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draft forging process

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Published: 01 January 2005
Fig. 20 Leading-edge fin rib forging produced by the no-draft forging process. See Example 8. Dimensions in figure given in inches Item No-draft forging Alloy and temper Aluminum alloy 7075-T6 Mechanical properties (a) Weight of forging 1.1 kg (2.40 lb) (b) Plan area More
Image
Published: 01 January 2005
Fig. 8 Relation of draft to forging material and process. (a) Conventional stainless steel forging with draft. (b) Aluminum alloy no-draft forging. Dimensions given in inches. More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004038
EISBN: 978-1-62708-185-6
..., the rib is inward from the edges of the forging and, therefore, is not contiguous with flash. The sections shown in Fig. 1(b) are analogous to those in Fig. 1(a) , but are designed for the no-draft forging process, which requires that the parting line for a peripheral rib be located at the top...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004037
EISBN: 978-1-62708-185-6
... examples, with illustrations of parting line locations, accompanied by tables of design parameters. anisotropy cylindrical forgings draft forging process forging design grain flow parting line CONTROL OF GRAIN FLOW is one of the major advantages of shaping metal parts by rolling, forging...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004034
EISBN: 978-1-62708-185-6
.... Draft is used sparingly, to minimize material and machining costs. The feasibility of eliminating draft depends, in part, on the cost of special tools and processing. Types of Draft Basic types of draft used in forging design are illustrated schematically in Fig. 1 and are defined...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004033
EISBN: 978-1-62708-185-6
... forgings, and the smallest fillets are restricted to precision, close-tolerance, and no-draft forgings. Each of these forging processes also imposes limits on the size and complexity of design. The size of horizontal fillet radii is further qualified by whether the fillets are to be net forged...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003097
EISBN: 978-1-62708-199-3
... that are inferior to those of a part produced from a close-tolerance, no-draft forging. Selection of Steel Selection of a steel for a forged component is an integral part of the design process, and acceptable performance is dependent on this choice. A thorough understanding of the end use of the finished...
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
... designer may, as a direct result of his or her design, impose control over the forging process. The forging design may require replacement or modification of the closed-die hammer and press process by other forging processes, such as no-draft forging, ring rolling, upset forging, or piercing and extruding...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003991
EISBN: 978-1-62708-185-6
... Forging die design features Machining of forgings Special considerations for design of hot upset forgings In many ways, the forging of steels has been an intuitive, empirical process based on trial and error. This has changed to a significant degree due to engineering application of continuum...
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
..., taper (draft) angles, fillet and corner radii, rib heights, and rib and web thicknesses. Forgeability For a given aluminum alloy forging shape, the pressure requirements in forging vary widely, depending primarily on the chemical composition of the alloy being forged, the forging process being...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004039
EISBN: 978-1-62708-185-6
... of dies, and the no-draft forging ( Fig. 4d ) would require special dies and insert tooling. Producing thinner webs entails more elaborate tooling and more processing steps, leading to higher costs. Fig. 4 Rib-to web combinations showing reduction of web thickness by refinement of tooling...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003997
EISBN: 978-1-62708-185-6
...Abstract Abstract This article focuses on forging processes and equipment, types of forging alloys, and the forging practices associated with the forging of copper and copper alloys. An overview of the forging tolerances for small copper-base forgings is presented in a table. copper...
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
... allowance material control mechanical properties open die forgings quality assurance tolerances FORGING is the process of working hot metal between dies, usually under successive blows and sometimes by continuous squeezing. Closed-die forgings, hot upset parts, and extrusions are shaped within...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004040
EISBN: 978-1-62708-185-6
... incorporate the necessary engineering features at a lower cost was called for. Solution and Results A significant cost reduction (amounting to 43% for the 400 parts required) could be realized by adoption of the partially no-draft, precision forging process. Among the advantages inherent in this design...
Image
Published: 01 January 2005
Fig. 14 Aluminum alloy doubler forging for wing skin pylon support that was designed as (a) a blocker-type forging and as (b) a conventional forging, with alterations in corner and fillet radii to adapt it to the forging process. See Example 3 . Dimensions in figure given in inches Item More
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
... required will often determine whether the forging should be produced as an open-die, blocker, conventional, close-tolerance, or precision forging. After selecting the most appropriate forging process, determine the finish stock allowance for machining, draft allowance, and tolerances for length and width...
Image
Published: 01 January 2005
Material Aluminum alloy 2014 (a) Forging equipment 160 MN (18,000 tonf) press (a) Forging process Block and finish (a) Heat treatment (temper) T6 (a) Mechanical properties (a) (b) Inspection Ultrasonic (a) ; dye penetrant (a) Weight of forging (approx) 39 kg (85 lb More
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
... of the length of the stroke and of the force and speed of the blows is particularly useful in forging aluminum alloys, because of their sensitivity to strain rate and their exothermic nature under rapid deformation processes. Power-drop hammers are used to manufacture closed-die forgings if an applied draft...
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
..., process selection considerations, design guidelines, alloy types and selection, and the advantages and disadvantages of hot-die forging and isothermal forging. The article discusses the application of the finite-element analysis modeling to design. finite-element analysis forging parameters hot...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002486
EISBN: 978-1-62708-194-8
... conventional die compaction conventional press method conventional sinter method density metal injection molding powder forging powder metallurgy THE POWDER METALLURGY (P/M) process is a near-net or net-shape manufacturing process that combines the features of shape-making technology for powder...