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tubular component
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Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003291
EISBN: 978-1-62708-176-4
... plastic case, and thermal stresses in a tube. The article illustrates the comparison of life predictions by the stress criteria and presents a simple mean diameter hoop stress equation, which is used for designing components. It also provides information on the multiaxial creep ductility of tubular...
Abstract
This article presents effective stress equations that are based on the von Mises criterion, the Tresca criterion, and the Huddleston criterion. It describes the calculation of effective stresses for different cases: elastic stresses, steady-state creep stresses, stresses in a fully plastic case, and thermal stresses in a tube. The article illustrates the comparison of life predictions by the stress criteria and presents a simple mean diameter hoop stress equation, which is used for designing components. It also provides information on the multiaxial creep ductility of tubular components and multiaxial testing methods.
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004014
EISBN: 978-1-62708-185-6
... tests are critical to assure optimal performance of the flow-formed tubular component. The article discusses the most commonly required process control parameters and the effects of forming speed and temperature in the flow forming process. flow forming flow-formed materials flow-formed tubular...
Abstract
A wide range of flow-formed open- and close-ended shapes are currently available in a variety of difficult-to-form materials, including titanium alloys and nickel-base super alloys. This article describes the two basic methods of flow forming that are characterized by the position of the rolls during the forming process. The flow forming methods include staggered-roll flow forming process and in-line flow-forming process. Typical mechanical properties of flow-formed materials in various conditions are summarized in a table. Proper process controls and subsequent product qualification tests are critical to assure optimal performance of the flow-formed tubular component. The article discusses the most commonly required process control parameters and the effects of forming speed and temperature in the flow forming process.
Book Chapter
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003990
EISBN: 978-1-62708-185-6
... Abstract Radial forging is a hot- or cold-forming process that uses two or more radially moving anvils or dies to produce solid or tubular components with constant or varying cross sections along their lengths. This article focuses on the workpiece configuration, workpiece materials, machines...
Abstract
Radial forging is a hot- or cold-forming process that uses two or more radially moving anvils or dies to produce solid or tubular components with constant or varying cross sections along their lengths. This article focuses on the workpiece configuration, workpiece materials, machines, dies, advantages, and limitations of radial forging. It concludes with a discussion on the applications of radial forging.
Book Chapter
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003115
EISBN: 978-1-62708-199-3
... steel products (see the following table). These applications include an extremely diversified range of uses, including nuclear reactor vessels, heat exchangers, oil industry tubulars, components for chemical processing and pulp and paper industries, furnace parts, and boilers used in fossil fuel...
Abstract
Stainless steels are iron-base alloys containing minimum of approximately 11% Cr, and owing to its excellent corrosion resistance, are used for wide range of applications. These applications include nuclear reactor vessels, heat exchangers, oil industry tubular, chemical processing components, pulp and paper industries, furnace parts, and boilers used in fossil fuel electric power plants. The article provides a brief introduction on corrosion resistance of wrought stainless steel and its designations. It lists the chemical composition and describes the physical and mechanical properties of five major stainless steel families, of which four are based on the crystallographic structure of the alloys, including martensitic, ferritic, austenitic, or duplex. The fifth is precipitation-hardenable alloys, based on the type of heat treatment used. The article further discusses the factors in the selection of stainless steel, namely corrosion resistance, fabrication characteristics, product forms, thermally induced embrittlement, mechanical properties in specific temperature ranges, and product cost.
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0009154
EISBN: 978-1-62708-186-3
... and 0.3), suggesting that for high mean stresses ( R = 0.7), a complete change in failure mode occurs. Fig. 16 Stress-number of cycles curves obtained by means of fatigue tests. Source: Ref 18 Crimping Crimping is used to assemble tubular components. In an example application, a bullet...
Abstract
Mechanical joining by forming includes all processes where parts being joined are formed locally and sometimes fully. This article focuses on the types, advantages, disadvantages, and applications of the various mechanical joining methods, namely, riveting, crimping, clinching, and self-pierce riveting.
