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cam piercing

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Published: 01 January 2006
Fig. 21 Piercing with a spring-return cam More
Image
Published: 01 January 2006
Fig. 22 Piercing with a positive-motion cam More
Image
Published: 01 January 2006
Fig. 13 Bracket in which accurately aligned holes on opposing flanges were cam pierced in one press stroke after forming. Dimensions given in inches More
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
...-forming operations, namely, rectangular blank, rough blank, partially developed blank, and fully developed blank. It concludes with a discussion on the process capabilities, applications, and limitations of fine-edge blanking and piercing. blanking cam piercing conventional piercing...
Image
Published: 01 January 2006
Fig. 28 Cam that was blanked and pierced in a compound die within an envelope tolerance of 0.13 mm (0.005 in.) total indicator reading. Dimensions given in inches 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
... 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...
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
... component of the multiple-slide machine is the piercing head. Die sets for piercing, cutting, trimming, blanking, or embossing are mounted in this head. The die components are mounted on edge on a solid backup plate. The punch plate retains the punch components and is mounted on a slide driven by cams...
Image
Published: 01 January 2006
Fig. 12 Part in which accurately aligned slots were pierced (after forming) by two punches that were cam operated from the inside. Dimensions given in inches More
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...
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
.... Air jets are used where possible to eject the pierced slugs from the die. The forming of lanced detents and flanged holes toward the punch side of the blank can be done by actuating the punches with cams on the rear camshaft. Additional movements of die units can be obtained from any of the three...
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 Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005108
EISBN: 978-1-62708-186-3
... classifications: Rectangular blanks Rough blanks Partially developed blanks Fully developed blanks These types of blanks are described in more detail in the section “Blanking Operations” in the preceding article “Blanking and Piercing” in this Volume. This classification of blanks has...
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
... to the procedure for reviewing the design of cavities and holes to be incorporated in forgings. The article also describes forging designs in which cavities and holes are related to rib and web designs, punchout, piercing, extruding, and combinations of these processes. extruding forging machining...
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
..., and piercing (for example, see the articles “Blanking of Low-Carbon Steel” and “Piercing of Low-Carbon Steel” in this Volume). The choice of forming method depends on the desired size, configuration, and production quantities of a part. For example, press forming (where a punch presses the workpiece...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
... or nonferrous metals. The article reviews the various types of forming processes such as blanking, piercing, fine-edge blanking, press bending, press forming, forming by multiple-slide machines, deep drawing, stretch forming, spinning, rubber-pad forming, three-roll forming, contour roll forming, drop hammer...
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 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 thickness...
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
... sockets that require simultaneous upsetting and piercing. Forgings that require center upsets (not at bar end) or offset upsets can also be made. In many cases, hot upsetting is used as a means of preparing stock for subsequent forging on a hammer or in a press. Hot upsetting is also occasionally used...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003987
EISBN: 978-1-62708-185-6
... (48 in.) lengths. Coin cam contour, pierce, and blank in a progressive die. High point on the cam was 3.12 to 3.15 mm (0.123 to 0.124 in.) thick. Pack anneal at 900 to 925 °C (1650 to 1700 °F). The part had to be free of heat checks and scale. Restrike to flatten and coin to 3.09±0.076 mm...
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
..., 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...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005115
EISBN: 978-1-62708-186-3
... be triggered by a microswitch or air pilot valve generally mounted so as to be operated by a rotary cam on the crankshaft or a linear cam on the ram of the press. This method is most useful on special machines where a slide may not be adjacent to the feed, or in circumstances where long or short press strokes...