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manufacturing imperfections

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003538
EISBN: 978-1-62708-180-1
... geometric factors and materials aspects that influence the stress-strain behavior and fracture of ductile metals. It highlights fractures arising from manufacturing imperfections and stress raisers. The article presents a root cause failure analysis case history to illustrate some of the fractography...
Book Chapter

By R.J. Glodowski
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001016
EISBN: 978-1-62708-161-0
... for the manufacture of carbon steel wire is produced with manufacturing controls and inspection procedures intended to ensure the degree of soundness and freedom from injurious surface imperfections necessary for specific applications. This article also describes the various quality descriptors applicable to the rods...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... during working. (j) Laps when excessive material is squeezed out and turned back into the material. (k) Chevron or internal bursts. See text for additional discussions. It must be clearly recognized that manufactured materials always have some imperfections or discontinuities that can...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... case, it is very important to make the distinction between a manufacturing imperfection and a manufacturing flaw (or defect). Manufactured components may contain geometric and material imperfections or nonconformities, but whether an imperfection caused a failure is critical in the determination...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
..., bending, torsion). Finally, the factors influencing the appearance of a fracture surface and various imperfections or stress raisers are described, followed by a root-cause failure analysis case history to illustrate some of these fractography concepts. brittle fracture crack nucleation crack...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... between a manufacturing imperfection and a manufacturing flaw (or defect ). Manufactured components typically contain geometric and material imperfections, but whether an imperfection caused a failure is critical in the determination of root cause. Manufacturing imperfections are not necessarily...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003526
EISBN: 978-1-62708-180-1
... mechanisms. The failure mechanism also may be may be a combination of design and/or manufacturing imperfections acting to cause crack initiation. In many cases a metallurgical failure analysis will provide sufficient information to correct any problems and prevent future failure. For example...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006773
EISBN: 978-1-62708-295-2
... the crack propagates initially by fatigue until final fracture (i.e., overload fracture) occurs from crack propagation by ductile and/or brittle fracture mechanisms. The failure mechanism also a combination of design and/or manufacturing imperfections acting to cause crack initiation. In many cases...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003095
EISBN: 978-1-62708-199-3
... high-carbon chromium steel billets, tube rounds, bars, and tubes modified for high hardenability A 534 Carburizing alloy steel billets, tube rounds, bars, rods, wire, and tubes of bearing quality A 535 Special quality alloy steel billets, bars, tube rounds, rods, and tubes for the manufacture...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002468
EISBN: 978-1-62708-194-8
... observed in practice. The discrepancy is usually attributed to manufacturing imperfections, such as lack of straightness of the column and lack of alignment between the direction of the compressive load and the axis of the column. This discrepancy can be accounted for by using an appropriate imperfection...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001014
EISBN: 978-1-62708-161-0
... bars and shapes contain surface imperfections with varying degrees of severity. In virtually all cases, these defects are undesirable and may in some applications affect the integrity of the finished product. Included in the manufacturing process for hot-rolled bars and shapes are various steps...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003141
EISBN: 978-1-62708-199-3
... Microstructural Control Reduction to Billet Properties of Rolled Bar, Plate, and Sheet Bauschinger Effect Effect of Welding on Properties Welding Methods Powder metallurgy (P/M) products having properties similar to those of other forms are now being manufactured. Table 4 compares room...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003520
EISBN: 978-1-62708-180-1
... metallographic examination microfractography process simulation visual examination X-ray techniques FAILURES may be caused by any of the following factors or combinations of factors: Design shortcomings Material imperfections due to faulty processing or fabrication Overloading and other...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001015
EISBN: 978-1-62708-161-0
..., and a surface free of imperfections. References 1. Bralla J.G. , Handbook of Product Design for Manufacturing , McGraw-Hill , 1986 2. Alloy, Carbon, and High Strength Low Alloy Steels, Semifinished for Forging; Hot Rolled Bars; Cold Finished Steel Bars; Hot...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003530
EISBN: 978-1-62708-180-1
... Abstract This article describes the underlying fundamentals, applications, the relevance and necessity of performing proper stress analysis in conducting a failure analysis. It presents an introduction to the stress analysis of bodies containing crack-like imperfections and the topic...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006756
EISBN: 978-1-62708-295-2
... damage are material flaws and welding flaws. Material imperfections can be the source of potential failure initiation sites in any component system. They pertain to deficiencies in manufacture and installation of material compared with expected and specified quality, including items such as forging laps...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001478
EISBN: 978-1-62708-173-3
... Method for Evaluating the Strength of Brazed Joints in Shear ANSI/AWS C3.3 Recommended Practices for Design, Manufacture, and Inspection of Critical Brazed Components ANSI/AWS C3.4 Specification for Torch Brazing ANSI/AWS C3.5 Specification for Induction Brazing ANSI/AWS C3.6...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006784
EISBN: 978-1-62708-295-2
... analysis practitioner or for someone who is contemplating procurement of a cost-effective failure analysis of commodity-grade components suspected of hydrogen embrittlement. Some prevention strategies for design and manufacturing problem-induced hydrogen embrittlement are also provided. failure...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003552
EISBN: 978-1-62708-180-1
... strategies for design and manufacturing problem-induced hydrogen embrittlement are also reviewed. aluminum aluminum alloys copper copper alloys cracking hydride formation hydrogen attack hydrogen damage hydrogen embrittlement hydrogen environment embrittlement hydrogen reaction embrittlement...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... but allowing the pilot sufficient flying time to land. In any case, the goal of failure analysis is to understand a situation sufficiently well to determine if changes in design, manufacture, or other areas are needed. When confronted with a cracked, fractured, or deformed component, the failure analyst...