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metal injection molded materials

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090451
EISBN: 978-1-62708-218-1
...Abstract Abstract Cracking occurred within the plastic jacket (injection molded from an impact-modified, 15% glass-fiber-reinforced PET resin.) of several assemblies used in a transportation application during an engineering testing regimen which involved cyclic thermal shock (exposing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090457
EISBN: 978-1-62708-222-8
... to secure a metal slide on an older design, whereas newer components showed no signs of failure. The latch assembly components were injection molded from an unfilled commercial grade of a polyacetal copolymer. Investigation of failed parts (including visual inspection, a specially designed proof load test...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... center on the techniques used to evaluate the composition and structure of the material. Unlike metals, polymers have a molecular structure that includes characteristics such as molecular weight, crystallinity, and orientation, and this has a significant impact on the properties of the molded article...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0090460
EISBN: 978-1-62708-234-1
... been injection molded from a 30% glass-fiber and mineral-reinforced nylon 12 resin. Investigation, including visual inspection, 118x SEM images, 9x micrographs, energy-dispersive x-ray spectroscopy, micro-FTIR in the ATR mode, and TGA, supported the conclusion that the filter component failed...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... angles and cores) Metal penetration D 224 Fragment of mold material embedded in casting surface Dip coat spall, scab D 230: Plate-like metallic projections with rough surfaces, usually parallel to casting surface D 231 (a) Plate-like metallic projections with rough surfaces...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001593
EISBN: 978-1-62708-234-1
... in the coefficients of thermal expansion between the plastic and the metal insert. During molding, the plastic is in a molten state, which for the current material was approximately 370 °C. Through the cooling process associated with the molding operation, the plastic, having a significantly higher coefficient...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0048782
EISBN: 978-1-62708-235-8
..., ruptured after about 3 years of service, launching the body of the vessel into a neighboring house. The accumulator was used in a plastic molding operation and operated at a pressure of 827 kPa (120 psi), dropping to 780 kPa (113 psi) during the injection cycle. It was designed for 1035-kPa (150-psi...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006800
EISBN: 978-1-62708-329-4
.... Boyer H. , Introduction: Selection Criteria , Selection of Materials for Component Design , American Society for Metals , 1986 11. Schey J.A. , Introduction to Manufacturing Processes , 2nd ed. , McGraw-Hill , 1987 12. Gunia R. , Ed., Source Book on Materials...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003501
EISBN: 978-1-62708-180-1
... category of material. Metals can be subdivided into categories such as carbon steel, stainless steel, and copper alloys. Plastics can be subdivided into specific classes of thermoplastics and thermosets, such as polycarbonates and polyesters. Level IV: Select a specific material according...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
... and metal at the hottest points of the casting (re-entrant angles and cores) Metal penetration D 224 Fragment of mold material embedded in casting surface Dip coat spall, scab D 230 Plate-like metallic projections with rough surfaces, usually parallel to casting surface D 231...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... Bond energies for various materials Bond type Material Bond energy kJ/mol kcal/mol Ionic NaCl 640 153 MgO 1000 239 Covalent Si 450 108 C (diamond) 713 170 Metallic Hg 68 16 Al 324 77 Fe 406 97 W 849 203 van der Waals Ar 7.8 1.8 Cl 2 31...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001681
EISBN: 978-1-62708-234-1
... and Materials Requirements for Coal Gasification” , Chemical Engr. Progress , Vol. 71 , no. 11 , p. 51 ( 1975 ). 9. Superalloys - A Technical Guide , Bradley E. F. , ed., ASM International , Materials Park, OH ( 1988 ). 10. Metals Handbook , 9th edition , Vol. 3 , American Society...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001781
EISBN: 978-1-62708-241-9
... spectrometer (MAXx LMM04, SPECTRO Analytical Instruments) was used to analyze the elemental breakdown of the alloy. The spectrometer uses the Spark Analyzer Vision Software and is well suited for applications like die cast or injection molding and for standard requirements in steel or non-ferrous foundries...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
... Hot section components in the gas turbine have the potential for significant damage to develop in time periods much shorter than a typical creep failure. The design metal temperatures of gas turbine components are significantly lower than the melting point of the materials of construction. Accordingly...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... powder parts are typically infiltrated with either a metal or polymer for mechanical integrity, but modern techniques are focusing on densifying the bound powder parts completely to form fully dense, single-alloy (metal) artifacts very similar to the technique used in metal injection molding...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003500
EISBN: 978-1-62708-180-1
... or discontinuities in materials are defects, and some types of imperfections may be generally detrimental to the performance or appearance of a product or system. Some of the classical types of material discontinuities that have been identified as causal factor(s) in failures include: Metal product form Types...
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
... to wrought Monel pipe. Metallographic examination disclosed many small microfissures in the weld metal, but no microfissures were found in the HAZs of the wrought Monel. This section of line contained high thermal stresses that resulted from injection of steam a short distance upstream from the coupling...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... to manufacture at normal production rates … Material discontinuities that cause failures in metal products Table 2 Material discontinuities that cause failures in metal products Metal product form Types of discontinuities Forgings Laps Bursts Cracks Flow-through defects Extrusion-type...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
.... Galvanic corrosion occurs when two dissimilar conducting materials (metallic or nonmetallic) are in electrical contact. It usually consists of two dissimilar conductors in electrical contact with each other and with a common conducting fluid (an electrolyte), or it may occur when two similar conductors...