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conical-feed dies

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980417
EISBN: 978-1-62708-342-3
... through a two-part bridge die, with the bridge extending into the container, for the production of a rectangular section. Source: Ames Extrusion dies can be divided into flat entry and conical entry. Extrusion dies with flat entries are used for extrusion with or without a shell and without...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500179
EISBN: 978-1-62708-317-1
..., the dies are closed, and the axial cylinders push the punches toward the tube end and seal the tube. Forming starts at stage B. Axial feed and increase in internal pressure are controlled simultaneously to improve the material-shaping capabilities. After the tube is completely formed (stage C), the punches...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040141
EISBN: 978-1-62708-300-3
... in number of strokes per minute and in the speed of feed and manipulation of the stock during forging. In addition, large reductions between two flat dies may cause excessive chilling at the billet corners and cracking at the center of the billet. Although these latter problems may be reduced by using V...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370187
EISBN: 978-1-62708-447-5
... 10.16(a) shows a front knuckle for an SUV produced by LPPM. It is gated into the bearing hub, which is a central location for metal flow and feeding. A conical gate connects the sprue and the hub. Figure 10.16(c) illustrates a knuckle turned with the sprue upward and a circular saw moving in to chop...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.9781627084475
EISBN: 978-1-62708-447-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.9781627083164
EISBN: 978-1-62708-316-4
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400233
EISBN: 978-1-62708-316-4
... placed between the inner and outer panels. advance See progression. aerial cam A cam attached to the upper half of the die with a driver on the bottom half of the die. Also called flying cam, dog leg cam, or walking cam. aids See skin or cast. air bend die Angle-forming dies in which the metal is formed...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390284
EISBN: 978-1-62708-459-8
... developed to use friction to assist the process (see Sec. 10.2.5 ). For example, feed rolls have been used to push material through ECAP dies [ 97 , 98 ]. A large number of other SPD processes have been investigated, some strongly related to extrusion [ 99 ]. For example, cyclic extrusion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410029
EISBN: 978-1-62708-280-8
... patterns mounted on plates or match plates. Sand cores are set into the bottom mold, and the top mold is placed over it to form a hollow casting configuration. Gates are formed in the pattern plates, and feeders for feeding shrinkage are provided for by cylindrical or rectangular blocks mounted on the top...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390241
EISBN: 978-1-62708-459-8
... discusses the use of vibrating dies, the influence of surface finish and defects, and lubrication practices for specific materials. die design die wear draw forces drawing lubricants drawing processes fixed plug drawing floating plug drawing hydrodynamic lubrication lubricant breakdown...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
...—such as a billet or a blanked sheet, for example—can be plastically deformed by a set of tools (or dies) to obtain the desired final thickness and geometrical configuration. Metal forming processes can be classified into two general categories: Bulk, or massive, forming operations Bending and sheet...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390325
EISBN: 978-1-62708-459-8
...; (b) using a friction factor. Figure 11.4: Means of promoting fluid-film lubrication in upsetting. (a) Producing grooves to entrap lubricant; (b) use of a rimmed specimen; (c) conical impression. Upsetting with Conical Dies The restraining effect of interface friction can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230295
EISBN: 978-1-62708-298-3
... controlled properly, it is quite ductile at elevated temperatures and therefore formable. 20.2.5 Preheat Treatment In most forming applications, both the die and the workpiece must be preheated. Dies are specially constructed to permit heating. Usually, a furnace is preferred for preheating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.9781627082808
EISBN: 978-1-62708-280-8
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980059
EISBN: 978-1-62708-342-3
.... The cold rod and tube extrusion processes are, however, always referred to as such, which emphasizes that they are special processes. In rod extrusion wire, strip, bar, solid sections, and hollow sections are produced. The latter are extruded through welding chamber dies. In these, the material...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260029
EISBN: 978-1-62708-336-2
... an excellent study using numerical methods to calculate the nonsteady-state temperature distribution in extrusion through conical dies. They included the temperature dependencies of the flow stress and of the thermal constants of the billet and the tool materials into the analysis. The researchers considered...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410151
EISBN: 978-1-62708-280-8
...). Tooling costs are the lowest among all the processes using metal molds or metal dies. Tooling life is high because of the protective refractory coatings, which prevent metal–mold reactions and require no pressure to fill or feed the cavity. Manufacturing cells can be run manually with one or two...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400005
EISBN: 978-1-62708-316-4
... flanging incremental forming stretch forming IN SHEET METAL forming, an initially simple part—a sheet blank, for example—is plastically deformed between tools (or dies) to obtain the desired final configuration. Thus, a simple part geometry is transformed into a complex one, whereby the tools “store...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980195
EISBN: 978-1-62708-342-3
... the extrusion process under suitable deformation conditions including the extrusion load and temperature. They can, therefore, be used with porthole and bridge dies as well as for billet-on-billet extrusion with feeder chamber dies. These extrusion tools are, in principle, similar to those used in aluminum...
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
... oxidation in a stream of pure oxygen. A fuel gas/oxygen flame heats the workpiece to ignition temperature, and a stream of pure oxygen feeds the cutting (oxidizing) action. The OFC process, which is also referred to as burning or flame cutting, can cut carbon and low-alloy plate of virtually any thickness...