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hot extrusion

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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
... in design and process optimization. The dies used in the investigation were made of H13 steels and fractured during the hot extrusion of Al-6063 billet material. They were examined to identify critical fatigue failure locations, determine corresponding stresses and strains, and uncover correlations...
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
... operations are also classified as either primary metalworking (where mill forms such as bar, plate, tube, sheet, and wire are worked from ingot or other cast forms) or secondary metalworking (where mill products are further formed into finished products by hot forging, cold forging, drawing, extrusion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006402
EISBN: 978-1-62708-217-4
... to anodizing. A hot inhibited alkaline cleaner was also recommended during cleaning prior to anodizing. The panels should be dichromate sealed after anodizing. The use of deionized water was also recommended during the dichromate sealing operation. In addition, the use of an epoxy primer prior to shipment...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006915
EISBN: 978-1-62708-395-9
.... It also reviews plastic processing operations, including extrusion, injection molding, and thermoforming, and addresses related considerations such as melt viscosity and melt strength, crystallization, orientation, die swell, melt fracture, shrinkage, molded-in stress, and polymer degradation...
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 highly deformed microstructure. Significant increases in yield strength, ultimate tensile strength, and hardness, and a corresponding reduction in ductility, accompany the flow forming process. Conventionally, tubes are produced by hot extrusion followed by drawing or pilgering. However...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006864
EISBN: 978-1-62708-395-9
...Suggested troubleshooting ideas for process defects encountered during extrusion Table 1 Suggested troubleshooting ideas for process defects encountered during extrusion Process defect Cause Troubleshooting step Low output Many potential causes Is the bulk density too low...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006835
EISBN: 978-1-62708-329-4
... such as bar, plate, tube, sheet, and wire are worked from ingot or other cast forms) or secondary metalworking (where mill products are further formed into finished products by hot forging, cold forging, drawing, extrusion, straightening, sizing, etc.). These metalworking operations have a twofold purpose...
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
... Process Reinforcement Capabilities and Selected Properties Foam Injection Molding Compression Molding Sandwich Molding Stamping Blow Molding Extrusion Twin-Sheet Forming Thermoforming Twin-Sheet Stamping Filament Winding Rotational Casting Shape and Design Detail...
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
... around edges Hot cracking C 200: Discontinuities caused by internal tension and restraints to contraction (cracks and tears) C 210: Cold cracking or tearing C 211 (a) Discontinuities with squared edges in areas susceptible to tensile stresses during cooling; surface not oxidized...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001738
EISBN: 978-1-62708-220-4
... of the coarse-grained zone is due to the manufacturing method of the manifold (hot extrusion). Replica Technique The orientation of the oxidation cracks is in axial direction (thus similar to creep cracks). Using the replica technique in situ, the cracks were thought to be creep cracks. This confirms...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006867
EISBN: 978-1-62708-395-9
... been shown to initiate oxidative degradation in polyolefin piping, particularly in continuous recirculating hot potable water systems ( Ref 16 ). Chlorine and chloramine water treatments have been shown to cause degradation of some rubber components in household plumbing systems ( Ref 17 ). As above...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006925
EISBN: 978-1-62708-395-9
... to 315 °C (600 °F), which is the highest service temperature of any polymeric material. Polyimide parts are fabricated by conventional injection, transfer, extrusion, and compression molding methods. Applications include aerospace and electronics, and polyimides are making inroads into the industrial...
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
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
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001617
EISBN: 978-1-62708-227-3
...., casting, forging) as well as how the component was fabricated (e.g., hot or cold working) Any joining process used (e.g., welding, brazing) The heat treatment of the material, including whether components were stress relieved after cold work, and the expected mechanical properties The finishing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003554
EISBN: 978-1-62708-180-1
...). Other coarse-grained regions were located 90° circumferentially from the cracked areas. It was concluded that the pipes had been manufactured by extrusion through a bridged die, and that the extreme grain growth had resulted from the heat and strain of welding in the die. Coarse grains mean less...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001515
EISBN: 978-1-62708-229-7
...-transport system, indicating leakage from the pressure tube. The reactor was shut-down but hot (about 250°C) at the time of the leakage and, following the station's operating procedures, the reactor was immediately cooled and depressurized. This procedure demonstrated leak-before-break as a defence against...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006786
EISBN: 978-1-62708-295-2
... very coarse-grained regions of the pipe walls (approximately 10 grains through the 6.0 mm, or 0.236 in., wall thickness). Other coarse-grained regions were located 90° circumferentially from the cracked areas. It was concluded that the pipes had been manufactured by extrusion through a bridged die...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001707
EISBN: 978-1-62708-217-4
... of hydrogen embrittlement, the hydrogen contents of the failed shrink link and a second cracked link were measured by the hot extraction method. This method measures the total hydrogen content of a part. For comparison purposes, the hydrogen contents of a crack-free shrink link and a crack-free planing link...