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electromagnetic welding

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Published: 01 July 1997
Fig. 2 Magnetic-particle testing of a weld with an electromagnet More
Image
Published: 01 October 2011
Fig. 7.27 Electromagnetic yoke, showing position and magnetic field to detect discontinuities parallel to a weld bead. Discontinuities across a weld bead can be detected by placing the contact surfaces of the yoke next to and on either side of the bead (rotating yoke about 90° from position More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220001
EISBN: 978-1-62708-341-6
... Abstract Electromagnetic induction, or simply "induction," is a method of heating electrically conductive materials such as metals. It is commonly used for heating workpieces prior to metalworking and in heat treating, welding, and melting. This technique also lends itself to various other...
Image
Published: 01 April 2013
Fig. 7 Electromagnetic yoke, showing position and magnetic field to detect discontinuities parallel to a weld bead. Discontinuities across a weld bead can be detected by placing the contact surfaces of the yoke next to and on either side of the bead (rotating yoke about 90° from position shown More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500227
EISBN: 978-1-62708-317-1
... of separable coils to allow the joining of closed structures ( Ref 11.14 , 11.41 ). The problem here is that welding effects caused by the high current density must be avoided. An example of a separable tool coil is shown in Fig. 11.15 . Fig. 11.15 Principle of electromagnetic compression using...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720345
EISBN: 978-1-62708-305-8
... sensitivity. One solution involves the use of a series of small probe coils, staggered with respect to the weld line, to ensure continuous coverage. The problem has also been solved in some installations by taking advantage of the electromagnetic difference that exists between the weld zone and the base metal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720001
EISBN: 978-1-62708-305-8
... of the inspection methods that will be covered in the remainder of this book. Visual Inspection Visual inspection provides a means of detecting and examining a variety of surface flaws, such as corrosion, contamination, surface finish, and surface discontinuities on joints (for example, welds, seals...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... tumbling Removing light scale, burrs, welding flux, braze stopoff, rust, casting mold, and core material; should not be used on soft metals such as aluminum, magnesium, and titanium Dry abrasive grit blasting Removing light and heavy scale, flux, stopoff, rust, casting mold and core material, sprayed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140201
EISBN: 978-1-62708-264-8
... as an example. A Chromel wire is welded to an Alumel wire, and the weld bead is placed at the location in a furnace where temperature is to be measured. Chromel is the trade name for an alloy made up of nickel plus chromium, and Alumel for an alloy that is mostly nickel. Electrical leads, often made from copper...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780131
EISBN: 978-1-62708-268-6
... Abstract Leaks can occur as the result of several failure causes. This chapter reviews the causes, features, and impact of various types of leaks, namely gasket leaks, O-ring leaks, bond-joint leaks, weld leaks, polyvinyl chloride leaks, valve leaks, and structural leaks. bond-joint leaks...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930085
EISBN: 978-1-62708-359-1
... is the preferred method for detecting surface-breaking and, under certain circumstances, near-surface flaws in situations where a test material can be magnetized. This method depends on the flaw disrupting the magnetic flux generated along the surface of the weld by a permanent magnet or electromagnets...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930311
EISBN: 978-1-62708-359-1
... and limited. During the past decade, efforts have continued into the grain refinement of titanium alloy welds. This work has involved principally the application of electromagnetic stirring (EMS) and inoculation of the molten weld pool, or a combination of these two techniques ( Ref 4 ). Solidification...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720321
EISBN: 978-1-62708-305-8
... inspection, ultrasonic inspection, and electromagnetic inspection. Eddy current and magnetic permeability are also covered. electromagnetic inspection eddy current system flaws liquid penetrant inspection magnetic particle inspection steel bar steel wire ultrasonic inspection visual inspection...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870183
EISBN: 978-1-62708-314-0
... composites can be joined by melt fusion, dual resin bonding, resistance welding, ultrasonic welding, or induction welding, as well as by conventional adhesive bonding and mechanical fastening. Adhesive Bonding In general, structural bonds using thermoset such as epoxy adhesives produce lower bond...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930003
EISBN: 978-1-62708-359-1
.... Convection in the weld pool is driven mainly by buoyancy, electromagnetic, and surface tension forces. Significant work has concentrated on the convective heat transfer and, in particular, the effect of the spatial variation of surface tension (surface tension gradient) on fluid flow and weld penetration...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720411
EISBN: 978-1-62708-305-8
... Abstract Weldments made by the various welding processes may contain discontinuities that are characteristic of that process. This chapter discusses the different welding processes as well as the discontinuities typical of each process. It provides a detailed discussion on the methods...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820077
EISBN: 978-1-62708-339-3
..., is their excellent stress-corrosion cracking resistance and good resistance to pitting and crevice corrosion in chloride environments. This chapter provides information on the classifications, properties, and general welding considerations of ferritic stainless steels. The emphasis is placed on intergranular...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220519
EISBN: 978-1-62708-259-4
... and show good correlation when compared with experimental results. AISI 4145 Steel AISI 4145 steel is a common choice for drill columns in oil fields. It is normally used in the quenched and tempered condition. When necessary, these columns are friction welded, with good results. Figures 15.12...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720233
EISBN: 978-1-62708-305-8
.... Three primary attenuation processes of electromagnetic radiation, namely photoelectric effect, Compton scattering, and pair production, are covered. The chapter then discusses the principles of shadow formation, the process involved in the conversion of radiation into a form suitable for observation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120065
EISBN: 978-1-62708-269-3
... Abstract This chapter covers the welding characteristics of titanium along with the factors that determine which welding method is most appropriate for a given application. It discusses the joinability of titanium alloys, the effect of heat on microstructure, the cause of various defects...