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thin-wall tubes

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Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630055
EISBN: 978-1-62708-270-9
... as collapse due to compressive instability. It is most common when long, slender columns are compressed in an axial direction, or when thin-wall tubes are compressed in either an axial direction or a diagonal direction as a result of torsional loading. This type of failure also can occur on the compressive...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500179
EISBN: 978-1-62708-317-1
... – 201 10.1533/9781845694418.2.181 9.17 Li H. , Yang H. , Zhan M. , and Kou Y.L. , Deformation Behaviors of Thin-Walled Tube in Rotary Draw Bending under Push Assistant Loading Conditions , J. Mater. Process. Technol. , Vol 210 ( No. 1 ), Jan 1 , 2010 , p 143 – 158...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860095
EISBN: 978-1-62708-338-6
.... , Development of a Vacuum Bagging Technique for Autoclave Curing of Filament Wound Thin-Walled Tubes , Mater. Manuf. Process. , Vol 10 ( No. 1 ), 1995 , p 1 – 10 10.1080/10426919508934993 8.24 Swanson W.R. , Toombes G.R. , and Beckwith S.W. , In-Plane Shear Properties of Composites...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310243
EISBN: 978-1-62708-286-0
... systems such as for power plants often need to resist corrosion by brackish water or seawater. To the extent that these are thin-wall tubing, ferritic alloys such as Seacure (UNS S44660) or 29-4C (UNS S44735) have been used quite successfully. If thicker tubes are required, then the equivalent duplex...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430017
EISBN: 978-1-62708-253-2
... in the passage of flue gases in between the exit from the boiler and the entry to the chimney. It consists of a large number of small-diameter, thin-walled tubes placed between the two headers. Feedwater enters the tubes through one header and leaves through the other. The flue gases flow outside the tubes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400005
EISBN: 978-1-62708-316-4
... wave whose energy is high enough to form the metal. Explosive forming is reserved for large parts, typical of the aerospace industry: Equipment: special explosive forming equipment Materials: aluminum alloys, steels, high-temperature alloys Applications: forming of thin-wall tubing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500211
EISBN: 978-1-62708-317-1
... production in relevant industrial applications ( Fig. 10.9a ). Both the single- and the multiple-radius forming strategies show a steady orientation of the bending sequence toward the closed, round tube cross section. Typically, these two strategies are applied to thin-walled tubes with a high diameter...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050245
EISBN: 978-1-62708-311-9
... exchanger tubes for wall thinning and cracks Liquid penetrant Surface openings due to cracks, porosity, seams, or folds Inexpensive, easy to use, readily portable, sensitive to small surface flaws Flaw must be open to surface. Not useful on porous materials or rough surfaces. Turbine blades...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500249
EISBN: 978-1-62708-317-1
... be avoided to achieve good part quality. The ratio between the longitudinal and the axial material flow is highly affected by the contact zone of the tool on the workpiece. In addition to roller tools, ball-shaped tools are also known to form long and precise thin-walled tubes and cylinders ( Fig. 12.29...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480243
EISBN: 978-1-62708-318-8
... Typical roll-forming machine Roll forming is also used to bend strip into cylinders that are butt welded to form thin-walled tubing. Other structural shapes can also be produced. Similar products can be made on a draw bench where the workpiece is pulled through a series of heads or stands...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430149
EISBN: 978-1-62708-253-2
... material. There is considerable reduction in the wall thickness of the tube and the rupture location is often like a knife-edge. A thin-lip fracture is also characterized by a considerable swelling or bulging of the tube surrounding the rupture area. Lateral bending of the tube is noticed when high...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980417
EISBN: 978-1-62708-342-3
... to 600 °C are not usually cooled internally. Porthole dies and bridge dies ( Fig. 7.5 , 7.21 , and 7.22 ) are mainly used to produce thin-walled tubes and hollow sections from materials, the deformation conditions of which can be thermomechanically tolerated by the extrusion tool and their hot...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430314
EISBN: 978-1-62708-253-2
... of screen tubes or superheater tubes. Typical features of fly ash erosion include polishing of the impacted surface, formation of flat spots, tube wall thinning, and tube rupture. Occasionally irregular flow marks and grooving are also observed, as shown in Fig. 6.127 . Fig. 6.127 (a) Eroded...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050057
EISBN: 978-1-62708-311-9
... the outer plate at the quenchant outlet permits easy access for cleaning the quenching orifices. Figure 4.16 : Single-turn tube coil shaped for single-shot, contour hardening. This coil was designed for thin-wall tube hardening and tempering. Figure 4.17 : Single-turn machined coil with integral...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
... from the data in Fig. 2.12 . Hence, efficiency goes down with decreasing wall thickness. For the case of an infinitely thin-wall tube, there is actually no workpiece and no heat dissipated in the workpiece, thereby leading to zero efficiency. Fig. 6.3(a) Coil efficiency for induction heating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430409
EISBN: 978-1-62708-253-2
.... Ultrasonic thickness mapping at various locations of the tube indicated maximum wall thinning by 0.45 mm (the original wall was 6.35 mm) after about 225,000 hours of operation. The rate of thinning (corrosion) was derived as: This indicated a corrosion rate of 0.69 mils per year (MPY), considering...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980195
EISBN: 978-1-62708-342-3
... used as the base material for bearing metals. Very little friction occurs in direct extrusion between the billet surface and the container inner wall because of these good bearing properties. Tin-base extruded alloys, therefore, tend to flow largely according to flow pattern A ( Fig. 3.11 ) in direct...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430290
EISBN: 978-1-62708-253-2
... the tube surface as liquid slag. These compounds have low melting temperatures (as low as 250 °C, or 480 °F) and they dissolve the protective magnetite layer, resulting in corrosion of the tube surfaces ( Ref 6.1 ). Scale formation and wall thinning of low-alloy steel tubes due to oil-ash corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
..., the magnetite forms a thin, black, and firmly adherent layer on the tube surface that helps to improve the heat transfer across the tube wall due to its excellent thermal conductivity. It is worth noting that hematite forms under oxidizing conditions, whereas magnetite forms under reducing conditions. The main...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430325
EISBN: 978-1-62708-253-2
... of 51.0 mm (2 in.) OD and 8.0 mm (0.3 in.) thickness. The superheater tube sample showed failure in the form of a rupture in the transverse direction with respect to the tube axis ( Fig. 6.137 ). No wall thinning was noticed and there was no deformation in the contours. The rupture surface looked...