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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270160
EISBN: 978-1-62708-301-0
...Abstract Abstract The nose bullet of an aircraft engine developed a crack and was removed and examined to determine the cause. The bullet was made from a titanium alloy and was of welded construction. Close-up views show that the crack originated in an area of rework along the weld seam...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290061
EISBN: 978-1-62708-306-5
... processes, namely resistance spot welding, resistance seam welding, projection welding, flash welding, and upset welding. flash welding projection welding resistance seam welding resistance spot welding upset welding RESISTANCE WELDING is a group of processes in which the heat for welding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980141
EISBN: 978-1-62708-342-3
... the characteristics of pure metals and alloys at higher temperatures. The processes involved in extrusion are then covered. The chapter provides details on how the toughness and fracture characteristics of metals and alloys affect the extrusion process. The weld seams in hollow profiles, the production of composite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050175
EISBN: 978-1-62708-311-9
... initiated from rolling seam. (i) SAE type 403 stainless steel as quenched and tempered; microstructure is predominantly tempered martensite with cracking promoted by the seam. Vilella’s reagent. 100×. (j) SAE 4118 carburized steel as quenched and tempered; microstructure is tempered martensite with quench...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720321
EISBN: 978-1-62708-305-8
..., or other conditions that may nullify acceptability of the material. The term also encompasses such terms as pipe, porosity, laminations, slivers, scabs, pits, embedded scale, cracks, seams, laps , and chevrons , as well as blisters and slag inclusions in hot rolled products. For products...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.9781627083119
EISBN: 978-1-62708-311-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130255
EISBN: 978-1-62708-284-6
... recommended material removal from hot rolled steel products to prevent surface seam and nonmetallic stringer problems during heat treatment Table 7 Minimum recommended material removal from hot rolled steel products to prevent surface seam and nonmetallic stringer problems during heat treatment...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900089
EISBN: 978-1-62708-350-8
... time for heatup. The hot-wall heatup of the port is usually about 15 times faster. Why pulse the power input? With a constant voltage input, there is a constant heat output. Reducing voltages to reduce temperature changes the current density and the cathode fall voltage distance (glow seam...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270059
EISBN: 978-1-62708-301-0
... to a defect in the ERW seam weld and corrosion. On Dec. 24, 1988, in Missouri, a pipeline carrying oil burst without warning and 800,000 gallons of crude oil spilled into the Missouri River, causing a major ecological problem. The pipeline was constructed in 1949, using ERW pipes. Here again, the failure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720345
EISBN: 978-1-62708-305-8
..., aluminum, nickel, titanium, and zirconium, can be inspected for cracks, seams, splits, and other flaws. Eddy current inspection is the method most widely used, followed by the ultrasonic and liquid penetrant methods. Eddy Current Inspection This chapter was adapted from Nondestructive Inspection...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900185
EISBN: 978-1-62708-350-8
... uniformity within the process retort, be it gas or plasma nitriding, is mandatory. If the plasma glow seam provides only partial coverage, the portion of the workpiece that is not covered by the glow will not be nitrided. Partial coverage is caused by a process chamber pressure that is too high toward...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720365
EISBN: 978-1-62708-305-8
... of inspecting forgings used for common hardware items. Under proper lighting conditions, the trained eye can detect several types of surface imperfections, including certain laps, folds, and seams. Visual inspection is often used first then questionable forgings are further examined by macroetching...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900071
EISBN: 978-1-62708-350-8
... of the process chamber pressure will determine the area of glow on the steel surface. If the pressure is too high (i.e., toward atmospheric pressure), then the glow seam that surrounds the part will become intermittent. Where there is no glow on the steel surface, there will be no nitride formation. This means...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... up highly stressed areas. (h) Seams that develop from elongated trapped-gas pockets or from cracks during working. (i) Laps when excessive material is squeezed out and turned back into the material. (j) Chevron or internal bursts. Source: Ref 2 Fig. 8 Typical forging defects. Seam...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130087
EISBN: 978-1-62708-284-6
... Oxide layer along a seam most likely present in the raw material. Original magnification: 50×. Inset original magnification: 200× Fig. 27 A few coarse grains in the core of a fine-grained material that has been carburized are the only portion of the core able to form martensite. Original...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
... Strip Forming Seam Guide Squeeze Rolls Work Coil and Impeder Frequency Selection Power Selection Some typical induction surface hardened steels are: As with other induction heating applications, selection of frequency and power level are the two prime factors in power-supply...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490183
EISBN: 978-1-62708-340-9
... generally are extruded, although for large-diameter piping, plate-formed and seam-welded piping have been employed in some designs. Forgings are used as reinforcing rings around nozzles and openings, fittings, valves, and flanges. Castings are used only occasionally as valve or pump bodies, where the ease...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900139
EISBN: 978-1-62708-350-8
... A significant development in process gas control analysis can be credited to N. Ryzhov of Moscow State University, who developed what appeared to be a workable control system of the gas species activity of the plasma glow seam ( Ref 1 ). The work, which has not yet been commercialized, is based...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820077
EISBN: 978-1-62708-339-3
... Tube Tube-to-Header Joint Header Base Metal Seam Weld Weld HAZ Tube HAZ Weld Metal Header HAZ Base Metal 178 HK500 202 HV500 199 HV500 317–350 HK500 218 HK500 238 HK500 210 HK500 85 HRB 93 HRB 93 HRB 31–35 HRC 93 HRB 97 HRB 92 HRB Fig. 14 Time-temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
... use inert gas Electron beam Hard vacuum excellent Resistance spot and seam Excellent Flash Excellent Diffusion Excellent Pressure Excellent Friction stir welding Excellent Oxyacetylene flame Not applicable Shielded metal arc Not applicable Submerged arc Further...