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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
... 42–48 4130 36–44 4140 36–44 (a) Cemented carbide is sometimes used for die sleeves. (b) Maraging steel is sometimes used for die buttons. Fig. 3 Aluminum alloy 1100-O housing extruded in two operations due to an internal boss. Dimensions given in inches. Fig. 4...
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: 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× the extruded wall...
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
... wrought 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...
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
... dissimilar materials. 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...
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
... Recommended electrode force and welding current specifications for projection welding of selected stainless steels relative to 1010 low-carbon steel Thickness of thinnestoutside piece (a) , T Minimum electrode face diameter (b) , d Weld time (c) , cycles Hold time (d) , cycles 1010 low-carbon...
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 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: 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...
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
.... Alternatively 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...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002449
EISBN: 978-1-62708-194-8
.... The construction materials available for these techniques include photopolymerizable or thermoplastic resin, paper, wax, and metal or ceramic powder. Secondary operations expand the list of available materials to include castable metals and certain forms of composites. General Description The traditional...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001105
EISBN: 978-1-62708-162-7
... pressing Limited by capacity of pressure vessel Simple or complex shapes Rubber molds Low High Powder rolling Limited width, long length Flat and thin … High Low Warm extrusion Limited by equipment size Long pieces with uniform cross section Hardened steel or carbide dies High Low...
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: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.9781627081856
EISBN: 978-1-62708-185-6
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003053
EISBN: 978-1-62708-200-6
.... Mechanical Consolidation Mechanical consolidation is an operation performed on prepared ceramic powders in order to form a shape that can be sintered. Many methods have been developed to accomplish this ( Table 1 ), including uniaxial dry pressing, cold isostatic pressing (using either wet or dry bag...
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
... and operations (heating, cooling, downstream sizing, corrugating, and crossheading) of the screw, the most important component of any extruder. It discusses the shapes produced by screw extrusion and the types of extrusion products produced by extrusion processes, including blown-film extrusion, flat-film...