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sheet hydroforming

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Published: 01 January 2006
Fig. 14 Hybrid methods for use with soft tools. (a) Use of an electrohydraulic impulse in conjunction with sheet hydroforming. Hydroform forms the basic shape, while the shock wave imparts detail. (b) Use of electromagnetic coils to influence the strain distribution in electromagnetic More
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006527
EISBN: 978-1-62708-207-5
..., and kinematic incremental sheet forming. The article concludes with a discussion on spinning, warm forming, and superplastic forming. aluminum alloys bendability compression bending deep drawing formability forming hydroforming roll bending sheet forming spinning ALUMINUM and its alloys...
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Published: 01 January 2006
Fig. 4 Comparison of two methods of forming 2024-T4 aluminum into a conical die. (a) Schematic of the setup used in hydroforming and electrohydraulic forming. (b) Comparison of forming 2024-T4 sheet aluminum into a conical die using a hydroforming process (left) and using high-velocity More
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005100
EISBN: 978-1-62708-186-3
... of sheet metals was primarily applied to make automotive and aircraft skin panels that required limited production runs for which the cost of conventional hard tooling was difficult to justify. More recently, various process modifications, such as warm hydroforming, integral hydrobulge forming, combined...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005127
EISBN: 978-1-62708-186-3
... methods of forming 2024-T4 aluminum into a conical die. (a) Schematic of the setup used in hydroforming and electrohydraulic forming. (b) Comparison of forming 2024-T4 sheet aluminum into a conical die using a hydroforming process (left) and using high-velocity deformation developed by electrohydraulic...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0009154
EISBN: 978-1-62708-186-3
... A, the hydroformed sheet (5) and the part to be attached (4) are brought in contact with the hydroforming tool (2) by the fluid (6). The rivet (3) is positioned on the surface of the parts (4). In steps B and C, the punch (1) presses the spreading rivet (3) into the sheets. The high-pressure fluid (6) prevents...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005151
EISBN: 978-1-62708-186-3
... forming options, such as tailor-welded blanks, sheet hydroforming, and superplastic forming, before making a feasible and cost-effective decision. Sheet Metal Forming Processes Sheet metal forming is one of the most important manufacturing processes in the automotive industry. Several different...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005168
EISBN: 978-1-62708-186-3
... Stress-integration procedures for both continuum and crystal-plasticity mechanics Finite element design Finally, various examples of the simulation of aluminum sheet forming are presented. These examples include earing in cup drawing, wrinkling, automotive stamping, hemming, hydroforming...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005124
EISBN: 978-1-62708-186-3
... Abstract This article focuses on the three basic groups of flexible-die forming methods: rubber pad, fluid cell, and fluid forming. It provides information on the Guerin process, the Verson-Wheelon process, the trapped-rubber process, the Marform process, the Hydroform process, the SAAB process...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005145
EISBN: 978-1-62708-186-3
..., especially in thin sheets, because most of these alloys can be hot formed effectively only in a narrow temperature range between approximately 925 and 1260 °C (1700 and 2300 °F). Annealing between cold forming operations is usually preferred to hot forming. This article discusses forming techniques...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003419
EISBN: 978-1-62708-195-5
... or commingling of reinforcing fibers with matrix fibers). In the latter case, melt impregnation must be accomplished at a later stage, either in an intermediate consolidation step or as part of final component molding. Fully impregnated thermoplastic prepregs are generally supplied as wide sheet or narrow tape...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003425
EISBN: 978-1-62708-195-5
... ) or by using induction diaphragm forming (IDF). The NIDF process is similar to hydroforming except that the layup is contained in extendable silicone bagging, and forming pressures are exerted by pneumatics instead of hydrostatics. In the case of IDF, deformable aluminum sheets are made to serve as susceptors...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004028
EISBN: 978-1-62708-185-6
... of the homogeneous effective medium (HEM). The article analyzes the anisotropy predictions of rolled face-centered-cubic and body centered-cubic sheets and presents simulations of the axial deformation of hexagonal-close-packed zirconium. The applications of polycrystal constitutive models to the simulation...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005154
EISBN: 978-1-62708-186-3
... Abstract Rapid prototyping (RP) techniques in the sheet-metal forming industry is developed to quickly test the form and fit of new sheet-metal products on a prototype basis as well as for production runs characterized by small lot sizes. This article provides an overview of some...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005144
EISBN: 978-1-62708-186-3
... specific strengths. For example, an important goal of the automotive industry is fuel efficiency, and one area of potential savings is weight reduction offered by magnesium alloy components, such as sheet metal body shell panels that are exposed to bending stresses ( Ref 1 ). Currently, the weight...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005128
EISBN: 978-1-62708-186-3
... by the progressive deformation of sheet metal in matched dies under the repetitive blows of a gravity-drop hammer or a power-drop hammer. The configurations most commonly formed by the process include shallow, smoothly contoured double-curvature parts; shallow-beaded parts; and parts with irregular and comparatively...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005540
EISBN: 978-1-62708-197-9
... of sheet metal forming processes normally also covers a wide range of various processes, the most common one being stamping, but other processes such as tube hydroforming, stretch forming, superplastic forming, and so on are also included in the general topic of sheet metal forming simulation. This article...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005141
EISBN: 978-1-62708-186-3
.... The function of the formed part must also be considered, and improvements in functional characteristics, such as strength and ease of machining, often tend to reduce the formability of the alloy. Aluminum alloy sheet can fail by cracking or splitting during forming by ductile fracture, with either...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005146
EISBN: 978-1-62708-186-3
... and titanium alloy sheet materials must be considered in forming: Notch sensitivity, which may cause cracking and tearing, especially in cold forming Galling (more severe than with stainless steel) Relatively poor ability to shrink (a disadvantage in some flanging operations) Potential...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006518
EISBN: 978-1-62708-207-5
... Abstract This article introduces the basic characteristics, processes, and product forms associated with the five major categories of aluminum wrought products, namely, flat-rolled products (sheet, plate, and foil); rod, bar, and wire; tubular products; profiles; and forgings. It summarizes...