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Hot tears

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Published: 01 November 2012
Fig. 11 Redesign of a casting to eliminate hot tears. Mold restraint coupled with nonuniform freezing of the various sections of this aluminum alloy 356 casting resulted in hot tears. Moving the wall and increasing its thickness corrected the problem. Part dimensions in inches. Source: Ref 7 More
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Published: 01 January 2022
Fig. 12.134 Potential causes of hot tears More
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Published: 01 January 2022
Fig. 12.80 Cement ball mill trunnion with hot tear resistance ribs More
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Published: 01 January 2022
Fig. 12.81 Hot tear resistance brackets under the feeder base More
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Published: 01 January 2022
Fig. 12.135 Draft gear hot tear resolution More
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Published: 01 January 2022
Fig. 12.136 Hot tearing resolution of axle body housing More
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Published: 01 July 1997
Fig. 2 Schematic showing peak hot tearing susceptibility behavior of aluminum alloys as observed when conducting weldability or castability tests More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... inspection. Casting defects including porosity, oxide films, inclusions, hot tears, metal penetration, and surface defects are reviewed. Liquid penetrant inspection, magnetic particle inspection, eddy current inspection, radiographic inspection, ultrasonic inspection, and leak testing for castings...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930283
EISBN: 978-1-62708-359-1
... Abstract This article reviews weldability of aluminum alloys and factors that affect weld performance. It first addresses hot tears, which can form during the welding of various aluminum alloys. It then presents comparison data from different weldability tests and discusses the specific...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000111
EISBN: 978-1-62708-313-3
... is hafnium, which improves ductility, thus reducing hot tearing during solidification. Tantalum also reduces hot tearing, whereas high levels of chromium increase hot tearing. The main drawback to adding hafnium is that it is a very reactive element that attacks mold materials and furnace linings, leading...
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Published: 01 August 2018
Fig. 14.44 Transverse cross section of an experimental electroslag weld of two forged blocks of AISI 1045 steel. The weld was sectioned along the axis of the weld deposit (MD), so only a single block of base metal (MB) can be seen. Hot tears close to the weld axis can be observed. Porosity More
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Published: 01 November 2012
Fig. 9 Typical casting defects. (a) Inclusion (arrow) on machined surface of a casting. (b) Typical micrograph of gas porosity. Original magnification: 100×. (c) Micrograph of low-alloy steel shrinkage crack. Original magnification: 7.5×. (d) Optical micrograph of a hot tear in a casting More
Image
Published: 01 April 2013
Fig. 1 Typical casting defects. (a) Inclusion (arrow) on machined surface of a casting. (b) Typical micrograph of gas porosity. Original magnification: 100×. (c) Micrograph of low alloy steel shrinkage crack. Original magnification: 7.5×. (d) Optical micrograph of a hot tear in a casting More
Image
Published: 01 November 2013
Fig. 9 Typical casting defects. (a) Inclusion (arrow) on machined surface of a casting. (b) Typical micrograph of gas porosity. Original magnification: 100×. (c) Micrograph of low-alloy steel shrinkage crack. Original magnification: 7.5×. (d) Optical micrograph of a hot tear in a casting More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200115
EISBN: 978-1-62708-354-6
...-12 . This outlines the proper proportions between the thicknesses of the joined members, the fillet radii at the junction, and the taper required. Following these rules will reduce foundry problems such as shrinkage and also will reduce the tendency for hot tears. “Y” junctions are similar to “T...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
... forging Cracking —occurs when the imposed equivalent plastic strain exceeds the material capability at the temperature of operation—surface (hot tears), cooling (centerline cracking) Product underfill —underachieved thickness goal, inadequate material displacements, poor 3-D flow, inability...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930071
EISBN: 978-1-62708-359-1
.... Colloquially, these four defect types are known as hot cracks, heat-affected zone microfissures, cold cracks, and lamellar tearing. cold cracks fusion welding heat-affected zone hot cracks lamellar tearing welded assemblies THE FORMATION OF DEFECTS in materials that have been fusion welded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320217
EISBN: 978-1-62708-332-4
... Strength Hardness Ductility Toughness Corrosion resistance Creep Hardenability Weldability Chrome Ferrite stabilizer Chromium >12.8% Austenite disappears Improves Improves hot hardness … … Improves room temperature and high temperature corrosion resistance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... performance and the effect of casting design on the tendency for discontinuities to form during the casting process. Important types of casting discontinuities include porosity, inclusions, oxide films, second phases, hot tears, metal penetration, and surface defects. A number of typical casting defects...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410253
EISBN: 978-1-62708-280-8
... alternate mold cavities Fig. 10.4 Tensile test bars, hardness and microstructure locations 10.4.2 Test Procedures and Requirements Visual Inspection All castings will be visually inspected in heat-treated condition and before packing. The casting surfaces must be free from hot tears...