Image
Published: 01 January 2001
Fig. 2 Schematic of a die and mandrel extrusion setup for producing a single tubular product. Press and die components shown are 1 and 2, container; 3, liner; 4, extrusion die; 5, die backer; 6, die holder; 7, bolster; 8, press body; 9, mandrel; 10, extrusion stem; 11, seal block.
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Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004144
EISBN: 978-1-62708-184-9
... of the plants. This Section deals with corrosion of components that continue to have the greatest effect on the reliability of the power plant. Corrosion of tubular components, for example, in condensers and boilers, appears to be the major challenge. Also discussed in this Section are flue gas systems...
Abstract
This article provides a summary of the concepts discussed in the Section “Corrosion in Specific Industries” in the ASM Handbook, Volume 13C:Corrosion: Environments and Industries. This Section applies the fundamental understanding of corrosion and knowledge of materials of construction to practical applications. The industries addressed are nuclear power, fossil and alternative fuel, land transportation, air transportation, microelectronics, chemical processing, pulp and paper, food and beverage, pharmaceutical and medical technology, petroleum and petrochemical, building, and mining and metal processing.
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003602
EISBN: 978-1-62708-182-5
... load during operation, and the stack components must be able to withstand the compressive load required for adequate sealing for the lifetime of the stack. Research is in the early stage and has focused on micas ( Ref 40 ), which are composed of sheets of silicate platelets ( Ref 41 ). Tubular Solid...
Abstract
This article describes the ideal performance of various low-temperature and high-temperature fuel cells that depends on the electrochemical reactions that occur between different fuels and oxygen. Low-temperature fuel cells, such as polymer electrolyte, alkaline, and phosphoric acid, and high-temperature fuel cells, such as molten carbonate and solid oxide, are discussed. The article contains tables that provide information on the evolution of cell-component technology for these fuel cells. It concludes with information on the advantages and limitations of the fuel cells.
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003320
EISBN: 978-1-62708-176-4
... geometries include rectangular plate specimens, cruciform specimens, compact tension shear specimens, compact shear specimens, mode II crack growth specimen, circumferentially notched cylindrical specimens, tubular specimens containing a slit, and solid cylindrical specimens containing a small hole...
Abstract
The main objective for the study of combined-stress fatigue is to obtain fatigue data for axles and to find the criterion for fatigue limit under combined stress. This article begins with a description of the stress states of combined stress and stress fields near crack tips. It provides an account of the various biaxial and multiaxial fatigue testing methods, specimen geometries, and stress intensity factors important in the study multiaxial fatigue. Widely used test methods are the torsion-rotating bending fatigue test and biaxial and triaxial fatigue tests. Common specimen geometries include rectangular plate specimens, cruciform specimens, compact tension shear specimens, compact shear specimens, mode II crack growth specimen, circumferentially notched cylindrical specimens, tubular specimens containing a slit, and solid cylindrical specimens containing a small hole or initial crack.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001376
EISBN: 978-1-62708-173-3
... steel are welded to the respective ends using conventional fusion-welding processes. Transition joint components are produced by explosion welders at their production facilities and then provided in the form of blocks, strips, or tubular couplings to equipment fabricators for use...
Abstract
Explosion welding (EXW) is a solid-state metal-joining process that uses explosive force to create an electron-sharing metallurgical bond between two metal components. This article discusses the process attributes of EXW, including metallurgical attributes, metal combinations, size limitations, configuration limitations, and bond zone morphology. It provides an overview of the common industrial applications and shop welding applications of EXW products. The article reviews different safety standards and regulations, such as noise and vibration abatement and process geometry. It concludes with a section on the EXW process sequence for welding a two-component flat plate product.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001357
EISBN: 978-1-62708-173-3
... the microplasma and medium-current modes. Joint configurations for plasma welding sheet and tubular components Table 3 Joint configurations for plasma welding sheet and tubular components Thickness range Joint type Joint configuration Process variant No. of runs Comments mm in. 0.5–1.0...
