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tube bending

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003178
EISBN: 978-1-62708-199-3
... Table 2 Minimum practical inside radii for the cold draw bending of annealed steel or copper round tubing to 180° Tubing outside diameter Minimum practical inside radius (a) Grooved bending tools Cylindrical bending block without mandrel; ratio, <30 (b) (poor conditions) With...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000605
EISBN: 978-1-62708-181-8
... revealing thiobacilli carcasses (nodules) and sulfur-bearing compounds (smooth area). SEM, 800× (H.J. Snyder, Snyder Technical Laboratory) Internal cracking of ASME SA178 grade A boiler tube due to corrosion fatigue. Failure occurred at the inner radius of a tube bend near the steam drum. Tube OD, 65 mm...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005930
EISBN: 978-1-62708-166-5
... systems designed to reduce emissions and further improve efficiency have employed silicon carbide internal components. Another recent development combines straight legs made of silicon/silicon carbide composite tubes with reaction-bonded return bends to fabricate U-tubes ( Fig. 12b ). All of these...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006449
EISBN: 978-1-62708-190-0
..., length, and straightness, and even to evaluate the dimensions of bends in tube-bending operations. In many camera systems that generate dimensional data, it is necessary to use multiple cameras that are precisely positioned to capture multiple views of the product. Lighting is an important consideration...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003983
EISBN: 978-1-62708-185-6
... Abstract Rotary swaging is an incremental metalworking process for reducing the cross-sectional area or otherwise changing the shape of bars, tubes, or wires by repeated radial blows with two or more dies. This article discusses the applicability of swaging and metal flow during swaging. It...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005296
EISBN: 978-1-62708-187-0
... continuous casting of steel. It reviews the trends in the steel industry, such as near-net shape casting, the use of tundish metallurgy, and pouring stream protection. The article discusses the use and capabilities of different molds for steel continuous casting. These include thin-wall tube-type molds...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000610
EISBN: 978-1-62708-181-8
... these steels. The austenitic stainless steel components include spring wires, preheater-reactor slurry transfer lines and gas lines of coal-liquefaction pilot plants, oil feed tubes and suction couch rolls of paper machines, cortical screws and compression hip screws of orthopedic implants, and Jewett...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003980
EISBN: 978-1-62708-185-6
... deals with various upsetting processes: offset upsetting, double-end upsetting, upsetting with sliding dies, upsetting pipe and tubing, and electric upsetting. The article also provides information on hot forging and cold forging. cold forging cold shearing double-end upsetting electric...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000609
EISBN: 978-1-62708-181-8
... fracture, fracture by overpressurization, inclusion effect, fatigue crack propagation, ductile fatigue striation, secondary cracking, intergranular fracture, and elevated-temperature fracture of alloy steels used in pressure vessels, steam boiler superheater tubes, and box-girder bridges. alloy steel...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... oxidation, carburization, metal dusting, nitridation, carbonitridation, sulfidation, and chloridation. Several other potential degradation processes, namely hot corrosion, hydrogen interactions, molten salts, aging, molten sand, erosion-corrosion, and environmental cracking, are discussed under boiler tube...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
... case history on IG fracture of steam generator tubes, where a lowering of the operating temperature was proposed to reduce failures. dimpled intergranular fracture grain boundaries hydrogen embrittlement intergranular brittle cracking intergranular fatigue intergranular stress-corrosion...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003141
EISBN: 978-1-62708-199-3
..., including all operations that convert ingot into general mill products, such as billet, bar, plate, sheet, strip, tube, and wire. The section on secondary fabrication describes processes such as die forging, extrusion, hot and cold forming, machining, chemical milling, and joining. The article presents a...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005924
EISBN: 978-1-62708-166-5
... Abstract Induction heating has many different applications, such as melting, heating stock for forging, and heat treating. This article begins with a discussion on the types of power supplies, namely, solid-state power supplies and oscillator tubes. It provides information on system elements...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003243
EISBN: 978-1-62708-199-3
... susceptible, with failure expected after long exposure to hydrogen; therefore, the material must be protected against exposure. Slow strain-rate tensile test can be used to evaluate many product forms, including plate, rod, wire, sheet, and tubing, as well as welded parts. Smooth, notched, or precracked...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
... nonferrous metals. The article reviews the various types of forming processes such as blanking, piercing, fine-edge blanking, press bending, press forming, forming by multiple-slide machines, deep drawing, stretch forming, spinning, rubber-pad forming, three-roll forming, contour roll forming, drop hammer...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000606
EISBN: 978-1-62708-181-8
... housing (217 to 229 HB). The part was subjected to unidirectional bending stresses normal for the application. Fig. 243 : Fracture surface showing four major fatigue crack origins (arrows). Cracks progressed up both sides of the tube and joined at the small final rupture area at top. Note increasing...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000608
EISBN: 978-1-62708-181-8
... spider of AISI 4340 steel and through the central pilot tube of the arm. The fatigue crack originated in the fillet between the bearing-retention flange and the blade arm. Hardness of the forging was 35 HRC. The origin is at arrow A (lower left), at an inclusion. The fatigue crack penetrated as far as...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003161
EISBN: 978-1-62708-199-3
... alloys are used for lens blocking tube bending, for anchoring chucks and fixtures, and for mounting thin sections such as gas turbine blades for machining. The eutectic fusible alloys, which can be tailored to give a specific melting point find application in temperature control devices and in fire...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005657
EISBN: 978-1-62708-198-6
..., and stress concentration, can be more important to high-cycle fatigue. Fig. 16 SEM image shows low-cycle unidirectional bending fatigue in a Nitinol wire (arrow indicates origin; dashed line indicates extent of fatigue cracking) Fig. 17 SEM image of high-cycle unidirectional bending...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003230
EISBN: 978-1-62708-199-3
...) A borescope ( Fig. 1 ) is a long, tubular optical device that illuminates and allows the inspection of surfaces inside narrow tubes and difficult-to-reach chambers. The tube, which can be rigid or flexible with a wide variety of lengths and diameters, provides the necessary optical connection...