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stretch bending

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Published: 01 January 2006
Fig. 20 Schematic of stretch-bending test More
Image
Published: 01 January 2006
Fig. 5 Principle of stretch bending More
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005134
EISBN: 978-1-62708-186-3
... Abstract This article describes various bending methods: draw bending, compression bending, roll bending, stretch bending, and ram-and-press bending. It discusses the machines used for the bending of bars. These machines include devices and fixtures for manual bending, press brakes...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005161
EISBN: 978-1-62708-186-3
... springback after bending, and discusses the variables and their effects on springback, as well as the methods to overcome or counteract them. These methods include overbending, bottoming or setting, and stretch bending. The article provides information on elastic bending, non-cylindrical bending, elastic...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003178
EISBN: 978-1-62708-199-3
... Abstract This article discusses the mechanics, surface preparation and principles of metal forming operations such as drawing, bending (draw bending, compression bending, roll bending, and stretch bending), spinning, and straightening of bars, tubes, wires, rods and structural shapes...
Image
Published: 01 January 2006
Fig. 25 Sheet metal bending operations. (a) Straight flanging. (b) Stretch flanging. (c) Shrink flanging. (d) Hemming. (e) Seaming. (f) Curling More
Image
Published: 01 January 2006
Fig. 6 Strain distribution for section formed by (a) stretching and (b) bending. Draw bending, compression bending, press bending, and roll bending compress the metal in various sections of the bend. Stretch bending imparts elongation throughout the bend and thus minimizes springback. More
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005149
EISBN: 978-1-62708-186-3
... testing, and simulative tests such as bending tests, stretching tests, the Ohio State University test, the drawing test, and stretch-drawing tests. It extends the correlation between simulative tests and materials properties using forming limit diagrams and circle grid analysis, and discusses...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005163
EISBN: 978-1-62708-186-3
... Ultimate tensile strength (UTS), r -bar value Bending under tension limits Angular stretch-bend test Height at failure, stretch-bendability index UTS, r -bar value Springback and curl Channel draw test Springback opening angle, radius of sidewall curl Yield strength, tool radii, draw bead...
Image
Published: 01 January 2006
Fig. 55 Deformation areas. (a) Stretching as punch contacts blank. (b) Bending and unbending over die radius. (c) Local thinning produced by stretching and bending 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
... that can occur without splitting. The article reviews various bending methods, such as draw, compression, ram and press, roll, and stretch or tension bending. It describes the process variations of incremental sheet forming (ISF), such as single-point incremental forming, two-point incremental forming...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005122
EISBN: 978-1-62708-186-3
... stretched just beyond its yield point (generally 2 to 4% total elongation) to retain permanently the contour of the form block. Controlling the amount of stretching is important to avoid splitting. The combination of stretching and bending reduces springback in the formed part. Stretch forming cannot...
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
... used in the forming. It also analyzes the various forming processes of aluminum alloys. The processes include blanking and piercing, bending, press-brake forming, contour roll forming, deep drawing, spinning, stretch forming, rubber-pad forming, warm forming, superplastic forming, explosive forming...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005135
EISBN: 978-1-62708-186-3
... Selection of Bending Method The four most common methods of bending tubing are basically the same as those used in the bending of bars: compression bending, stretch bending, draw bending, and roll bending. The method selected for a particular application depends on the equipment available, the number...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006693
EISBN: 978-1-62708-210-5
... be used for stretching, bending, and deep drawing. The formation of Lüders lines is minimized during stretch-type forming or drawing operations. Table 5 gives the recommended bend radii for 90° cold forming of sheet and plate. The H1 temper series is used for applications requiring relatively simple...
Image
Published: 01 January 2006
Fig. 10 Typical stretch-formed shapes. (a) Longitudinal stretching. (b) Transverse stretching. (c) Compound bend from extrusion. (d) Long, sweeping bend from extrusion. Dimensions given in inches More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
... or nonferrous metals. The article reviews the various types of forming processes such as blanking, piercing, fine-edge blanking, press bending, press forming, forming by multiple-slide machines, deep drawing, stretch forming, spinning, rubber-pad forming, three-roll forming, contour roll forming, drop hammer...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005143
EISBN: 978-1-62708-186-3
... Abstract This article reviews the general characteristics of copper and copper alloys and explains how these characteristics affect the behavior of strip in different types of forming operations. These forming operations include blanking, piercing, bending, drawing and stretch forming, spinning...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005129
EISBN: 978-1-62708-186-3
... such as the orientation of weld relative to metal movement in dies, the formability of TWB materials, die and press considerations, and specific factors for the drawing, stretching, and bending of steel tailor-welded blanks. bending drawing formability forming stretching tailor-welded blanks welding...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005136
EISBN: 978-1-62708-186-3
... Abstract Bars, structural shapes, and long parts are straightened by bending, twisting, or stretching. This article describes the straightening of bars, shapes, and long parts by material displacement, heating, and presses. It explains the process of parallel-roll straightening, automatic press...