Abstract
Plasma arc welding (PAW) can be defined as a gas-shielded arc welding process where the coalescence of metals is achieved via the heat transferred by an arc that is created between a tungsten electrode and a workpiece. This article discusses the melt-in mode and the keyhole mode of the PAW process, as well as the advantages and disadvantages. It describes the components of a basic PAW system, namely the power source, plasma control console, water cooler, welding torch, and gas supply system for the plasma and shielding gases. The article provides information on the applications of the PAW process and discusses the typical components and joints used. It concludes with information on personnel requirements and safety issues.
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003597
EISBN: 978-1-62708-182-5
... to specific processes and discusses a variation of the steady-state process, pulse machining. Electrochemical Deburring A designer usually considers aspects of a component such as material, form, dimensional accuracy, surface texture, and heat treatment, but perhaps not the surface integrity and edge...
Abstract
Specific machining processes that employ electrochemical machining technology include deburring and deep-hole drilling. This article describes the principle and applications of electrochemical deburring as well as the machine tools used in the process. The system, process capabilities, and applications of electrochemical deep-hole drilling are also discussed. The article also reviews the pulse electrochemical machining.
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009078
EISBN: 978-1-62708-177-1
... Abstract Voids in fiber-reinforced composite materials are areas that are absent of the composite components: matrix (resin) and fibers. Voids have many causes but generally can be categorized as voids due to volatiles or as voids that result from entrapped air. This article describes...
Abstract
Voids in fiber-reinforced composite materials are areas that are absent of the composite components: matrix (resin) and fibers. Voids have many causes but generally can be categorized as voids due to volatiles or as voids that result from entrapped air. This article describes the analysis of various types of voids. It reviews techniques for analysis of voids at ply-drops, voids due to high fiber packing, and voids that occur in honeycomb core composites. The final section of the article discusses void documentation through the use of nondestructive inspection techniques and density/specific gravity measurement methods.
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005582
EISBN: 978-1-62708-174-0
... (0.020 in.). Fig. 4 Edge joints in thin type 304 stainless steel tubes. Courtesy of Edison Welding Institute Joint configurations for plasma welding sheet and tubular components Table 3 Joint configurations for plasma welding sheet and tubular components Thickness range Joint type...
Abstract
Plasma arc welding (PAW) can be defined as a gas-shielded arc welding process where the coalescence of metals is achieved via the heat transferred by an arc that is created between a tungsten electrode and a workpiece. This article focuses on the operating principles and procedures, current and operating modes, advantages, disadvantages, and applications of PAW. It discusses the personnel and equipment requirements, as well as the joints used in the process. The power source, plasma control console, water cooler, welding torch, and gas supply system for the plasma and shielding gases are also reviewed.
Book: Composites
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003403
EISBN: 978-1-62708-195-5
... composite tubular components that are fastened and bonded together using factory-molded corners, tee fittings, and flat gusset plates. The modular design of these tubular structures makes construction fast and easy with minimal material waste. Like the box-truss-bathtub design, “spaceframe” tubular...
Abstract
Composite tooling is the making of tools from composite materials. This article focuses on wet lay-up methods and techniques that are used to fabricate prepreg tooling. It discusses the advantages and disadvantages of composite tools. The article describes the process considerations for composite tool design, such as master model or pattern design selection, fiber and fabric selection, resins, and surface coat and ply. Various tool laminate construction techniques, such as curing and demolding, and cutting and trimming, are reviewed. The article also describes the substructure design for the construction of tool laminates.
Book Chapter
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003162
EISBN: 978-1-62708-199-3
... Abstract Hardfacing is defined as the application of a wear-resistant material, in depth, to the vulnerable surfaces of a component by a weld overlay or thermal spray process Hardfacing materials include a wide variety of alloys, carbides, and combinations of these materials. Iron-base...
