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mechanical stress relief methods

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Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002493
EISBN: 978-1-62708-194-8
... with a discussion on the operations involved in thermal and mechanical stress-relief methods. distortions finite element method mechanical stress relief methods residual stress thermal stress-relief methods ALL THERMO-MECHANICAL manufacturing processes—such as forging, extrusion, casting, heat...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005782
EISBN: 978-1-62708-165-8
... be classified into three broad categories: thermal, chemical, and mechanical ( Ref 9 )—including the more recent mechanical method of vibratory stress relief (especially in the subresonant region). Chemical and mechanical methods are not discussed here. Thermal stress-relief methods include, among others...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003329
EISBN: 978-1-62708-176-4
... residual stress. In these cases, procedures or methods that provide measurement of stresses through the cross section are more relevant than spatial resolution. It is extremely important that the investigator understand the mechanism for the inducement of the residual stress field of concern. Most...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005506
EISBN: 978-1-62708-197-9
... behavior and trivial loading and boundary conditions. The article discusses approximate and advanced solution techniques that can be employed in practice for simulation of residual stress relief: finite-difference method and finite-element method. It also describes advanced techniques applicable...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005945
EISBN: 978-1-62708-168-9
... Hardness Measurement Silicon Content Matrix Carbon Content Quenching Heat, Soak, Hold Rate Cooling Temperature Surface Cleaning Causes of Residual Stresses Stress-Free, As-Cast Castings Testing for Residual Stress Stress Relief Other Stress-Relief Methods Flame Heating...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006286
EISBN: 978-1-62708-169-6
... of β alloys.) No significant changes in microstructure due to stress-relief heat treatment can be detected by optical microscopy. The only nondestructive testing method that can measure the efficiency of a stress-relief cycle is direct measurement of residual stresses by x-ray diffraction. When...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006252
EISBN: 978-1-62708-169-6
... Mechanics to Materials and Structures , Sih G.C. , Sommer E. , and Dahl W. , Ed., Springer Netherlands , 1984 , p 157 – 192 10.1007/978-94-009-6146-3_7 5. Kleint R.E. and Janney F.G. , Stress Relief in Aluminum Forgings , Light Met. Age , Vol 2 , 1958 , p 14...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006561
EISBN: 978-1-62708-290-7
... components due to harmful reactions of loose powder hidden in blind holes of the build plate blown throughout the furnace during the vacuum evacuation Fig. 2 Illustration of the effect of a stress-relief heat treatment on strain in laser-melted iron parts. Source: Ref 3 Fig. 3...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006283
EISBN: 978-1-62708-169-6
... furnaces hydrogen embrittlement mechanical properties quenching scaling solution heat treatment straightening stress-relief anneal titanium titanium alloys TITANIUM ALLOYS are classified into three groups with the following properties: Alpha alloys Non-heat-treatable...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006296
EISBN: 978-1-62708-179-5
.... Other Stress-Relief Methods Weathering The storing of castings for several months while exposed to the weather has been used for the purpose of stress relieving. Before the availability of casting cleaning machines, it was common to rust the adhering sand and hard scale off of iron castings...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006282
EISBN: 978-1-62708-169-6
... to the recrystallization, grain-growth process, and the effects of time and temperature on stress relief. It describes the factors that influence the rate of recrystallization and the conditions required for neocrystallization to occur. The article explains the mechanism of strain hardening and its effects...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005979
EISBN: 978-1-62708-168-9
... several times between the extremes of temperature likely to be encountered in service. Using lower than the minimum or higher than the maximum service temperature may be even more beneficial provided that mechanical properties are not impaired. A major effect of cycling is stress relief, which reduces...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003384
EISBN: 978-1-62708-195-5
... describes the two-dimensional effects associated with load redistribution around flaws and with damage tolerance. The elastic-isotropic geometric stress-concentration factors and empirically established correlation factors of mechanically fastened joints are discussed. The article provides information...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002355
EISBN: 978-1-62708-193-1
... structures and surface relief and reviews the mechanisms of crack nucleation. The damage of material due to crack nucleation, the extent (in terms of the number of cycles) of the nucleation stage, and the factors influencing crack nucleation are discussed. crack nucleation dislocation structure...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005822
EISBN: 978-1-62708-165-8
...Abstract Abstract Cold treating of steel can be used to enhance the transformation of austenite to martensite and improve the stress relief of castings and machined parts. Cryogenic treatment of steel is a distinct process that uses extreme cold to modify the performance of materials...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005953
EISBN: 978-1-62708-168-9
... relieve the product. A stress relief of 675 °C (1250 °F) may be applied to relieve mechanical stress. Double austenitize, first at 870 to 900 °C (1600 to 1650 °F), hold 1 h for each 25 mm (1 in.) of thickness; oil, water, or air cool depending on section size; reaustenitize at 800 to 815 °C (1475...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006733
EISBN: 978-1-62708-210-5
... in.) thick ( Ref 4 ). Relief of quenching stresses for all products except die forgings, wire, rod, and rivets is accomplished by plastic deformation of 1 to 5%, depending on the product form. Physical properties of alloy 7050 are given in Table 2 , and typical mechanical properties of plate, forgings...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005146
EISBN: 978-1-62708-186-3
... be extensively overformed or hot sized after cold forming. Aging or stress-relief operations are usually conducted on titanium alloys that are cold formed. Straightening can be done during the aging or stress-relief cycle with proper tools. Hot forming does not greatly affect final properties. Forming...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005167
EISBN: 978-1-62708-186-3
... formability and ductility. The finish rolling of molybdenum and tungsten is done at high temperature, and final heat treatment is usually for stress relief only. Cross-rolled sheet is generally more formable, because cross rolling promotes planar isotropy desired for uniform deformation. Heat Treatment...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005942
EISBN: 978-1-62708-168-9
... Classes of Gray Iron Stress Relief Examples of Stress Relief Annealing Normalizing Transformation Hardening Quenched and Tempered Properties Austempering Martempering Flame Hardening Induction Hardening Other Surface-Hardening Methods Rate of Heating Rate of Cooling...