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billet configurations

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004013
EISBN: 978-1-62708-185-6
..., billet configurations, and metal flow modes of coextrusion. It presents the analytical studies of coextrusion: deformation energy methods, lower-bound (slab) analyses, upper-bound analyses, and finite-element analyses. These studies are used to identify the regime of material properties and process...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003999
EISBN: 978-1-62708-185-6
... microstructure mill product, such as billets or bars, and secondary working refers to further forging of mill product into final component configurations. billets deformation die materials forging grain structure heating heating practice lubricants microstructure nickel-base alloy NICKEL...
Image
Published: 31 December 2017
Fig. 14 Hollow type II extrusion dies and metal flow mechanisms. (a) Die mandrel with billet entry port. (b) Die and billet 1 are lined up with the press to start extrusion. (c) Control volume of a hollow die. (d) Weld seam formation model. (e) Weld seam configuration with the mandrel port More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003989
EISBN: 978-1-62708-185-6
... complex to fabricate and maintain than flat dies, and each set of dies will have a limited billet diameter that it can process. However, the improvements in throughput and shape control make this configuration very attractive for many applications. Swage Another staple die configuration...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004016
EISBN: 978-1-62708-185-6
... Considered techniques may have limited industrial applications because of the restrictions on processing conditions, billet configurations, materials, cost, and so forth. A more practical approach is realized in ECAE ( Fig. 3b ). In this method, the tool is a block with two intersecting channels of identical...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006385
EISBN: 978-1-62708-192-4
...-container interfaces because there is no movement. When friction along all interfaces is high, a dead-metal zone develops ( Fig. 4b ). Note the high-shear area as the material flows into the die exit. This configuration may cause the billet surfaces (with their oxide layer and entrained lubricant...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006534
EISBN: 978-1-62708-207-5
..., and chevron cracking, can develop at the center of an extruded and drawn product ( Fig. 1 ). They occur when the center of the billet is not in a fully plastic state and are attributed to a state of hydrostatic tensile stress at the centerline of the deformation zone in the die. The various types of surface...
Book Chapter

By H.W. Sizek
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003984
EISBN: 978-1-62708-185-6
... plane that can act on the piece simultaneously. This action eliminates the spreading observed in open-die forging and restricts expansion of the material primarily to the axial direction of the bar. The four-die configuration imposes predominantly compressive strains on the part, reduces the propensity...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005849
EISBN: 978-1-62708-167-2
... the weldment between billets as they exit the coil line to ensure one heated billet is delivered at a time. The hot billet handling equipment also must be able to interface with a variety of different configurations and processes. For this reason, a lot of time is spent with customers perfecting the layout...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005854
EISBN: 978-1-62708-167-2
... machine with safety e-stop control and Control Relay Master (CMR) contactors and relays can easily be configured to be relatively safe. With the high power required for the induction power supply, which usually consists of separate power feeds, just putting a safety contactor in front...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004006
EISBN: 978-1-62708-185-6
... Abstract Hot extrusion is a process in which wrought parts are formed by forcing a heated billet through a shaped die opening. This article discusses nonlubricated and lubricated hot extrusion. The two nonlubricated hot extrusion methods are forward or direct extrusion and backward or indirect...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005296
EISBN: 978-1-62708-187-0
... production of continuously cast brass billets was introduced. Sigfried Junghans, an active inventor of casting technology, provided many improvements in the process, in particular the introduction of the oscillating-mold system to prevent the casting from sticking to the mold. Further development...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006467
EISBN: 978-1-62708-190-0
... provides a discussion on electromagnetic systems, eddy-current systems, and magnetic permeability systems for detection of flaws on steel bars. It concludes with a description of nondestructive inspection of steel billets. cracks eddy-current system electromagnetic inspection inclusions liquid...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003997
EISBN: 978-1-62708-185-6
... are produced in closed dies, and various configurations are shown in Fig. 1 . Open-die forging is used when: The product is too large to be produced in an closed-die. Mechanical properties cannot be obtained with other deformation processes. Production time or cost of closed dies is prohibitive...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004008
EISBN: 978-1-62708-185-6
... process can be repeated a number of times to produce wires with 20,000 to 1 million or more filaments. As shown in Fig. 18 , a first-generation billet can yield 19 individual filaments in the wire configuration. Sixty-one of these 19-filament wires can be stacked, extruded, and drawn to yield a 19├Ś61...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004040
EISBN: 978-1-62708-185-6
..., wherein a punch may contain configurations in addition to that needed to form a cavity, and the entire plan view configuration of the forging may be contained in either the upper or lower die, or in both. In closed-die forging, the punch that produces the cavity may be located either in the lower...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001110
EISBN: 978-1-62708-162-7
... incorporating AlFeCe as the matrix, designed for MRI applications. Fig. 3 Cross section of a prototype aluminum-stabilized composite for MRI applications fabricated using drilled-billet techniques. Outer ring of filaments are NbTi, inner filaments are high-purity aluminum, matrix is high-strength AlFeCe...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004032
EISBN: 978-1-62708-185-6
... is desirable to reduce the heat transfer during the lubricant application, the billet placement on the die, the actual forging deformation, and during the dwell and ejection operations. The die chill can cause significant underfilling and flow localization in temperature-sensitive workpiece materials...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003981
EISBN: 978-1-62708-185-6
... Abstract Roll forging is a process for simultaneously reducing the cross-sectional area and changing the shape of heated bars, billets, or plates. This article provides an overview of the process capabilities, production techniques, machines and machine size selection considerations, and types...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005840
EISBN: 978-1-62708-167-2
..., and brazing and fabricating the copper coil winding for heating billets, bars, and slabs. The article describes refractory selection criteria and the methods of mounting and securing the induction coil winding, and presents general refractory installation guidelines for induction heating applications...