Abstract
Hardfacing is defined as the application of a wear-resistant material, in depth, to the vulnerable surfaces of a component by a weld overlay or thermal spray process Hardfacing materials include a wide variety of alloys, carbides, and combinations of these materials. Iron-base hardfacing alloys can be divided into pearlitic steels, austenitic (manganese) steels, martensitic steels, high-alloy irons, and austenitic stainless steel. The types of nonferrous hardfacing alloys include cobalt-base/carbide-type alloys, laves phase alloys, nickel-base/boride-type alloys, and bronze type alloys. Hardfacing applications for wear control vary widely, ranging from very severe abrasive wear service, such as rock crushing and pulverizing to applications to minimize metal-to-metal wear. This article discusses the types of hardfacing alloys, namely iron-base alloys, nonferrous alloys, and tungsten carbides, and their applications and advantages.
Book: Composites
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003418
EISBN: 978-1-62708-195-5
... Abstract This article describes processes and equipment that are used to produce composite tubular parts. The processes include sheeting, pattern cutting, tube rolling, shrink tape debulking, and finishing. The article provides a discussion on materials that are most suitable for tube rolling...
Abstract
This article describes processes and equipment that are used to produce composite tubular parts. The processes include sheeting, pattern cutting, tube rolling, shrink tape debulking, and finishing. The article provides a discussion on materials that are most suitable for tube rolling: preimpregnated materials and unidirectional tapes. The article also discusses wrapping techniques of cylindrical and tapered tubes, such as convolute and spiral wrapping.
Book Chapter
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003040
EISBN: 978-1-62708-200-6
... as engineering materials did not occur until the later part of the 1970s, when researchers described the use of braids for composite preforms ( Ref 2 ) to reduce the cost of producing structural shapes. About the same time, the first published article on the structural mechanics of tubular braids appeared ( Ref...
Abstract
Braiding is a textile process that is known for its simplicity and versatility. Braided structures are unique in their high level of conformability, torsional stability, and damage resistance. This article describes the braiding process and the mechanical properties of two-dimensional and three-dimensional braiding.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001442
EISBN: 978-1-62708-173-3
... refers to the addition of weld metal to a base metal surface for the restoration of the component to the required dimensions. Buildup alloys are generally not designed to resist wear, but to return the worn part back to, or near, its original dimensions or to provide adequate support for subsequent...
Abstract
Hardfacing is a form of surfacing that is applied for the purpose of reducing wear, abrasion, impact, erosion, galling, or cavitation. This article describes the deposition of hardfacing alloys by oxyfuel welding, various arc welding methods, laser welding, and thermal spray processes. It discusses the categories of hardfacing alloy, such as build-up alloys, metal-to-metal wear alloys, metal-to-earth abrasion alloys, tungsten carbides, and nonferrous alloys. A summary of the selection guide for hardfacing alloys is presented in a table. The article describes the procedures for stainless steel weld cladding and the factors influencing joint integrity in dissimilar metal joining. It concludes with a discussion on joining carbon and low-alloy steels to various dissimilar materials (both ferrous and nonferrous) by arc welding.
Book Chapter
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009024
EISBN: 978-1-62708-187-0
... Abstract In most castings, there are junctions between intersecting component members. This article describes how defects can be eliminated in five types of junctions in steel castings, namely the L-junction, T-junction, V-junction, X-junction, and Y-junction. It also discusses design...
Abstract
In most castings, there are junctions between intersecting component members. This article describes how defects can be eliminated in five types of junctions in steel castings, namely the L-junction, T-junction, V-junction, X-junction, and Y-junction. It also discusses design considerations for junctions in aluminum castings and provides a comparison between the T-junction and Y-junction. Finally, the article illustrates recommended methods for minimizing defects where sections of unequal thickness form a junction.
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