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forging dies

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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
... the tooling made from this material can sustain. Two techniques are described ( Ref 3 ) that may be applicable to forging dies. Table 4 shows the yield strength to be 415 MPa (60 ksi) and the tensile strength to be 590 MPa (85 ksi), which are reasonable die properties for aluminium forgings. The Young's...
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
...-work die steels. Values in parentheses indicate room-temperature Rockwell C hardness. Fig. 9 Common failure mechanisms for forging dies. 1, abrasive wear; 2, thermal fatigue; 3, mechanical fatigue; 4, plastic deformation. Source: Ref 6 Fig. 15 Four designs commonly used for flash...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
...Abstract Abstract Forging machines use a wide variety of hammers, presses, and dies to produce products with the desired shape, size, and geometry. This article discusses the major types of hammers (gravity-drop, power-drop, high speed, and open-die forging), and presses (mechanical, hydraulic...
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
... for the convenience of both designers of forgings and designers of forging dies and contiguous flash. Flash Land and Flash Saddle Flash Gutter Fin Flash Trim or Removal Conventional versus Close Trim Flash Extension Flash Line or Trim Line Finish Flash for Radially Symmetrical Hammer and Press...
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
... of machining and 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...
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
... Fertigungstechnik und Machinenbau GmbH (GFM) Fig. 4 Cross section of hydromechanical radial forging machine. Courtesy of GFM GmbH Fig. 6 Equivalent plastic strain distribution for straight tools (flat dies). (a) Section in die plane. (b) 45° to die plane. Courtesy of GFM-GmbH Fig. 7...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003976
EISBN: 978-1-62708-185-6
... on forging die wear. Wear index is defined as the average cross-sectional area of wear depressions in the die. Source: Ref 22 Fig. 23 Temperatures at the surface and at various depths in forging dies obtained during forging 1040 steel without lubricant. Source: Ref 32 Fig. 24...
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
... 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 workpiece rotates. In this manner, the forging force acts on only a small...
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
... Fig. 4 Modern roll forging machine Fig. 7 Contours in a typical set of flat-back segmental dies used to forge the workpiece shown Fig. 8 Roll forging operation using multiple passes Fig. 9 Manual operation of roll forging Fig. 10 Forging of an axle shaft...
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
... forgings. Life to rework and total life were the same, because worn die inserts were not reworked. (c) Based on a 50 min working hour Fig. 8 Effect of steel being forged on the life of gripper dies in upsetting. Dimensions given in inches Fig. 9 Effect of severity of forging on die...
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
...). Dimensions given in inches Fig. 2 Tooling points applied to a drawing of a forged part (a), with corresponding (b) inspection fixture, and with (c) part in fixture Abstract Abstract The design of forging operations; consisting of dies, fixturing, and parts; requires a consistent...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006424
EISBN: 978-1-62708-192-4
... steel hot billet upset forgings on H13 steel dies with a hardness of 46–48 HRC, showing the effect of sliding on wear. Also of interest here is the relative die wear on the top and bottom die in lubricated conditions. Source: Ref 59 , adapted from Ref 55 Fig. 4 Reduction in friction...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003996
EISBN: 978-1-62708-185-6
... Metal-Matrix Composites Design and Tolerance Criteria Tooling and Design Processing Technology Development and Cost Effectiveness Preparation of Forging Stock Preheating for Forging Heating of Dies Lubrication Forging Process Trimming, Forming, and Repair Cleaning...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006112
EISBN: 978-1-62708-175-7
... process line for heat treated parts. Source: Ref 31 Abstract Abstract Powder forging is a process in which unsintered, presintered, and sintered powder metallurgy preforms are hot formed in confined dies. This article provides information on the basic forms of powder forging and describes...
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
.... Abstract Abstract This article provides an overview of the capabilities of closed-die forging. 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. The article describes the effects of friction...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006493
EISBN: 978-1-62708-207-5
... speeds are generally on the slow side, with 2.54 cm/s (1 in./s) or less being typical. Hot dies, including isothermal dies, are common. For most cases, tooling is within 120 °C (215 °F) of the workpiece temperature. For net-shape/precision forgings, isothermal tooling and low strain rates are the norm...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003097
EISBN: 978-1-62708-199-3
... stock, (c) a cylindrical extruded section, and (d) a ring-rolled section, illustrating the effect of section configuration, forging process, or both, on the longitudinal direction in a forging Fig. 7 Locked or stepped dies used to equalize thrust Fig. 8 Orientation of a forging...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003998
EISBN: 978-1-62708-185-6
... Source: Ref 1 Approximate forging pressures required for a 10% upset reduction of various materials at normal forging temperature in flat dies Table 3 Approximate forging pressures required for a 10% upset reduction of various materials at normal forging temperature in flat dies Work...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003985
EISBN: 978-1-62708-185-6
... rate for an isothermally forged turbine disk at a time point where strain rates peak at critical locations Fig. 19 F-15 bearing supports weighing 21.1 kg (46.5 lb) individually, made of Ti-6Al-4V that was finish forged with a hot-die near-net forging process in Astroloy dies at 925 °C (1700...
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
... heading tools and dies showing the extent to which stock is supported Fig. 2 Principal components of a typical machine for hot upset forging with a vertical four-station die Fig. 3 Basic actions of the gripper dies and heading tools of an upsetter Fig. 1 Upset forging process...