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quick plastic forming

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Published: 01 January 2006
Fig. 3 Schematic illustration of the quick plastic forming cell used for the high-production superplastic forming of aluminum-magnesium sheet alloys in the automotive industry. Source: Ref 5 More
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Published: 01 January 2006
Fig. 45 Operating process for purpose-built quick plastic forming cell More
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Published: 01 January 2006
Fig. 46 The quick plastic forming (QPF) process can be run with integrally heated dies as for warm forming applications. More
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005147
EISBN: 978-1-62708-186-3
... drawing, superplastic forming/diffusion bonding, forging, extrusion, and dieless drawing. It provides information on superelastic forming equipment and tooling. The article explains the thinning characteristics and quick plastic forming and its technological elements. It describes the manufacturing...
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Published: 30 November 2018
Fig. 19 Deformation mechanism map of aluminum alloy 5083 with superplastic forming, quick plastic forming, and hot stamping. GBS = grain boundary sliding, SD = slip deformation, PLB = persistent Lüders, or slip, bands. Source: Ref 10 More
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005100
EISBN: 978-1-62708-186-3
... ) and somewhat lower temperatures. Perhaps the largest-volume use of the new approaches is that recently introduced by General Motors for the forming of 5083 aluminum-magnesium alloy sheet and referred to as quick plastic forming (QPF) ( Ref 5 , 6 ). As in other SPF techniques, SPF shaping usually involves...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006527
EISBN: 978-1-62708-207-5
... operations on aluminum and its alloys. During plastic forming of metals, most of the work is converted to heat, but some of energy is stored in the microstructure in the form of dislocations that cause hardening. For aluminum alloys, the stored energy per unit volume due to plastic strain (ε) for deformation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... (Rockwell B range) in ASTM International E 140 are the approximate conversion tables for nonaustenitic steels. These data are commonly reproduced in large, poster-sized wall hangings by hardness-testing companies or in small plastic cards used for quick reference. Sometimes these reproductions state...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006868
EISBN: 978-1-62708-395-9
... of modern materials, the breadth of potential solutions (via part and/or component or assembly design) provided through the use of plastics is second to none. A quick review of the UL Prospector Plastics Database shows an incredible 85,000 or so formulations of plastic materials available. In addition...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005154
EISBN: 978-1-62708-186-3
... at the corners due to greater deformation in these regions. The effects of process parameters (tool size, feed rate, plastic anisotropy) on formability during incremental forming have also been determined ( Ref 17 ). The formability of aluminum sheet under various forming conditions is considered in Ref 18...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003016
EISBN: 978-1-62708-200-6
... reduction, and/or cost reduction. Machinery and Processing Methods Extrusion blow molding is the primary processing method used for engineering thermoplastics today. The process forms a hollow tube of molten plastic material called a parison. The parison formation is either continuous or intermittent...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005672
EISBN: 978-1-62708-198-6
.... There are several treatment methods available to modify polymer surfaces and effectively increase their surface energy to make them more amenable to adhesive bonding. Conventional plastic surface treatments include corona and flame treatments. Corona treatment is a quick and inexpensive method. This process...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0006842
EISBN: 978-1-62708-387-4
... concentration Likewise, many manufacturing and material problems found in metals are also observed or have a corollary in plastics. Weldments are a trouble-prone area for metals, as are weld lines or knit lines in molded plastics ( Fig. 12 ). High residual stresses can result from metal forming, heat...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003270
EISBN: 978-1-62708-176-4
... deformation, only the shear stress may be considered responsible for the plastic strain. The stress field in the deformed material volume may therefore be represented by the maximum shear stresses in the form of slip lines (see Fig. 2 ). These lines should not be confused with the slip lines associated...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005168
EISBN: 978-1-62708-186-3
... Abstract This article discusses the numerical simulation of the forming of aluminum alloy sheet metals. The macroscopic and microscopic aspects of the plastic behavior of aluminum alloys are reviewed. The article presents constitutive equations suitable for the description of aluminum alloy...
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
... plastic strain amplitude, a very slight increase in strain amplitude resulted in quick formation of intensive slip markings on the surface. Neumann ( Ref 42 ) cycled single crystals with linearly increasing stress amplitude. The plastic strain amplitude showed very strong maxima during testing...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005251
EISBN: 978-1-62708-187-0
... plastic films along the top and bottom sand surfaces of the cope and the drag molds and then vacuum applied to the sand medium of the cope and the drag ( Fig. 2 ). The plastic film along the top of the drag mold and the bottom of the cope mold is softened by heating and then formed on an appropriate...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006927
EISBN: 978-1-62708-395-9
... general design rules for the plastic forming processes covered. It also discusses the steps involved in design validation and verification. plastic design plastic forming tooling DESIGN of a plastic part needing to be formed must consider the material, the process, and the tooling...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002117
EISBN: 978-1-62708-188-7
... deformation), which forms the chip. The chip passes over the rake face of the cutting tool and receives additional deformation (called the secondary deformation) because of the shearing and sliding of the chip against the tool. These two plastic deformation processes have a mutual dependence. The material...