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006921
EISBN: 978-1-62708-395-9
... Abstract The lifetime assessment of polymeric products is complicated, and if the methodology utilized leads to inaccurate predictions, the mistakes could lead to financial loss as well as potential loss of life, depending on the service application of the product. This article provides...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... the required strength when the solution-treating temperature was lowered to 870 °C (1600 °F). Faulty Heat Treatment Mistakes made in heat treating hardenable alloys are among the most common causes of premature failure. Temperatures that are either too high or too low can result in the development...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
... of the 17-7 PH Belleville washers, all sublots attained the required strength when the solution-treating temperature was lowered to 870 °C (1600 °F). Faulty Heat Treatment Mistakes made in heat treating hardenable alloys are among the most common causes of premature failure. Temperatures...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
... that can be eliminated by reasonable accident-prevention methods is unreasonable and unacceptable. A high risk of injury could be considered reasonable and acceptable if the injury is minimal and the risk is recognized by the individual concerned. As might be expected, there is extensive and ongoing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003502
EISBN: 978-1-62708-180-1
... Handbook . Indeed, if the guidelines and systematic design methods described in Volume 20 are appropriately followed, then the likelihood of a failure due to faulty design is minimized in the first place. What Is an Engineering Failure? When a piece of material breaks, cracks, corrodes, or otherwise...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006916
EISBN: 978-1-62708-395-9
... to the conventional injection molding approach, the scientific injection molding approach is a data-driven, systematic approach to developing a robust process by focusing on process physics, polymer chemistry, and rheological properties of the material. Product failures are minimized due to improved efficiencies...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001819
EISBN: 978-1-62708-180-1
... these conditions remain, the probability of an implant failure is minimal. The stabilization difficulties can be listed in ascending order, as follows: Joint replacements (endoprostheses) Corrective orthopedic surgery Fracture treatment Tumor resection (most difficult) Complications Related...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006935
EISBN: 978-1-62708-395-9
... into the selection process by specifying higher product performance requirements than are actually required. This is a serious mistake because overspecifying the property requirements can lead to the selection of inefficient processes and expensive materials. The principal functional requirements, or critical...
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
... attention to detail. Therefore, despite the value of the test and its long history of use, there has been minimal standardization. There are, however, two ASTM International standards—E 190 and E 290—that provide guidelines for testing strip, sheet, plate, and weldments ( Ref 2 , 3 ). Tests...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001808
EISBN: 978-1-62708-180-1
... design,” Section A-A, Fig. 3 ). The larger-radius fillet minimized stress concentration in this region and prevented recurrence of failure. Reversed-Bending Fatigue When the applied bending moment is reversing (alternating), all points in the shaft are subjected alternately to tension stress...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006814
EISBN: 978-1-62708-329-4
..., the reader will learn from the mistakes of others and use principles that will avoid the occurrence of similar failures in the future. The topics covered include failure analysis fundamentals, welded connections failure analysis, welded connections and discontinuities, and fatigue. In addition, several case...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006821
EISBN: 978-1-62708-329-4
..., all aircraft components should be preserved in a fashion that is representative of how they were found immediately after the failure. When components must be stored, it is important that they are stored to reasonably minimize postincident material changes by the storage environment or time; critical...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006810
EISBN: 978-1-62708-329-4
... that intersected the surface of the fillet, initiated a crack. Corrective Measures New shafts were made with a 2.4 mm (0.09 in.) radius fillet at the critical change in section (“Improved design,” section A-A, Fig. 3 ). The larger-radius fillet minimized stress concentration in this region and prevented...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
... or nonreactive gases, such as helium or nitrogen, in order to avoid unacceptable corrosion. Wet lay-up using deoxygenated water or the continuous circulation of demineralized deoxygenated water can also be used to minimize corrosion. Recordkeeping during such periods is as important as record-keeping during...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... mistakes, a practice that ignores all of the other contributing factors to the failure, and may result in unnecessary or ill-advised corrective actions. Perfunctory failure analysis or incomplete root-cause investigation can be very misleading or even dangerous. Ductile fracture occurs from...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003503
EISBN: 978-1-62708-180-1
... historical failure modes and causes, and has designed the product to minimize the effects of those failures. In companies that use integrated product development teams to design their products, the design team generally includes members from most of these groups. In this case the FMEA facilitates...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006815
EISBN: 978-1-62708-329-4