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die geometry

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009005
EISBN: 978-1-62708-185-6
...Abstract Abstract Workability in forging depends on a variety of material, process-variable, and die-design features. A number of test techniques have been developed for gaging forgeability depending on alloy type, microstructure, die geometry, and process variables. This article summarizes...
Image
Published: 30 September 2015
Fig. 5 Various die designs for the production of specific part geometries. (a) Simple (direct) pressing. (b) Rod pressing. (c) Clearance die. (d) Shelf die. (e) Multiplaten pressing. (f) Side pressing More
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0009001
EISBN: 978-1-62708-186-3
... in.) in thickness. The novel techniques developed earlier by the Ford and Mittal Steel team for indirect nondestructive measurements of draw die wear during stamping production of an electrogalvanized (EG) DP500 part were further enhanced for acquiring and extracting draw die and bead geometry and surface...
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
... developments in technical journals (e.g., Ref 12 ) that will undoubtedly arise over the coming years. Automating the search for optimum process parameters, such as preheat temperature or ram velocity, while not changing the preform and die geometry, is easier than when the geometry is also considered...
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
... for manufacturing a die set is reduced, and machining is mainly devoted to producing the cavities or punches. The information flow and processing steps used in die manufacturing may be divided into the following stages: Die design (including geometry transfer and modification) Heat treatment Tool...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009008
EISBN: 978-1-62708-185-6
... fracture in bulk forming operations. They embody, graphically, both the material influence in the fracture-strain-limit line and the process influence through the variation of strain paths with die geometry, workpiece geometry, and friction. To illustrate this interrelationship, consider the bolt-heading...
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
...Abstract Abstract Hot extrusion is a process in which wrought parts are formed by forcing a heated billet through a shaped die opening. This article discusses nonlubricated and lubricated hot extrusion. The two nonlubricated hot extrusion methods are forward or direct extrusion and backward...
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
... tool geometries. This analysis simulated a 20% reduction of alloy 718 with two tool geometries. Figure 6 shows the strain distribution obtained with the straight die geometry. From Fig. 7 the benefit of an 8° tool entrance angle is observed in the higher strain homogeneity in both radial and axial...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001364
EISBN: 978-1-62708-173-3
... of solid-projection welding particularly in its early stages, because of the thickness of the sheet. In addition to defining the geometry of the projection, projection designs should provide an annular relief for projection material that is forged to the side during welding. Projection and die...
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.a0004035
EISBN: 978-1-62708-185-6
..., with the potential to simplify geometries while minimizing tolerance stack-ups. The method also facilitates inspection liaison between vendors and users because fixturing is easy to duplicate and tooling points are consistent from forging to finish-machined part. The article focuses on the most common dimensional...
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
... corner and fillet radii, smaller draft angles, and smaller forge envelopes. These designs allow reductions in the envelope protecting the finished part and ultrasonic inspection geometry and therefore significantly reduce the forging weight. An example for the hot-die forging of a Ti-6Al-4V structural...
Image
Published: 01 January 2006
Fig. 11 Experience-based product and die design. (a) Advice as to how the part geometry should be designed to accommodate the material formability is generally supplied to the product community by the die community but is experience based, and as such is neither scientific nor mathematical. (b More
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
... modeling (FEM), now can be used to evaluate die geometries. In the past, the design process (like that for other forging processes) was basically one of trial and error. A set of dies would be constructed and tested for each part not previously produced by rotary forging in order to determine whether...
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
...° semicone angle die, also known as a flat-face die. Despite the fact that die geometry (die angle) can significantly influence metal flow, industrial conditions and process productivity favor the flat-face design in many cases. In this situation, metal flow can be corrected only by proper design...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003989
EISBN: 978-1-62708-185-6
... is that they require some type of die to form the workpiece. The shape of these implements greatly influences the distribution of strain in the billet as well as the general billet shape. As a result, a variety of die geometries have been developed for every conceivable forging operation. Flat Flat dies...
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
...Abstract Abstract This article begins with a discussion on the fundamentals of cutting. It focuses on blanking and piercing operations in a press tool to form and shape the final part geometry. The types of piercing operations include conventional piercing, piercing with a pointed punch, piece...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003999
EISBN: 978-1-62708-185-6
...Abstract Abstract Forging of nickel-base alloys results in geometries that reduce the amount of machining to obtain final component shapes and involves deformation processing to refine the grain structure of components or mill products. This article discusses the heating practice, die materials...