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press brakes
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Book Chapter
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005113
EISBN: 978-1-62708-186-3
... Abstract Press brakes are a common and versatile type of equipment for bending metal by delivering an accurate vertical force in a confined longitudinal area. This article begins with a discussion on the design, widening methods, and types of materials used in press brakes. It focuses...
Abstract
Press brakes are a common and versatile type of equipment for bending metal by delivering an accurate vertical force in a confined longitudinal area. This article begins with a discussion on the design, widening methods, and types of materials used in press brakes. It focuses on the two basic drive systems used in operating press brakes, namely, mechanical and hydraulic drive systems. The article also provides an outline on the tooling associated with press-brakes.
Book Chapter
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005177
EISBN: 978-1-62708-186-3
... Abstract This article discusses the principles of the press-brake forming process and its applicability with an example. It describes the types of press brakes and examines some considerations, which help in the selection of machine. The article provides information on flattening dies...
Abstract
This article discusses the principles of the press-brake forming process and its applicability with an example. It describes the types of press brakes and examines some considerations, which help in the selection of machine. The article provides information on flattening dies, gooseneck punches, wiping dies, channel dies, arbor-type punches, box-forming dies, curling dies, beading dies, and cam-driven dies, with illustrations. It discusses the tool material selection for various operations. The article explains the procedures used for producing different shapes, including simple boxlike parts, panels, flanged parts, architectural columns, fully closed parts, and semicircular parts. It examines the effect of work metal variables on results in press-brake operations. The article also reviews stock tolerances, design, and condition of machines and tools, which help in obtaining good dimensional accuracy.
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Published: 01 January 2006
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Published: 01 January 2006
Fig. 14 Comparison of stroke capabilities of two standard press brakes: a 100 ton hydraulic brake (left) and a 1000 ton mechanical brake (right). Work metal: mild steel 25 mm (1 in.) thick by 0.46 m (1 1 2 ft) long. Die opening: 255 mm (10 in.) wide. Tonnage requirement: 81 tons
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Published: 01 January 2006
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Published: 01 January 2006
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Published: 01 January 2006
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Published: 01 January 2006
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Published: 01 January 2006
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Published: 01 January 2006
Fig. 8 Hydraulic press brake with 1.8 m (6 ft) bed length and 440 kN (50 tonf) load capacity with a 4 kW (5 hp) motor
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Published: 01 January 2006
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Published: 01 January 2006
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Published: 01 January 2006
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Published: 01 January 2006
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Published: 01 January 2006
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Published: 01 January 2006
Fig. 18 American-style press-brake tooling. (a) Closeup. (b) Tooling with hydraulic clamping. (c) Removing tooling from tool clamp. Courtesy of Wila USA
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Published: 01 January 2006
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Published: 01 January 2006
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Published: 01 January 2006
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Published: 01 January 2006
Fig. 2 Minimum bending limits for press-brake versus slower (hydraulic) bending of beryllium sheet in transverse and longitudinal directions. r , bend radius; t , sheet thickness
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