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finishing forging dies

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004041
EISBN: 978-1-62708-185-6
... finishing forging dies. It illustrates different stages in die manufacturing. The article provides a brief description on requirements and characteristics of high-speed machining tools, including feed rates, spindle speed, surface cutting speeds, and high acceleration and deceleration capabilities. It...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003975
EISBN: 978-1-62708-185-6
... sides. This helps ensure perfect balance in the forging equipment, permits full utilization of maximum ram impact as the forging is in the finishing impression, and eliminates wear-causing side thrusts and pressures during forging. After the layout is finished and checked, the dies are ready for...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
... provision for flash. Figure 13 shows a typical arrangement (flash clearance, flash land, and gutter). Fig. 13 Section through a forging, die finisher impression showing flash clearance, flash land, and gutter A small amount of flash clearance in the dies, with an excess volume of work metal...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004024
EISBN: 978-1-62708-185-6
... process. The indirect rapid tooling technologies include 3D Keltool process, hot isostatic pressing, rapid solidification process tooling, precision spray forming, and radially constricted consolidation process. 3D Keltool process direct rapid tooling forging dies hot isostatic pressing indirect...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001814
EISBN: 978-1-62708-180-1
..., unconsolidated interiors, and carbide segregation and poor carbide morphology are reviewed with illustrations. brittle fracture carbide segregation die failure dies electrical discharge machining failure mechanisms finish grinding heat treatment hot working laps machining mechanical testing...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004022
EISBN: 978-1-62708-185-6
... Abstract For forming processes, optimization goals range from tuning the process parameters while keeping geometry unchanged to finding optimal geometry for intermediate dies in a multistage forming operation. This article commences with a description on the three salient steps of optimization...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004035
EISBN: 978-1-62708-185-6
....) of the finished surface or to within one-half of the finish stock allowance, whichever is smaller. In general, surface tolerances apply after cleaning and descaling. Allowance for metal loss by cleaning and descaling is made by the forging producer when the dies are made. The thickness of a...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001231
EISBN: 978-1-62708-170-2
... 3.20 125 SS, stainless. (a) Treatment or condition. A, annealed; B, as-cast; C, as-forged; D, cold finished; E, hot finished; F, stress relieved; G, solution and precipitation treated; H, air quench, furnace temper; I, oil quench, furnace temper; J, salt quench, furnace temper. Source...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001232
EISBN: 978-1-62708-170-2
... grinding uses extremely fine abrasive particles to achieve extremely fine reflective surfaces of precise geometry. These methods are used to finish precision molds and dies, such as those used for making contact lenses and other optical products. Grinding from solid combines the high-material-removal...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002494
EISBN: 978-1-62708-194-8
... Abstract This article provides guidelines about general design principles for different types of surface-finishing processes, such as cleaning, organic coatings, and inorganic coatings applied by a variety of techniques. It discusses various factors that influence the selection of surface...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003992
EISBN: 978-1-62708-185-6
..., most of the dies are of the single-cavity design. Tolerances are always close, so practice is the same regardless of the quantity to be produced. A die is made with a finishing cavity, and after it is worn to the extent that it can no longer produce forgings to specified tolerances, the cavity is recut...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003990
EISBN: 978-1-62708-185-6
... at any given time. Because the footprint is typically only approximately one-fifth the workpiece surface area, rotary forging requires considerably less force than conventional forging. (b) In radial forging, the workpiece is fed between the dies, which are given a rapid periodic motion as the...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003986
EISBN: 978-1-62708-185-6
... surfaces of the dies make contact when the finish thickness dimension is achieved, substantially improving the control over the thickness of the forging. Modern hydraulic presses can be used to forge to very accurate thickness dimensions because their control systems give precise control over ram movement...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004036
EISBN: 978-1-62708-185-6
... forging procedure, the producer stipulates saddle depth, flash thickness, ratio of flash land to flash thickness, total weight and complete sectional design of flash, placement of flash with respect to the parting line, and method of flash removal. Dies for finish forging of radially symmetrical...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003988
EISBN: 978-1-62708-185-6
... considerations, such as process stages, tool design, and secondary operations; of ferrous alloy powder forging. The mechanical properties of powder forged materials are also reviewed. The article discusses the quality assurance tests for powder forged materials: the part dimensions and surface finish measurement...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003979
EISBN: 978-1-62708-185-6
... and requires some subjective evaluation based on past experience. One of the most important aspects of closed-die forging is proper design of preforming operations and of blocker dies to achieve adequate metal distribution. Therefore, in the finish-forging operation, defect-free metal flow and...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003980
EISBN: 978-1-62708-185-6
... and tooling permit the use of multiple-pass dies that can produce relatively complex shapes. The process is widely used for producing finished forgings ranging in complexity from simple bolts or flanged shafts to wrench sockets that require simultaneous upsetting and piercing. Forgings that require...
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
... Abstract Radial forging is a process performed with four dies arranged in one plane that can act on a piece simultaneously. This article explains the types of radial forgings and describes the advantages and disadvantages of radial forging over open-die cogging/forging. The article discusses...
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
... half-rounds together, and then boring and finishing. Roll dies designed for forging the required shape are bolted to the roll shafts, which rotate in opposite directions during operation ( Fig. 6 ). Roll dies (or their effective forging portion) usually occupy about one-half the total circumference...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001021
EISBN: 978-1-62708-161-0
...-finish factor or amount of stock that must be removed to satisfy the dimensional and detail requirements of the finished part. In addition to types and classifications, the article discusses critical design factors and ways to ensure that the resulting forgings measure up to metallurgical, mechanical...