1-20 of 340 Search Results for

high-energy-density welding

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 01 November 2011
Fig. 1.7 25Cr-1Mo steel plate, single-pass electron beam weld. Macrostructure shows high depth-to-width ratio of the fusion zone, which is typical of high-energy-density welding processes. Source: Ref 1.3 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930311
EISBN: 978-1-62708-359-1
... application at minimum capital investment. If production volume is large, the high capital investment required for LBW and EBW systems can be acceptable, based on higher welding rates and improved productivity. For titanium plate thickness exceeding about 5 mm (0.20 in.), the high-energy density processes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
... beam welding is a high-energy-density fusion process that is accomplished by bombarding the joint to be welded with an intense and strongly focused beam of electrons that have been accelerated up to velocities 0.3 to 0.7 times the speed of light at 25 to 200 kV, respectively. The instantaneous...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
...-heated zone to enable temperature equalization. Power density, or power per unit of surface area, has a similar effect on temperature uniformity. Excessively high power densities may lead to overheating (or even melting) of the workpiece surface. Moderate power densities allow moderate heating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120065
EISBN: 978-1-62708-269-3
... be acceptable, based on higher welding rates and improved productivity. For titanium plate thickness exceeding about 5 mm (0.20 in.), the high-energy density processes are the most efficient. PAW, for producing welds up to about 15 mm (0.6 in.) thick, and EBW, which can readily generate single-pass welds...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930353
EISBN: 978-1-62708-359-1
... growth in the HAZ and fusion zones, a high-energy-density welding process, such as EBW, is often more advantageous than GTAW. Effect of Welding Conditions The alloy Nb-1Zr can be easily welded using arc welding and EBW processes. The alloy B-66 has a hot tearing tendency during arc welding, which...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700215
EISBN: 978-1-62708-279-2
... welding of AHSS. Fig. 14.1 Geometric features of a spot weld. Source: Adapted from Ref 14.4 Results of the resistance welding performance study are ( Ref 14.4 ): Advanced high-strength steels have higher static tensile shear strength, impact tensile peak load, and energy absorption...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000167
EISBN: 978-1-62708-312-6
... to their relatively poor thermal diffusivity (defined as thermal conductivity divided by specific heat and density) and thier greater coefficient of thermal expansion. Steeper thermal gradients resulting from low thermal diffusivity can produce a high degree of thermal stress, which in turn can lead to weld cracking...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720233
EISBN: 978-1-62708-305-8
..., or flakes. (e) When calibrated using special thickness gages. Source: Ref 1 Radiography can be used to inspect most types of solid material, with the possible exception of assemblies containing materials of very high or very low density. Neutron radiography, however, often can be used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... and lose coherency with the matrix. These property effects are shown in Fig. 5.9 . The strength loss can be minimized by minimizing the heat of welding through selection of a high-energy-density process or a very fast heating process during welding. An additional method is to weld the alloy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930197
EISBN: 978-1-62708-359-1
... and embrittlement Unfavorable cooling rate in the weld metal or heat-affected zone (HAZ) High residual stresses Environmental conditions not contemplated in the design of the weld. These comprise accidental overload, continual loads higher than intended, fatigue, abnormal temperatures, and marine or other...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930085
EISBN: 978-1-62708-359-1
...-particle testing of a weld with an electromagnet Prod magnetization, in which electrodes carrying a high-amperage, low-voltage current are pressed onto the test surface to induce a distorted, circular magnetic field, provides the most controlled method of magnetization. Although the electrodes can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410113
EISBN: 978-1-62708-265-5
... that conference ( Ref 7.2 ). The development of low-carbon, high-strength low-alloy (HSLA) steels for U.S. Navy ship plate applications has also stimulated evaluation of unique ferritic microstructures in low-carbon steels ( Ref 7.3 ). Also, in view of the low-carbon content of weld metal and weldable steels...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550001
EISBN: 978-1-62708-307-2
... into service. 1.1 Today’s Lightweight Materials The distinguishing feature of the materials covered in this book is that they all have low densities. Densities range from as low as 0.80 g/cm 3 (0.030 lb/in. 3 ) for unfilled polymers to as high as 4.5 g/cm 3 (0.160 lb/in. 3 ) for titanium. While...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290001
EISBN: 978-1-62708-306-5
... 25Cr-1Mo steel plate, single-pass electron beam weld. Macrostructure shows high depth-to-width ratio of the fusion zone, which is typical of high-energy-density welding processes. Source: Ref 1.3 1.3 Solid-State Welding Since solid-state welding processes do not involve melting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720001
EISBN: 978-1-62708-305-8
... in absorption of a few percent compared with the surrounding material can be detected. Ultrasonic Inspection Ultrasonic inspection is a nondestructive method in which beams of high frequency acoustic energy are introduced into a material to detect surface and subsurface flaws, to measure the thickness...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170003
EISBN: 978-1-62708-297-6
... of aluminum oxide particles in the copper matrix, exhibit higher strength and stability at elevated temperature. Dispersion-strengthened nickel-base alloys are produced by high-energy ball milling yttria (Y 2 O 3 ) powder and the nickel-base alloy powder together ( mechanical alloying ). The improved elevated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720411
EISBN: 978-1-62708-305-8
... that are welded from one side, such as pipe joints. It appears on the radiograph as a darker region than the base metal. If weld reinforcement is too high, the radiograph shows a lighter line down the weld seam. There is a sharp change in image density where the reinforcement meets the base metal. Weld...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290085
EISBN: 978-1-62708-319-5
..., such as carbon content, particle size, or packing density. Such testing carried out during mixing of iron, graphite, and stearate lubricants found carbon variation during the early stages of mixing was quite high. However, after 10 min of mixing, the behavior stabilized. Thus, mixing time must be sufficient...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
... properties. Distortion can cause difficulties in the final assembly and operation of high-tolerance aerospace systems. Thus, the use of high-energy-density welding processes to produce full-penetration, single-pass autogenous welds rather than multiple conventional arc welding may be desirable to minimize...