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high-velocity metal forming

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
... blanking, forming, and drawing of sheet metal, but hydraulic presses are being used increasingly. For some applications, hydraulic presses offer certain advantages, and in some cases, they are the only machines that can be used. For example, very high force requirements can only be met with hydraulic...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003971
EISBN: 978-1-62708-185-6
... large quantities to satisfy the demand for metal products. A need arose for forging equipment with larger capacity. This need was answered with the invention of the high-speed steam hammer, in which the hammer is raised by steam power, and the hydraulic press, in which the force is supplied by hydraulic...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004028
EISBN: 978-1-62708-185-6
... such direction. The usually observed planes are {110} and {112}, and each contributes 12 crystallographically equivalent systems ( Fig. 1b ). Additional slip on other planes may be present at high temperature (pencil glide). Propagating dislocations on slip systems requires the resolved shear in the...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... greater than 0.5 T m , the hot-working range. Three principal benefits accrue from hot working. First, because the flow stress is lower at higher temperatures, it offers an economical method for size reduction of large workpieces. Second, metals at high temperatures are generally capable of achieving...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004014
EISBN: 978-1-62708-185-6
... heating by the localized shear. This unstable situation becomes more likely during high-speed forming of low-ductility materials such as titanium. Therefore, it is necessary to control the roller carriage axial velocity and the rotational velocity of the mandrel in order to create the some adiabatic...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.9781627081863
EISBN: 978-1-62708-186-3
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003053
EISBN: 978-1-62708-200-6
... Abstract Ceramic-forming processes usually start with a powder which is then compacted into a porous shape, achieving maximum particle packing density with a high degree of uniformity. This article compares and contrasts several forming processes, including mechanical consolidation, dry...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004021
EISBN: 978-1-62708-185-6
... cross rolled between two barrel-shaped rolls at a high speed, as shown in Fig. 4 . The updated Lagrangian approach was first used in the investigation. Due to the dominantly rotational velocity field, the time-step size is limited to a small value, and the whole part must be modeled for better solution...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005238
EISBN: 978-1-62708-187-0
... their complex-shaped domains and high turbulence. To compute just the large-scale flow features, turbulence models are used that increase the liquid viscosity according to different models of the small-scale phenomena. These models include the simple “mixing-length” models, the two-equation models such...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005950
EISBN: 978-1-62708-166-5
... shafts specific heat thermal properties ALMOST ALL HIGH-PERFORMANCE ENGINEERING COMPONENTS are heat-treated at least once during their manufacturing chain—either at the end of production before assembly to meet the physical property requirements during service, or at intermediate stages of...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001296
EISBN: 978-1-62708-170-2
... corrosion protection techniques have been developed (e.g., conversion coatings, organic coatings, and metallic thin and thick films). These techniques introduce a new system property, the coating-substrate behavior. The major requirements for good corrosion protection are high corrosion resistance of the...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005224
EISBN: 978-1-62708-187-0
... produces high-integrity castings currently attainable only with squeeze or low-pressure permanent mold casting. Semisolid metal processing offers several distinct advantages over conventional near-net shape forming technologies. These advantages include low manufacturing cycle time, increased die life...
Book Chapter

By Ted Kostilnik
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001235
EISBN: 978-1-62708-170-2
... process has other useful applications, such as relieving tensile stresses that contribute to stress-corrosion cracking, forming and straightening of metal parts, and testing the adhesion of silver plate on steel. When individual particles of shot in a high-velocity...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005227
EISBN: 978-1-62708-187-0
... combine high specific strength and stiffness with a near-zero coefficient of thermal expansion and high electrical and thermal conductivities. Wetting and bonding between the fiber and the metal in these systems is induced by the deposition of a thin layer of titanium and boron or SiO 2 onto the fibers...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005351
EISBN: 978-1-62708-187-0
... filter to the actual mold cavity, turbulence will increase. For this reason, anything that would increase the metal stream velocity postfilter should be avoided. This can include, but is not limited to, a choke postfilter, a further metal drop, a high-aspect-ratio runner (i.e., a runner that is...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006478
EISBN: 978-1-62708-190-0
... composites. Automated scanners are employed that acquire TT, PE, or combined ultrasonic measurements over an entire structure at high speed. Automated ultrasonic scanning systems take many forms and sizes. They range from small tabletop immersion tanks to large overhead gantry systems. Figure 3 shows a...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005352
EISBN: 978-1-62708-187-0
... Volume). However, the reactivity of metals and the high temperatures of melting also introduce the deleterious effects of dissolved gases and inclusions in molten metals, as described in the articles “Gases in Metals” and “Inclusion-Forming Reactions” in this Volume. Of primary...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006258
EISBN: 978-1-62708-169-6
... properties metal-matrix composites microstructure Magnesium-matrix composites are very promising as structural materials because of their low density, high specific strength, and excellent castability. Magnesium alloys are currently the lightest-weight structural alloys available in...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005401
EISBN: 978-1-62708-196-2
... selected {110} slip planes in the beta phase, thus biasing the secondary-alpha variants that are formed. Fig. 22 Comparison of (0001) alpha-phase pole figures for Ti-6Al-4V plate that was heat treated high in the alpha + beta phase field and then rapidly cooled. (a) Measured. (b) Predicted assuming...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001277
EISBN: 978-1-62708-170-2
... High gloss, flexibility, good durability, versatility Poor alkali resistance, generally not hard, tendency to yellow, depending on resin Low, moderate Trade sales enamels, trim paints, exterior enamels, general metal finishing Chlorinated rubber Solvent Air dry Water, alkali, acid resistance...