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rotary shearing

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Published: 01 November 2013
Fig. 3 Conventional arrangement of cutters in a rotary shearing machine, for production of a perpendicular edge. Source: Ref 1 More
Image
Published: 01 February 2005
Fig. 13.7 High-velocity rotary-type shear. (a) Tooling for one billet per revolution. (b) Tooling for two billets per revolution [ Altan et al., 1973 ] More
Image
Published: 01 March 2000
Fig. 2 Schematic of a direct extrusion press. 1, counter platen; 2, die slide or rotary die head; 3, shear; 4, billet container; 5, moving crosshead; 6, stem; 7, cylinder crosshead; and 8, oil tank with drive and controls. Source: Schloemann-Siemag More
Image
Published: 01 March 2000
Fig. 5 Schematic of a direct extrusion press for seamless hollow and tube. 1, counter platen; 2, die slide or rotary die head; 3, shear; 4, billet container; 5, moving crosshead; 6, stem; 7, mandrel; 8, piercer; 9, cylinder crosshead; and 10, oil tank with drive and controls. Source More
Image
Published: 30 November 2013
Fig. 5 Single-overload torsional fracture on the transverse shear plane of a shaft of medium-carbon steel of moderate hardness. Note that the originally straight splines have been twisted in a counterclockwise direction. Final rupture was slightly off center due to a relatively slight bending More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260055
EISBN: 978-1-62708-336-2
.... Tubes from harder aluminum alloys are generally done from hollow short billets with the floating or fixed mandrel on the stem. Fig. 5 Schematic of a direct extrusion press for seamless hollow and tube. 1, counter platen; 2, die slide or rotary die head; 3, shear; 4, billet container; 5, moving...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740163
EISBN: 978-1-62708-308-9
... sawing is a cutting (machining) operation, sawing and abrasive jet cutting are covered in Chapter 5, “Machining,” in this book. Shearing of sheet and plate is broadly classified by the type of blade (cutter) used—straight or rotary. Straight-blade shearing is used for squaring and cutting flat...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270122
EISBN: 978-1-62708-301-0
... of shear deformation. Equiaxed dimples in region B are typical of final fracture. Also, rubbing on the periphery of the fracture surface indicates that there was relative rotary motion between the two surfaces after fracture. The fact that the top end of the failed shaft suffered no bending...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040151
EISBN: 978-1-62708-300-3
.... A radically different design, a high-velocity rotary-type shear, is seen schematically in Fig. 13.7 . In this machine, the energy is provided by a flywheel that carries an open-type moving blade. According to tooling arrangement, one or two billets per revolution can be obtained. With this shear, production...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400005
EISBN: 978-1-62708-316-4
... remove a dangerous sheared edge ( Fig. 2.6 ): Equipment: mechanical and hydraulic presses, tabletop hammer Materials: carbon and alloy steels, (in sheet form) Process Variations: rotary hemming, robot hemming Applications: in automobiles to join inner and outer doors and truck lid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040141
EISBN: 978-1-62708-300-3
... Abstract Prior to forging, it is often necessary to preform billet stock to achieve adequate material distribution. This chapter discusses the equipment used for such operations, including transverse rolling machines, electric upsetters, ring-rolling mills, horizontal presses, and rotary...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630071
EISBN: 978-1-62708-270-9
... Stress systems are best studied by examining free-body diagrams, which are simplified models of complex stress systems. Figure 1 shows the orientation of the normal (tensile and compressive) stresses and the shear (sliding) stresses, which are 45° to the normal stresses. Free-body diagrams of shafts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500179
EISBN: 978-1-62708-317-1
... lubrication between the tube and the mandrel. Some of the defects can be prevented by selecting an appropriate bending method. Bending Methods The various tube-bending methods can be categorized into four groups: rotary draw bending, compression bending, ram bending, and press bending ( Fig. 9.12...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370021
EISBN: 978-1-62708-447-5
... The main cylindrical housing is lined with a wear-resistant base and an outer shell. Return sand and bonding materials are fed into the mixer from overhead hoppers. Water is introduced to the mixture after a few seconds of premixing. The bridge motor works through a gear box; it turns a rotary arm...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740103
EISBN: 978-1-62708-308-9
..., including open-die and closed-die forging, hot upset and roll forging, high-energy-rate forging, ring rolling, rotary swaging, radial and orbital forging, isothermal and hot-die forging, precision forging, and cold forging. The chapter also includes information on cold and hot extrusion and drawing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250089
EISBN: 978-1-62708-345-4
... and low-alloy steel gears with high-speed steel tools Table 3 Feeds and speeds for the shaping of carbon and low-alloy steel gears with high-speed steel tools Material Hardness, HB Condition Number of cuts (a) Gear tooth size Rotary feed per cutter stroke (102 mm, or 4 in., pitch diameter...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040007
EISBN: 978-1-62708-300-3
... of the interface layer Lubricity and frictional shear stress Characteristics related to lubricant application and removal Deformation Zone The mechanics of deformation, model used for analysis Metal flow, velocities, strain, strain rate (kinematics) Stresses (variation during deformation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500249
EISBN: 978-1-62708-317-1
... Forming, An Environment-Friendly Rotary Forming , Key Eng. Mater. , Vol 344 , 2007 , p 947 – 953 10.4028/www.scientific.net/KEM.344.947 12.29 Steward J.D. , Shear Spinning Rewards Designer with Automatically Precise Parts , SAE J. , Vol 78 ( No. 2 ), 1970 , p 43 – 45 Selected...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400233
EISBN: 978-1-62708-316-4
..., commonly formed for rein- forcement. (2) Stationary platen of a press to which the lower die assembly is attached. (3) Stationary part of the shear frame that sup- ports the material being sheared and the fixed blade. beaded flange A flange reinforced by a low ridge, used mostly around a hole. bellmouth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.9781627083164
EISBN: 978-1-62708-316-4