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blow forming

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Published: 01 November 2013
Fig. 36 Schematic of the blow forming technique for superplastic forming. Source: Ref 22 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040193
EISBN: 978-1-62708-300-3
... accuracy using computational tools prior to committing the forging to shop trials. Some of the proven practical applications of process simulation in closed-die forging include: Design of forging sequences in cold, warm, and hot forging, including the prediction of forming forces, die stresses...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730139
EISBN: 978-1-62708-283-9
... Abstract This chapter describes the processes, applications, and limitations of forming and shaping various materials. It discusses bulk forming, hot working, cold working, sheet forming, and polymer and powder processing. bulk forming cold working hot working polymer processing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040115
EISBN: 978-1-62708-300-3
... successive blows. Fig. 11.26 Load-energy relationships in forming in a press. E p , energy required by process; L M , maximum machine load; E d , elastic deflection energy; d, press deflection. (a) With energy or load metering. (b) Without energy or load metering In a screw press, which...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430314
EISBN: 978-1-62708-253-2
.... It discusses the erosive effect of blowing soot, steam, and fly ash as well as coal particle impingement and falling slag. It also includes several case studies. boiler tubes coal-particle impingement falling slag fire-side erosion fly ash attack soot blowing steam cutting action Erosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780064
EISBN: 978-1-62708-281-5
..., rotational molding produces a hollow product. Unlike blow molding, however, rotational molding is a relatively slow process that begins with plastic in the form of a powder, not a parison. The advantage of rotational molding is that it can produce large objects, with capacities from 1 to more than 500 gal...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740163
EISBN: 978-1-62708-308-9
... gas flows create a high-velocity plasma gas jet that is used to melt the metal and blow it away to form a kerf. All plasma arc torches constrict the arc by passing it through an orifice as it travels away from the electrode and toward the workpiece. As the orifice gas passes through the arc...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220009
EISBN: 978-1-62708-259-4
... the evolution of refining reactions in a typical oxygen converter. The main reactions taking place are oxidation reactions, which occur because of the oxygen blow, and those involving the slag, formed by lime added to the charge, in combination with oxidation products. Fig. 2.7 Evolution of liquid metal...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200187
EISBN: 978-1-62708-354-6
....” The method used to determine the category of lining is by the basicity (V) of the slag formed on the metal surface. Where: V = % CaO + % MgO % SiO 2 a ratio of less than one is considered acid, more than one is basic, and approximately one is neutral. While it is essential...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780028
EISBN: 978-1-62708-281-5
... and metals or ceramics is that plastics can be melted at relatively low temperatures and formed into a variety of shapes. Advantage can be taken of their non-Newtonian flow behavior in selecting a suitable molding or finishing process. Atoms can be specifically selected to design a polymer with the desired...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400087
EISBN: 978-1-62708-258-7
... flowing water, followed by an alcohol rinse and blow drying. Etching: Not required Observation: Examine the specimen in a microscope and take several photographs of the shot morphology. Results: A typical example is shown in Fig. 4.14 . The shot is in the form of fairly uniformly rounded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320011
EISBN: 978-1-62708-332-4
... using the thermosetting property of resins by blowing phenolic resin–coated sands into heated core boxes to form a shell. The uncured sand is drained back into the investment magazine for reuse. These cores have a very long shelf life, and they produce castings to a very fine finish. The hollow shell...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550325
EISBN: 978-1-62708-307-2
... of being formed into load-bearing shapes and possessing properties that enable it to be used in the same manner as traditional materials, and that has high-performance properties that permit it to be used in the same manner as metals and ceramics. This definition includes thermoplastic and thermoset resins...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250129
EISBN: 978-1-62708-345-4
... Abstract Gear manufacture depends on machinery available, design specifications or requirements, cost of production, and type of material from which the gear is to be made. This chapter discusses the processes involved in methods for manufacturing gears, namely casting, forming, and forging...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740103
EISBN: 978-1-62708-308-9
.... Secondary processes, which are used to produce the final product shape, are conducted either hot or cold. Some secondary processes, such as sheet forming, do not involve large amounts of deformation. Hot working processes are conducted at temperatures above the recrystallization temperature, which...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040107
EISBN: 978-1-62708-300-3
... and the press run would stop before reaching the bottom dead center position. If the condition expressed by the latter inequality ( Eq 10.2 ) is not satisfied, either the flywheel will slow down to unacceptable speeds in a mechanical press or the part will not be formed completely in one blow in a screw press...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 May 2018
DOI: 10.31399/asm.tb.hma.t59250001
EISBN: 978-1-62708-287-7
.... Bellows, a device used for blowing air into a fire, were used to raise the temperature. With further refinements, this process was used for many centuries to produce what we call “ wrought iron .” During the many early years that humans used iron, wrought iron was the dominant form. It could be worked hot...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370167
EISBN: 978-1-62708-447-5
... Competitive costs for high-volume production (about 200,000 pieces per year) The limitations of this process include: The inability to use profiled sand cores, which limits the scope of die casting for hollow configurations. Straight hollow passages can be formed using a metal pin insert that can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870255
EISBN: 978-1-62708-314-0
... on the inside. Sandwich structure can be fabricated by first curing the separate composite details and then adhesively bonding them to form a completed assembly. Alternatively, in cocuring, the skins are cured at the same time that they are bonded to the interior sandwich. A third option is a cocured, unitized...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780164
EISBN: 978-1-62708-281-5
... Abstract This article discusses electrical testing and recommended procedures for determining the electrical properties of insulating materials, with particular emphasis on plastics. It describes the electrical characteristics of various forms of plastics and also presents definitions...