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fine-edge blanking

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
... 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...
Book Chapter

By Robert Bolin
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003982
EISBN: 978-1-62708-185-6
.... The smaller the mesh size, the better and more accurate the simulation's results will be. Because of the massive amount of variables in ring rolling and the transformation the ring undergoes in each revolution, a fine mesh simulation of a single rotation of even a simple design ring would take days to...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004012
EISBN: 978-1-62708-185-6
... roughness of dies is usually attained easily, regardless of the tool steel selected. Required finishes for fine-pitch threads can be obtained most economically by using A2 and either machining or grinding the die threads. As a short-term solution for a deficient die setup, which is the cause of most early...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004004
EISBN: 978-1-62708-185-6
... the end, often as a finished bolt. Nut formers have a transfer mechanism that rotates the blank 180° between one or two dies or all the dies. Therefore, both ends of the blank are worked, producing workpieces with close dimensions, a fine surface finish, and improved mechanical characteristics. A...
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
... is loaded above the compressive yield strength and is held in this condition during coining. Dwell time under load is important for the development of dimensions in sizing and embossing; it is also necessary for the reproduction of fine detail, as in engraving. Trimming. Flash that develops...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.9781627081863
EISBN: 978-1-62708-186-3
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003194
EISBN: 978-1-62708-199-3
... chemical or electrochemical attack of preferentially exposed surface. Essential steps: cleaning part; masking with tapes or resistant paints, or printing, using photoengraving techniques; etching; demasking; cleaning. Two processes involved: chemical milling, chemical blanking Fine abrasive particles...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.9781627081979
EISBN: 978-1-62708-197-9
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003180
EISBN: 978-1-62708-199-3
... deep drawing stainless steel often need 100% more ram force and the necessary frame stiffness to support this greater force. For the fine grain structure that is best for cold forming, heat-resistant alloys must be cold worked (reduced) beyond a critical percentage reduction and then annealed...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003152
EISBN: 978-1-62708-199-3
... Heading dies (severe impact), hot-forming dies, swaging dies 11–25 Medium to coarse 84 Back extrusion punches, hot-forming punches 11–15 Medium 88 Back extrusion punches, blanking punches, and dies for high shear strength steel 10–12 Fine to medium 89 Powder compacting dies, Sendzimir...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001232
EISBN: 978-1-62708-170-2
... finish ( Table 1 ). In rough grinding processes, material removal occurs at a rapid rate, with less emphasis on surface roughness/tolerances. In contrast, high-precision methods emphasize the attainment of fine surface finish and close tolerances at the expense of material removal rates. In precision...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003186
EISBN: 978-1-62708-199-3
... with fine grain structures are easier to machine than non-uniform materials or materials with coarse grain structures. Annealing and tempering also usually increase machinability, although annealed materials are more prone to chip-control problems. Hard alloying elements such as chromium, nickel, and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003113
EISBN: 978-1-62708-199-3
... robotics, and to secondary operations, in order to obtain the process conditions that are most efficient. This efficiency is maintained by optimizing the process line layout. Depending on the fineness of the starting powder and the sintering temperature, densities of 93 to 98% of full density are...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000607
EISBN: 978-1-62708-181-8
... fatigue crack grew slowly, and beach marks became obscured by oxide. ∼3× Fig. 261 Fatigue-fracture surface of a suspension spring of AISI 10B62 steel wire with a hardness of 460 HB. Note the fine seam (at arrow), which is the fatigue-crack origin. 2× Fig. 262 Fatigue-fractured valve...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003983
EISBN: 978-1-62708-185-6
... crumbling of the work metal during swaging. In the cold swaging of steel (at room temperature), maximum swageability is obtained with spheroidized microstructures. Pearlitic, annealed microstructures are less swageable than spheroidized microstructures, depending on the fineness of the pearlite and on the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003055
EISBN: 978-1-62708-200-6
... between flat laps Sometimes called fine grinding, flat honing finds the abrasive grain mixed into a bonded wheel or a disk that also acts as the reference surface. The abrasive grains are oriented in a random way that exposes sharp edges for the surface of a part to pass over. A relative...
Book Chapter

By Erhard Klar
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003185
EISBN: 978-1-62708-199-3
..., the manufacture of large part numbers, at least 1,000 to 10,000, is usually essential if competition with alternate manufacturing processes, such as machining, die and investment casting, die forging, fine blanking, and stamping, is to be successful. This explains the preferred use of P/M in...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009016
EISBN: 978-1-62708-187-0
... achieved only by severely chilling one portion of the solidifying casting. Generally, the goal in risering such alloys is not to eliminate shrinkage but to ensure that it is finely dispersed (microporosity). For alloys with an intermediate freezing range ( Fig. 8 ), the mode of solidification will...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
... provide relative guidance between the moving upper and lower assemblies. After the blow, hydraulic fluid enters the cylinder, returning the upper and lower rams to their starting positions. The gas is recompressed by the floating pistons, and the gas seals at the lower edges of the drive pistons are...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003053
EISBN: 978-1-62708-200-6
... carriers, or cutting tools can be produced at rates up to several thousand per minute. Pressing pressures in the range of 20 to 300 MPa (3 to 45 ksi) are used. Low pressures are common for clay-based materials, whereas higher pressures are required for fine technical ceramics. Because of its flexibility...