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piece-and-extrude operation

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Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005117
EISBN: 978-1-62708-186-3
... countersinking cutting die assembly extruding fine-edge blanking fully developed blanks lancing partially developed blanks piece-and-extrude operation piercing piercing shear piercing tools pointed punch piercing punch assembly rectangular blanks rough blanks sheet-forming slotting stripper...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006526
EISBN: 978-1-62708-207-5
... accuracy of cold-extruded parts Elimination of heat treating operations because of the increase in the mechanical properties of cold-extruded parts Cold extrusion is sometimes used to produce only a few parts of a certain type, but it is more commonly used for mass production because of the high...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004005
EISBN: 978-1-62708-185-6
... upsetting and cold extrusion replaced a hammer forging and machining sequence after which the flange, a separate piece, had been attached. Fig. 15 1039 steel rear-axle drive shaft produced by cold extruding an upset forging in three operations. Billet weight: 9.6 kg (21.2 lb). Dimensions given...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003125
EISBN: 978-1-62708-199-3
... aluminum alloys can be obtained as precision extrusions with good as-extruded surfaces; major dimensions usually do not need to be machined, because tolerances of the as-extruded product often permit manufacturers to complete the part by simple cutoff, drilling, or other minor operations. In many...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005122
EISBN: 978-1-62708-186-3
... in composition. The piece was compression formed on a radial draw former into a half circle with a 1145 mm (45 in.) radius. The two holes in the end of the piece were used to connect this section with a fishplate on one end of a mating piece to form an assembled ring. The sequence of operations was as follows...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006518
EISBN: 978-1-62708-207-5
... products are so designated because they have been subjected to plastic deformation by hot-working and/or cold-working processes (such as rolling, extruding, and drawing), to transform cast aluminum ingot into the desired final shape. Typical examples of wrought products include rolled plate, sheet and foil...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003015
EISBN: 978-1-62708-200-6
... Abstract This article describes the extrusion process, which converts soft, plastic material into a particular form using an extruder, or screw conveyer. It discusses the two main types of plastic extruders, twin-screw and single-screw, estimation of extruder capacity, and design and operations...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004004
EISBN: 978-1-62708-185-6
... forward-backward extrusion and multiple extrusion operations ( Ref 6 , Ref 7 , Ref 8 , Ref 9 , Ref 10 ): Backward extrusions should have a minimum reduction of 20 to 25% and a maximum of 70 to 75%. Bottom thickness during backward extrusion should not be less than 1 to 1.5├Ś the extruded wall...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005633
EISBN: 978-1-62708-174-0
.... Introduction to Flash Welding and Upset Welding Figure 1 is a schematic representation of a typical flash-welding operation. Flash butt welding has been in existence for 100 years or so, originally developed by Elihu Thompson. Generally, one of the metal pieces to be joined is held in a stationary clamp...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005109
EISBN: 978-1-62708-186-3
... be impaired if holes are pierced before forming, or separate operations may provide a more balanced work load and reduce maintenance. As an example, when a hole is pierced and coined to a bevel with the same punch, coining extrudes an excessive burr between the punch and the die unless a close punch...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003207
EISBN: 978-1-62708-199-3
... Abstract This article presents a detailed account of the welding parameters, equipment needed, applications, advantages, limitations, and the process variables affecting various types of resistance welding operations, namely, resistance spot welding, resistance seam welding, resistance...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004015
EISBN: 978-1-62708-185-6
... or additionally to multiple function features, extruded profile design can also combine designs and functions of multiple parts into a single, one-piece aluminum extrusion. An integral extruded design that replaces multiple components can eliminate assembly and joining steps, associated jigs and fixtures...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
..., precision forging, and cold forging. computer-aided design die design forging processes materials selection types of hammers types of presses Hammers and Presses for Forging FORGING MACHINES fall into three categories according to their method of operation. Mechanical forging presses...
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
... extrusion. The article illustrates the significance of extrusion speeds and temperatures in hot extrusion. It describes the basic types of presses used in the hot extrusion of metals. The article provides information on the characterization of extruded shapes and explains the operating parameters, including...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002142
EISBN: 978-1-62708-188-7
... the flat die method is selected for a specific piece. Radial-Infeed Rolling Radial-infeed thread rolling consists of moving a rotating cylindrical die or dies radially toward the center of the rotating workpiece. The operating principle of this method is shown in Fig. 9 . Fig. 9 Operating...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004012
EISBN: 978-1-62708-185-6
... as thread dimensions must be considered before the flat-die method is selected for a specific piece. Radial-Infeed Rolling Radial-infeed thread rolling consists of moving a rotating cylindrical die or dies radially toward the center of the rotating workpiece. The operating principle of this method...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005180
EISBN: 978-1-62708-186-3
... of limitations on the lifter motions needed to clear the draws from the die. Operating Cost The per-piece cost of operating a multiple-slide machine is comparatively low. This is a direct result of a high rate of production. As many as 20,000 to 70,000 stampings can be made in a 16 hour shift...
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
... Abstract This article describes the direct hot extrusion process and the typical sequence of operations for producing extruded aluminum shapes from soft and medium-grade aluminum alloys, hard alloys, and aluminum-matrix composites. It discusses key process variables, including extrusion speed...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004031
EISBN: 978-1-62708-185-6
... generous nish allowance and radii. breaking stress. The stress at which a material Such forgings are sometimes speci ed to separates into two pieces, measured by a sui- bend (transverse). A forming operation in reduce die costs where only a small number of table device and usually reported in pounds which...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.9781627081856
EISBN: 978-1-62708-185-6