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progressive dies

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Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005160
EISBN: 978-1-62708-186-3
... Abstract This article discusses different factors for selecting progressive dies: costs, production volume, and press availability. It describes the purposes of strip development for a ring shaped part and presents the principles for the development of progressive dies. The article provides...
Image
Published: 01 January 2006
Fig. 5 Small-diameter laminations produced in progressive dies. Dimensions given in inches More
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
... in piercing. It illustrates the use of compound dies, progressive dies, and transfer dies; piercing of thick and thin stock and piercing holes at an angle to the surface; special piercing techniques; and shaving of low-carbon steels. compound dies low-carbon steel piercing progressive dies shear...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005119
EISBN: 978-1-62708-186-3
... and pierced in single-station dies ( Fig. 3 ) or progressive dies ( Fig. 4 ). Slots can also be made in precut blanks, one at a time, with notching dies. (b) Typical laminations blanked and pierced from electrical sheet for application in units other than rotating machines. Dimensions given in inches...
Image
Published: 01 January 2006
Fig. 1 Typical laminations blanked and pierced from electrical sheet. (a) Laminations for rotating electrical machinery are blanked and pierced in single-station dies ( Fig. 3 ) or progressive dies ( Fig. 4 ). Slots can also be made in precut blanks, one at a time, with notching dies. (b More
Image
Published: 01 December 1998
Fig. 14 Typical laminations blanked and pierced from electrical sheet. (a) Laminations for rotating electrical machinery are blanked and pierced in single-station dies ( Fig. 15 ) or progressive dies ( Fig. 16 ). Slots can also be made in precut blanks, one at a time, with notching dies. (b More
Image
Published: 01 January 2006
Fig. 17 Typical parts of varying severity that are commonly produced by blanking and piercing. Parts 1 and 2 are relatively simple parts that require dies similar to those illustrated in Fig. 16 . Parts 3 and 4 are more complex, requiring notching and the use of compound or progressive dies More
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005108
EISBN: 978-1-62708-186-3
... cutoff, parting, blanking, notching, and lancing. The first three of these operations can produce a complete blank in a single press stroke. In progressive dies, two or more of these five operations are done in sequence to develop the complete outline of the blank and to separate it from the sheet, strip...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003987
EISBN: 978-1-62708-185-6
... for coining, usually requires some preliminary metal redistribution by other processes, such as forging or extrusion, because only a small amount of metal redistribution can take place in the coining dies in single-station coining. In progressive-die operations, coining is done as in single-station dies...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
...-side presses with progressive dies. Eccentric-Gear Drives Eccentric-gear drives are used almost universally for large, straight-side presses that operate at speeds under 50 strokes/min. In place of a crankshaft, an eccentric is built as an integral part of the press drive gear. The eccentric...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005121
EISBN: 978-1-62708-186-3
.... In an automatic operation using progressive dies or transfer mechanisms, at least one-half the stroke must be reserved for stock feed, because the tooling must clear the part before feeding begins for the next stroke. For automatic operation, it is common practice to allow a press stroke of four times the length...
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
... in this die, and the ejector pin advances to eject the finished piece. In a cold-heading machine with progressive dies, the transfer mechanism has fingers in front of each of several dies. After each stroke, the ejector pin pushes the workpiece out of the die. The transfer mechanism grips it and advances...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005162
EISBN: 978-1-62708-186-3
... dies are used in presses with enough force capacity to meet the total demands of the various stations and with enough dimensional capacity for the long multiple-station dies. Although some progressive dies are hand fed, most have auxiliary equipment, such as stock feeders, scrap choppers, coil reels...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005165
EISBN: 978-1-62708-186-3
...-slide machines are either single-stage or progressive, depending on the complexity of the part being formed. Generally, a progressive die is used, even though it may be only a simple two-station pierce-and-pilot die. The dies for producing the blank must be made as accurately for a multiple-slide...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005139
EISBN: 978-1-62708-186-3
... to less than 1%. After forming, the wheel covers were vapor degreased. Combined Operations in Compound and Progressive Dies The use of compound and progressive dies for the mass production of parts that require many operations or for an operation that is too severe to be done economically...
Image
Published: 31 December 2017
. Note that the plastic zones do not meet, which then lead to chevron cracking. The same observations are also made in drawing round bars through conical dies and drawing flat sheet or plate through wedge-shaped dies. (c) Progressive piping defect. Source: (a) and (b) Ref 1 . S. Kalpakjian and S. Schmid More
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005158
EISBN: 978-1-62708-186-3
... of the most important applications of electrical discharge wire cutting is the product of progressive dies ( Fig. 3 ), where a strip of sheet metal is advanced through the die, one station at a time. Fig. 3 Progressive die cut by traveling-wire electrical discharge machining. Courtesy of Progressive...
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
... roll forging dies with progressive shape changes. The roll dies act like a roll as well as a forging die. Forging rolls are available in numerous sizes and have the capacity to roll blanks up to 200 mm (8 in.) thick and 1920 mm (75 in.) long. The roll dies usually have multiple progressive impressions...
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Published: 01 January 2006
Fig. 15 Frame produced in a nine-station progressive die in the sequence of operations indicated on the strip development shown. Final forming was done in separate dies. Dimensions given in inches More
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Published: 01 January 2005
Fig. 33 Roller part progression demonstrating 180┬░ transfer from the first die to the second die, and straight-across transfers for the rest of the dies. Courtesy of M. van Thiel, Nedschroef Herentals N.V. More