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manufacturing defects

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... Abstract This appendix provides detailed information on design deficiencies, material and manufacturing defects, and service-life anomalies. It covers ingot-related defects, forging and sheet forming imperfections, casting defects, heat treating defects, and weld discontinuities. It shows how...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780011
EISBN: 978-1-62708-268-6
... it unacceptable at 50%. Many organizations are willing to accept yields less than 100% (sometimes significantly so). The organization may consider the defects to be a normal part of the manufacturing process, and they are accepted as a cost of doing business. Sometimes, warranty claims are regarded similarly...
Image
Published: 01 December 2009
Fig. 2.1 Shelf manufacturing quatity-based Pareto analysis showing defect quantities arranged by frequency during the preceding 30 days More
Image
Published: 01 December 2009
Fig. 2.2 Shelf manufacturing cost-based Pareto analysis showing defect costs for the most expensive defects during the preceding 30 days More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610001
EISBN: 978-1-62708-303-4
... fracture and explains how they reshaped design philosophies, procedures, and tools. It also discusses the influence of material and manufacturing defects, operating conditions, stress concentration and intensity, temperature and pressure, and cyclic loading, all of which play a role in the onset of fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610377
EISBN: 978-1-62708-303-4
... fatigue, those being matrix cracking, fiber breaking, crack coupling, delamination initiation, and delamination growth. The chapter describes each mechanism in detail along with related factors. It also discusses the primary differences between composites and metals, the effect of manufacturing defects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270005
EISBN: 978-1-62708-301-0
... Abstract This chapter identifies the primary causes of service failures and discusses the types of defects from which they stem. It presents more than a dozen examples of failures attributed to such causes as design defects, material defects, and manufacturing or processing defects as well...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110603
EISBN: 978-1-62708-247-1
...., functional tests, burn-in). Often companies do not destroy the parts in-house but rely on third parties. However, some parts escape destruction and are salvaged by counterfeiters. Examples of attributes of scrapped parts include manufacturing defects such as absence of die, lifted wire bonds, missing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110101
EISBN: 978-1-62708-247-1
..., diagnosis was used to improve at-speed tests, increasing the speed by 300MHz, plus several other cases. Introduction Scan diagnosis is an established technique identifying and localizing defects in digital semiconductor devices that fail manufacturing test. Traditionally, scan diagnosis tools relied...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430351
EISBN: 978-1-62708-253-2
... to Various Defects The main reasons for the presence of material defects in boiler tubes are a lack of quality control, or improper quality control checks at one or more stages including the manufacturing stage, during on-site fabrication, storage and handling, and installation of tubes. A variety...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110506
EISBN: 978-1-62708-247-1
... , pgs 153 - 159 ( 1988 ) 5. Santana M. Jr. , Herrera A.V. , “ Methodology to Correlate Defect Reduction Systems to Electrical Test data via Artificially Manufactured Defects ”, 28th International Symposium for Testing and Failure Analysis , pgs 587 - 589 ( 2002 ) 6. Rehani...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270003
EISBN: 978-1-62708-301-0
... of one type or another introduced mostly inadvertently during the various stages of the manufacture of a component and its usage. These defects could get introduced during the design of a component, its manufacture, assembly, inspection, and maintenance. Manufacture of a component involves materials...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780183
EISBN: 978-1-62708-268-6
... previously can be considered for implementation at suppliers. In some cases, manufacturers simply return defective products to suppliers, and the suppliers provide replacement components or subassemblies. This may provide quick relief, but it is not a good practice, especially if the returns occur frequently...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050263
EISBN: 978-1-62708-311-9
... characterization, and effective remedial actions. induction heat treating manufacturing defects THIS CHAPTER is designed to provide a step-by-step problem-solving sequence to help analyze the causes of nonconforming workpieces and to provide potential solutions. Workpieces can be out of tolerance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270053
EISBN: 978-1-62708-301-0
... the credibility of the manufacturer and the reliability of its products. When defective consumer products fail to perform their intended functions and thereby cause injuries to personnel or damage to property, the user resorts to product liability litigations. Litigations also follow when damages to structures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110634
EISBN: 978-1-62708-247-1
... is detecting real defects in the manufactured circuit. Figure 2 Photographs of two defects that behaved as “IDDQ-only” failures. (a) Extra polysilicon that shorted two input to a NOR gate. (b) Gate oxide short on the input of an XOR gate. As technology continues to advance, however...
Image
Published: 01 March 2000
Fig. 35 Billet casting and extrusion manufacturing control in relation to extrusion defects More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110666
EISBN: 978-1-62708-247-1
... of adherence to specification immediately following manufacture (designated time-zero or T 0 ), where reliability is an equivalent measure at any time later in the product (or component) lifetime. One example of the relationship between these two relates to defects. Quality ( T 0 ) defects are those...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870333
EISBN: 978-1-62708-314-0
... cycle. It is more prevalent at edges of parts or at core ramp areas. Node bond failures, in which the foil ribbons are separated at their connecting points or nodes, are usually defects that occur during the core manufacturing process, but they can also result from gas pressure differentials...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410253
EISBN: 978-1-62708-280-8
... by the customer, as a part of the control plan. Audit Record Retention A record of production rejects shall be maintained for two years, along with the type of defects and the date of manufacture. Gage-Out of Calibration If it is found that a gage has gone out of calibration, the required steps...