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Ejector pistons

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Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005110
EISBN: 978-1-62708-186-3
... to the blanking die plate (18) by means of the column gib unit (16) of the frame. The inner form slugs are stripped from the blanking punch (14) by the inner forming ejectors (9) and (13). Pressure is applied on the ejectors (9) and (13) and the vee-ring plate (17) by the vee-ring piston of the press via...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003973
EISBN: 978-1-62708-185-6
... of the stroke. The capacities of these forging presses are rated on the maximum force they can apply and range from about 2.7 to 142 MN (300 to 16,000 tonf). Fig. 6 Longitudinal cross section of a mechanical forging press. 1, Part transfer system; 2, Part feeder; 3, Bolster ejector; 4, Ram ejector; 5...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006429
EISBN: 978-1-62708-192-4
... ring vacuum pump Oil-sealed rotary vacuum pump Sliding vane rotary vacuum pump Rotary piston vacuum pump Rotary plunger vacuum pump Roots vacuum pump Kinetic vacuum pump Turbine vacuum pump Molecular drag pump Turbo-molecular pump Ejector vacuum pump Liquid jet vacuum pump...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005318
EISBN: 978-1-62708-187-0
... HB (a) H13 at 42–48 HRC DIN 1.2367 at 38–44 HRC H11 at 46–50 HRC H11 at 42–48 HRC H20, H21, H22 at 44–48 HRC H13 at 46–50 HRC Holder blocks 2 4140 prehardened to ∼300 HB 4140 prehardened to ∼300 HB 4140 prehardened to ∼300 HB Ejector pins 3 H13 at ndash;50 HRC (b) H13...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006525
EISBN: 978-1-62708-207-5
... the metal under pressure during solidification. Step 3: The die opens and the plunger advances to hold the casting in the ejector die (stripping it from the fixed die half). During this phase cores and slides are retracted. Step 4: Ejector pins push the casting out of the ejector die and the plunger...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005266
EISBN: 978-1-62708-187-0
... boss; cored bosses may require floating drill heads in order to align the drill with the cast tapered hole that preserves the high-integrity skin of the casting. Cores and slides provide side motions for undercuts. A core body is generally round and buried within the cover or ejector die. A slide...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006513
EISBN: 978-1-62708-207-5
... to fill the cavity. Source: Adapted from Ref 3 . Courtesy American Foundry Society Only simple permanent mold castings can be ejected from the mold without mechanical assistance. Most castings are ejected by well-distributed ejector pins, or they are confined in one mold half during opening...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005260
EISBN: 978-1-62708-187-0
... offset by the greater productivity. Venting The gap that exists between the mold halves after closing is sometimes large enough to permit air to escape and thus prevent misruns and cold shuts. Frequently, however, vents must be added to allow air to escape as the mold fills. Ejector pins provide...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005261
EISBN: 978-1-62708-187-0
... be allowed to cool further or may be immediately ejected from the mold by actuating the ejection cylinder, which pushes ejector pins through the mold, thus pushing the casting out to a waiting operator or automatic unloading device. The casting is removed from the area to a cooling line or quench bath...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
... block supports two frame members that accurately guide a vertically moving ram; the frame also supports a cylinder that, through a piston and piston rod, motivates the ram. In its lower face, the ram carries an upper die, which contains one part of the impression that shapes the forging. The lower die...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006141
EISBN: 978-1-62708-175-7
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004152
EISBN: 978-1-62708-184-9
... feedwater heaters may be located in the condenser neck. Condenser tubes are arranged to facilitate proper flow of wet steam through the array of tubes toward the air-removal region, from which the noncondensable gases are removed through a vent collector ( Fig. 1 ) by external air ejectors or vacuum pumps...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006864
EISBN: 978-1-62708-395-9
... to relate the stretch-to-clamp force via the modulus of the tie bar steel. In either case, each machine will have a set minimum/maximum thickness for a mold, along with a defined opening stroke. The ejector system on each machine will also be defined by a maximum ejector stroke that can be achieved...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003014
EISBN: 978-1-62708-200-6
... are available to assist in the optimal layout of cooling channels for uniform part cooling. Part Removal The mold is usually designed such that the part remains on the moving half of the mold when it is opened. Ejector pins are then actuated to separate the part from the mold. These ejector, or knockout...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006526
EISBN: 978-1-62708-207-5
...) H11 48–50 H13 48–50 L6 50–52 H21 47–50 T1 58–60 Ejector D2 55–57 S1 52–54 Punch S1 54–56 D2 58–60 H13 50–52 Stripper L6 56–58 Mandrel, forward S1 52–54 H13 50–52 Holder H11 42–48 H13 42–48 4130 36–44 4140 36–44 (a) Cemented...
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
... into the die; at the same time, the transfer mechanism releases the slug and moves back into position for another slug. In the die, the slug is stopped by the ejector pin, which acts as a backstop and positions the slug with the correct amount protruding for heading. The heading operation is completed...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
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
... flow from web to rib. Because of the 1° draft, lugs were provided at each end of the forging so that ejector pins could be used. Example 2: Reduction in Depth of a Forged Cavity That Eliminated Breakage of Forging Die Plug Inclusion of a cavity of excessive depth in the design of a conventional...