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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
...Abstract Abstract This article illustrates the characteristics of pierced holes and summarizes the hole wall quality. Specific guidance in selecting die clearances is provided by considering the types of edges produced with different clearances. The article discusses the effect of tool dulling...
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
...Abstract Abstract This article begins with a discussion on the fundamentals of cutting. It focuses on blanking and piercing operations in a press tool to form and shape the final part geometry. The types of piercing operations include conventional piercing, piercing with a pointed punch, piece...
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
... and dies in blanking and piercing than do steels. On drawing tools, they require larger clearances but approximately the same radii, to allow the free flow of metal and avoid excessive stretching. The amount of springback in forming aluminum alloys, which is generally more than that of steel, must...
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
... optimal piercing clearance. This is partly because the blanked edge is generally close to the stock edge, and material expansion is therefore less restricted. A piercing tool must move a great deal of material away from its cutting edge, and for longest life, the clearance should be selected to eliminate...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003181
EISBN: 978-1-62708-199-3
... interchangeably to form steel parts because this could destroy the high finish on the tools. Most aluminum alloys require smaller clearances between punches and dies in blanking and piercing than do steels. For drawing operations, similar tool radii but larger clearances are required, with respect to steel...
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
... sections of lower-alloy, air-hardening tool steel. The punch pierced the slot and flattened the bulge above the flute. The stripper formed the flute when struck by the punch holder. Deep Drawing Nickel alloys can be drawn into any shape that is feasible with deep drawing steel. The physical...
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...
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
... requirements for press-brake operations parallel those for punch-press operations (see the article “Selection of Materials for Press-Forming Dies” in this Volume). Blanking and Piercing Blanking and piercing are done in a press brake with tools of the same materials as those used in punch presses (see...
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
... of laminations for the following reasons: Tool costs are lower, and the single-notch die can be used on several different laminations. The cost is sometimes less than 5% of that for a multiple die that can pierce all the holes and slots in one press stroke. Laminations more than approximately 380 mm (15...
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
... on the front shaft. Stock is fed from the left side of the press. Sometimes, two or more piercing heads may be mounted on a single press. The slides for these heads may be mounted on either the front or rear shaft, providing flexibility in tooling. For instance, a burr resulting from the piercing operation may...
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
... piercing, in which the header tools must be stripped from the work. In these operations, the punch designs should be checked to determine that they will be released from the forging before the gripper die starts to open. Available Load and Energy When using the general rule that upsets should...
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 Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
.... Ordinarily, piercing is the fastest method of producing holes in steel sheet or strip. Generally, it is the most economical method for medium-to-high production. Pierced holes can be almost any size and shape; elongated holes are usually called slots. The accuracy of conventional tool steel or carbide dies...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005160
EISBN: 978-1-62708-186-3
... the distance between each station. From this development, the process engineer determines how wide the strip should be ( Fig. 1 , Fig. 2 , Fig. 3 , Fig. 4 , Fig. 5 , Fig. 6 , Fig. 7 ). Fig. 1 Strip development for a ring-shaped part. Note locating notch pierced in first station. Flanges formed...
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
... strokes, with the workpiece being turned after each stroke. Four more strokes were needed for embossing four holes ( Fig. 5b ). Bending required four strokes, bringing the total to 12 strokes. The progressive die, made of O1 tool steel, pierced, embossed, notched, and cut off the strut from 220 mm (8...
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
... formability lubrication multiple-slide forming piercing press forming press-brake forming rubber-pad forming spinning stainless steel stretch forming three-roll forming STAINLESS STEELS are blanked, pierced, formed, and drawn in basically the same press tools and machines as those used...
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
... metals. Semitubular self-piercing rivets are installed between a punch and a die in a typical press tool setup using a blankholder to clamp the plies together. The rivet pierces through the top layers of the joint and is deformed into the bottom layer without fully piercing it. The rivet is upset...
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
... and Tooling” in this Volume. Deep drawing is generally not done in the forming or press stations of a multiple-slide machine. Applicability Multiple-slide forming is used to produce shapes from coiled strip or wire. The maximum size of workpiece that can be formed from strip metal in a multiple-slide...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005107
EISBN: 978-1-62708-186-3
... workpiece tooling, because the jet delivers approximately 2 to 9 N (0.5 to 2 lbf) of vertical force Finished part tolerance of 0.075 to 0.25 mm (0.003 to 0.010 in.) with conventional abrasive waterjet cutting of materials under 50 mm (2 in.) thick Limitations This device cannot replace tools...