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conventional piercing

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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 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...
Image
Published: 01 January 2005
Fig. 19 Pierced and extruded conventional propeller barrel forging. Machined contours of barrel are shown in the sectional view in (a), and the locations of test coupons are shown in the views in (b). See Example 13 . Dimensions in figure given in inches Item Conventional forging More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004040
EISBN: 978-1-62708-185-6
... by drilling and reaming rather than by the use of small-diameter punches. Fig. 5 Three forgings that illustrate forged cavities produced by piercing. (a) Conventional, (b) and (c) seamless forging (cored), together with a (d) typical forging sequence for the production of ring gears. Dimensions given...
Image
Published: 01 January 2005
Fig. 20 Side and end views of solid (a), and pierced and reverse extruded (b), conventional landing gear cylinder forgings. Test-coupon locations for the pierced and extruded forging are shown. See Table 3 for properties. See also Example 14. Dimensions in figure given in inches Item More
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
... a tolerance of ±0.13 mm (±0.005 in.). Closer tolerances on blanks can be obtained at increased cost by using rotary-head millers or jig boring machines in constructing the dies. Because holes and slots made by steel-rule blanking are pierced with conventional punch and die elements that are added...
Image
Published: 01 January 2005
Fig. 14 Conventional aluminum alloy forgings for gimbal ring: ring-rolled (a) and finished by closed-die forging (b). See Example 8 . Dimensions in figure given in inches Item Conventional closed-die forging (revised) Material and temper Aluminum alloy 2014-T6 (a) Forging More
Image
Published: 01 January 2005
Fig. 5 Three forgings that illustrate forged cavities produced by piercing. (a) Conventional, (b) and (c) seamless forging (cored), together with a (d) typical forging sequence for the production of ring gears. Dimensions given in inches More
Image
Published: 01 January 2006
Fig. 2 Conventional blanking process. (a) Steel strip is fed into position when tool is open. (b) Guide plate holds the steel strip and punch drops. (c) Punch continues to pierce into the strip, and the part is blanked. (d) The strip is fed forward, ready for next cycle. More
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
... 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 provides pierced holes with a degree of quality and accuracy that is satisfactory for a wide variety...
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.a0005119
EISBN: 978-1-62708-186-3
... Punchability Materials used for electrical sheet can be classified in the following order with respect to decreasing ease of blanking, piercing, and notching: Conventional flat-rolled low-carbon steels such as 1008 Nonoriented silicon steels Oriented silicon steels To a large extent...
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...
Image
Published: 01 January 2005
Fig. 16 Conventional hollow cam cylinder forging, used in the manufacture of stationary propeller cams. The upper section shows machined contours in phantom, and the lower view indicates grain flow. See Example 10 . Dimensions in figure given in inches Item Conventional forging 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
.... 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...
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
... die, which made a finished part at each press stroke, replaced three dies in which 12 press strokes were required for producing one piece. The separate dies were a standard piercing and notching die, an embossing die, and a conventional V-die. Setup time for each die was 30 min. Fig. 5 Strut...
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
... for the production of gear blanks. Example 1: Combined Upsetting and Piercing of 8622 Steel Gear Blank The gear blank shown in Fig. 10 was produced more satisfactorily by upsetting and piercing than if a conventional hammer or press had been used. Less material was used, and external flash was eliminated...
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
... in seven conventional press operations was replanned for the multiple-slide production of four pieces per cycle at 200 cycles per minute. Multiple-Slide Machines Multiple-slide machines are made in a range of sizes, all similar in construction and principle. The larger machines have a longer die...
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
... in more detail in the article “Shearing of Sheet, Strip, and Plate” in this Volume. General aspects are also described in the article “Principles of Shearing, Blanking, and Piercing” in this Volume. Fig. 1 Conventional arrangement of cutters in a rotary shearing machine, for production...
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...
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
... such as conventional trimming dies and cam trimming dies. It provides information on rough and finish trimming and construction details of trimming dies. The article reviews the selection criteria of presses for a trimming operation. It provides a discussion on the scrap and material handling processes in trimming...