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hydraulic pumps

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270175
EISBN: 978-1-62708-301-0
... Abstract Several hydraulic pumps that failed in service on a particular type of aircraft were received for analysis. Hydraulic testing was not an option, so the pumps were disassembled and their plungers and cylinders were cleaned and examined. Based on their observations, investigators...
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Published: 01 August 2012
Fig. 12.4 Hydraulic pumps commonly used in presses: (a) external gear pump, (b) International Organization for Standardization symbol for constant-displacement pump, (c) bent axis axial piston pump, and (d) International Organization for Standardization symbol for variable-displacement pumps More
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Published: 01 June 2016
Fig. 9.3 Fretting damage on the hydraulic pump pad on an A357 cast aluminum transmission housing. Courtesy of the Applied Research Laboratory, The Pennsylvania State University More
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Published: 01 June 2016
Fig. 9.5 Hydraulic pump pad in the as-sprayed condition showing the Al-4047 coating. Courtesy of the Applied Research Laboratory, The Pennsylvania State University More
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Published: 01 June 2016
Fig. 9.6 Hydraulic pump pad after the high-pressure cold spray repair has been machined. The transmission has been assembled and is in the engine test stand. Courtesy of the Applied Research Laboratory, The Pennsylvania State University More
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Published: 01 December 2006
Fig. 6.18 Water hydraulic pump system More
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Published: 01 December 1995
Fig. 2-145 Cast steel impeller for hydraulic pumping station More
Book Chapter

By Eren Billur
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400181
EISBN: 978-1-62708-316-4
... Abstract This chapter discusses the design and operation of hydraulic presses. It begins by describing the role of each major component in a hydraulic system. It then explains the difference between pump-driven and accumulator-driven presses and the types of applications for which are suited...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460227
EISBN: 978-1-62708-285-3
..., and corrosion. For example, on a fighter jet aircraft, the surface of the mounting pad for a hydraulic pump on an externally mounted auxiliary transmission housing is subject to fretting, which occurs when two metal surfaces repeatedly contact each other and degrade through oxidation and mechanical wear ( Ref...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400161
EISBN: 978-1-62708-316-4
...-point die cushions where each individual cushion can be controlled separately to optimize metal flow in the flange, between the die and the blank holder. Fig. 11.29 Schematic of a simple point servo-drive die cushion. Source: Ref 11.5 With the servo motors driving the hydraulic pumps...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030200
EISBN: 978-1-62708-282-2
..., in which gas in injected at some point down the hole to lighten the fluid and cause flow; electrical submerged-pump wells, which use multistage centrifugal pumps placed near the bottom of the well; and hydraulically pumped wells, which use positive-displacement pumps driven hydraulically by oil or water...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400203
EISBN: 978-1-62708-316-4
... cylinder and slide cylinders are filled with hydraulic fluid from the tank using a prefill valve. Once the die touches the blank holder, the prefill valve is closed for both the compensating and slide cylinder. The pressure in the slide cylinder is generated by either an accumulator or a pump-driven system...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980323
EISBN: 978-1-62708-342-3
.... These accumulator systems were used previously as central power supplies for several presses. They are now occasionally found in large extrusion plants operating a large number of presses for aluminum and copper alloys. The water hydraulic drive pumps for operating the presses are high-pressure pumps with three...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200007
EISBN: 978-1-62708-354-6
... or more steel castings. The rudder frame, hawse pipes, davits, struts, chocks, cleats, bitts, propellers, and anchors are steel castings or assemblies of one or more steel castings. Turbines, piping components, pumps, compressors, and other operating machinery contain many steel castings. The steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 15 June 2021
DOI: 10.31399/asm.tb.mpktmse.t56010001
EISBN: 978-1-62708-384-3
..., these systems are better suited for large samples and materials with high strengths. For example, steels tested in 12.7-mm (0.5-in.)-diameter bars often require hydraulic machines. Another factor that must be considered is that hydraulic machines consist of the frame, controller, and a hydraulic pump, while...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040115
EISBN: 978-1-62708-300-3
... between the pumping system and the press cylinder. Fig. 11.2 Schematic illustration of two types of hydraulic press drives. (a) Push-down drive: 1, stationary cylinder cross head; 2, moving piston-ram assembly; 3, stationary press bed with return cylinders. (b) Pull-down drive: 1, movable cylinder...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250139
EISBN: 978-1-62708-345-4
... pressure less than 6.9 MPa (1000 psi) but subject to high vibration and heavy service; hardened by heat treating FC-0208 or FN-0106 6.4–6.8 Medium high pressure 6.9–8.6 MPa (1000–1250 psi) for short intervals; hardened by heat treating FC-0208 type 6.2–6.5 General-purpose hydraulic pumps up...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200158
EISBN: 978-1-62708-354-6
... welding. Total weight over 200 tons Fig. 11-8 A. Stay-ring for hydraulic turbine on boring mill. Outside diameter 37 ft (11.27 m), height 15 ft (4.57 m) Fig. 11-9 Cast-weld intercept valve. An assembly weld of a valve casting and a flanged elbow casting f~* Fig. 11-10 Cast-weld pump. Two cast halves...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980001
EISBN: 978-1-62708-342-3
... enabled larger billets to be used, thus giving an economic production. The water hydraulic extrusion press was powered by a pressurized water system consisting of pumps and accumulators. The hot billets were manually loaded into the container using tongs. Hand-operated valves were used to control...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050335
EISBN: 978-1-62708-311-9
... Abstract This appendix discusses the sizing, scaling, and configuration requirements of the basic components in a quench cooling system, including tanks, pumps, hoses, and inlet and outlet fixtures and the materials from which they are made. quench cooling systems quench rings...