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piercing shear

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Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005116
EISBN: 978-1-62708-186-3
...Abstract Abstract Many shearing, blanking, and piercing operations are based on the same underlying principles of shear mechanisms. This article provides information on the various operations associated with die cutting and describes three phases involved in the shear cutting or punching action...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005104
EISBN: 978-1-62708-186-3
... and straight knife cutters. The article also discusses the selection of materials for blanking and piercing dies and provides examples that illustrate the various types of tooling changes for blanking high-carbon steel. blanking coatings cold shearing high-carbon steel hot shearing lubrication...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005109
EISBN: 978-1-62708-186-3
... and the use of small and large clearance. It informs that the force needed to pierce a given material depends on the shear strength of the work metal, the peripheral size of the hole or holes to be pierced, stock thickness, and depth of shear on the punch. The article discusses the presses and tools used...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005117
EISBN: 978-1-62708-186-3
... countersinking cutting die assembly extruding fine-edge blanking fully developed blanks lancing partially developed blanks piece-and-extrude operation piercing piercing shear piercing tools pointed punch piercing punch assembly rectangular blanks rough blanks sheet-forming slotting stripper...
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
... techniques for these alloys and provides several examples of these techniques, which include shearing, blanking, piercing, deep drawing, spinning, explosive forming, bending, and expanding/tube forming. age-hardenable alloys bending blanking cobalt alloys cold forming deep drawing explosive...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005180
EISBN: 978-1-62708-186-3
... the average comparable die sets used in conventional presses. Piercing, shearing, and forming units are of simple design and are relatively inexpensive to build. Die details are mostly standard parts and can often be made at the plant where the machine is located. Forming units are fastened to the cam...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005108
EISBN: 978-1-62708-186-3
... as much compressive loading on the work metal as possible. A part blanked using clearance much greater than normal may exhibit double shear, which is ordinarily evident only with extremely small clearance (see edge types 4 and 5 in Fig. 2 in the article “Piercing of Low-Carbon Steel...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003980
EISBN: 978-1-62708-185-6
... impression to the next in sequence to give the forging a final shape. Each move constitutes a pass. Three or more passes are commonly used to complete the upset, and if flash removal (trimming) is a part of the forging operation, another pass is added. Piercing and shearing passes can also...
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
..., and self-pierce riveting. clinched joints clinching crimping fatigue behavior forming mechanical joining riveting self-pierce riveting MECHANICAL JOINING is a process where two or more components are held together through the use of either an integral feature of components or through...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006501
EISBN: 978-1-62708-207-5
... designation Material specification Rivet material Ultimate shear strength (a) Rivet material Ultimate shear strength Min Max MPa ksi MPa ksi MPa ksi 5056-H32 165 24 NA 5056-H321 193 28 B SAE QQ-A-430 or ASTM B316 2117-T4 179 26 NA 2117-T3 206 30 AD SAE QQ-A-430...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005119
EISBN: 978-1-62708-186-3
...Abstract Abstract This article discusses the presses, auxiliary equipment, and dies used in the blanking and piercing of commonly used magnetically soft materials, namely, low-carbon electrical steels and oriented and nonoriented silicon electrical steels. It describes the effect of stock...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005118
EISBN: 978-1-62708-186-3
... clearance is allowed, the edges will be ragged. Secondary shearing will take place, adding to the load on the press and the wear on the cutting steels. Excessive clearance will cause the edge of the cut to draw down, leaving a burred edge. Many of the same clearances for piercing operations apply generally...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005139
EISBN: 978-1-62708-186-3
... stainless coils do not seem to chemically react with the stainless surface and have been found to serve as a barrier coating, reducing corrosion potential for coils seeing moisture in transit. Blanking and Piercing The shear strength of stainless steel is approximately twice that of low-carbon steel...
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
... punch and die. The shear strengths of the commonly used aluminum alloys range from 62 to 338 MPa (9 to 49 ksi), whereas the shear strength of a typical low-carbon steel is 240 to 460 MPa (35 to 67 ksi). Tool Materials A discussion of materials for blanking and piercing dies is given...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005162
EISBN: 978-1-62708-186-3
... on sheared blanks 220 mm (8 11 16 in.) wide by 464 mm (18 1 4 in.) long. The press-brake operation consisted of piercing five holes in the flange and one in the center and notching one corner ( Fig. 5a ). The other holes and the three other corner notches were produced with three 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
.... On the other hand, lubricants containing sulfur, chlorine, or solid additives such as zinc oxide or lead carbonate can, if not removed from the nickel surface, cause embrittlement of the metal. Shearing, Blanking, and Piercing Oils incorporating sulfur or chlorine-containing additives may be used. Water...
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
..., chipping, or grinding to remove or minimize surface imperfections. However, despite surface conditioning, the product is still likely to contain some surface imperfections. Cutting Semifinished steel products for forging are generally cut to length by hot shearing. Hot sawing or flame cutting may...
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
...-down effect, which results from the force of the shearing operation, marks the point where shear begins; burr, where shear ends. Fig. 26 Allowances (a) and tolerances (b) for hot-pierced holes that are to be broached Fig. 28 Workpiece configurations that emphasize cost-effectiveness...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005165
EISBN: 978-1-62708-186-3
.... The stock-feed slide is reciprocated through a system of links from a crank disk keyed to the left-hand camshaft of the machine ( Fig. 1 , M, O, and C). Press Station The die used for piercing, trimming, embossing, and minor forming of the stock is mounted in the press station, which consists...
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
... for contour roll forming. Simple V-bends or more intricate shapes can be formed in a press brake. Operations such as blanking, piercing, lancing, shearing, straightening, embossing, beading, wiring, flattening, corrugating, and flanging can also be carried out in a press brake. Information on press-brake...