US3707896A - Machine for working metals by impulses - Google Patents

Machine for working metals by impulses Download PDF

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Publication number
US3707896A
US3707896A US00144911A US3707896DA US3707896A US 3707896 A US3707896 A US 3707896A US 00144911 A US00144911 A US 00144911A US 3707896D A US3707896D A US 3707896DA US 3707896 A US3707896 A US 3707896A
Authority
US
United States
Prior art keywords
plunger
impulse chamber
chamber
guide sleeve
machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00144911A
Other languages
English (en)
Inventor
S Schekochikhin
V Stelmakh
V Kononenko
V Komnatny
S Mazichenko
V Kudryavtsev
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kharkovsky Aviatsionny Institut
Original Assignee
Kharkovsky Aviatsionny Institut
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kharkovsky Aviatsionny Institut filed Critical Kharkovsky Aviatsionny Institut
Application granted granted Critical
Publication of US3707896A publication Critical patent/US3707896A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
    • B23D15/14—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure
    • B23D15/145—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure actuated by explosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/002—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by internal combustion mechanism
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0581—Cutting part way through from opposite sides of work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8835—And means to move cooperating cutting member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8858—Fluid pressure actuated
    • Y10T83/8863—Explosive fluid

Definitions

  • ABSTRACT Assigfleel Kharkovsky Aviatsionny 1115mm A machine incorporating two tools, one of which is W fastened on the plunger of an impulse chamber and [22] Filed: May 19 1971 the other fastened on an anvil connected through a rigid coupling with the impulse chamber forming a [21] Appl. No.: 144,911 common power block.
  • the impulse chamber encloses a guide sleeve to accommodate the movable plunger and a cavity to be charged with an energy carrier.
  • the [30] Foreign Apphcatlon Pnority Data impulse chamber is fitted with side channels in com- May 26, 1970 U.S.S.R.
  • the present invention is best applicable for cutting ingots formed on continuous casting machines, for forging and stamping.
  • horizontal impulse machines for cutting ingots comprising two movable blades, one of which is fastened on the plunger of an impulse chamber containing a guide sleeve in which the plunger is travelling, and a cavity in communication with the above sleeve at regular intervals, the above cavity being filled with an energy carrier to execute detonation, while another, the counter blade, is secured on an anvil connected through a rigid coupling with the impulse chamber to form a common power block so that upon detonation in the impulse chamber the blades advance towards the ingot (see U.S. Pat. No. 3,466,960.
  • Another object of the present invention is to provide a machine for reducing wear on the rubbing surfaces of the plunger and the walls of the impulse chamber.
  • Still another important object of the invention is to provide a machine ensuring a reduction in the noise level during the exhaust of the spent working substance of the energy carrier.
  • a machine incorporating two movable tools, of which one is fastened on the plunger of an impulse chamber enclosing a guide sleeve to accom modate the travelling plunger, a cavity communicating at regular intervals with the above sleeve and being p'rimed with an energy carrier to execute detonation within the aforesaid cavity, while the other tool is secured on an anvil connected through a rigid coupling with the impulse chamber to form a common power block upon detonation in the impulse chamber both tools advance towards the metal stock to be processed, withthe impulse chamber fitted, according to the invention, with side channels communicating with the space beneath the plunger within the guide sleeve to form a common closed conduit located along the perimeter of the impulse chamber and filled with water fed via the said channels.
  • an increase in the efficiency of usage of the energy contained in the working substance of the energy carrier may be attained due to the absence (within the space beneath the plunger) of the dead space which results in inefficient expansion of the working substance.
  • leakage of the working substance through the clearance between the plunger and the walls of the impulse chamber guide sleeve is substantially decreased because the fluid, forced by the energy carrier working substance is likely to fill the said clearance keeping the above substance from leaking, due to an increased hydrodynamic flow resistance.
  • the fluid which fills up the clearance tends to prevent the plunger from rubbing dry over the guide sleeve walls and to thus provide a decrease in the noise level in exhausting the spent working substance which may be attributed to the fluid evaporation.
  • the common closed conduit tapering from the circumference to the center in a radial direction so that its expanded portion will approach in an axial direction the cavity primed with the energy carrier. This will contribute to almost complete displacement of the fluid from the closed conduit through the clearance between the plunger and the walls of the guide sleeve. As a result an adequate amount of the fluid will be admitted through the clearance to'cause the plunger to move through the working stroke.
  • accumulations of the abrasion products as well as the hard products of the working substance may be localized in one and the same zone to keep them from being entrained into the detonation cavity and to contribute thereby to the most complete removal of these products by the fluid during the working stroke of the plunger.
  • the machine under consideration comprises two- -blades 1 and 2, separated by ingot 3 to be cut, with blade 1 fastened on anvil 4 while the counter blade 2 is secured on plunger 5.
  • Theplunger 5 is enclosed in guide sleeve 6 of impulse chamber 7 having cavity 8 to be charged with an energy carrier.
  • the energy carrier use may be made of combustible mixtures of liquid or gas fuel and an oxidizer or compressed gases.
  • Detonation cavity 8 communicates at regular intervals with guide sleeve 6 via hole 9 closedv by means of the valve type locking appliance 10. With the aid of tighteners impulse chamber 7 is rigidly coupled with anvil 4 forming a power block.
  • Enclosed in guide sleeve 6 is space 12 beneath the plunger.
  • the walls of impulse chamber 7 are fitted with side channels 13 in communication with space 12: so that a common closed conduit is formed along the perimeter of the impulse chamber.
  • the conduit is filled with the fluid admitted via channels 13.
  • the closed conduit is tapering from the circumference to the center in a radial direction with its expanding portion approaching in the axial direction cavity 8, as shown in the drawing.
  • side channels 13 are equipped with non-return valves 14 communicating with a hydraulic system.
  • the direction of the water feed is indicated in the drawing by arrow A.
  • the fluid fed passes from the hydraulic system via non-return valves 14 and channels 13 into space 12 beneath the plunger, filling the closed conduit through the perimeter of chamber 7.
  • the fluid is allowed to run off through the clearance between plunger 5 and the walls of guide sleeve 6 of impulse chamber 7 over the external walls of the chamber into a drainage system (not shown).
  • Cavity 8 is charged with a combustible mixture burning, on ignition, at an increasing pressure which results in the opening of locking appliance 10.
  • the working substance in the form of high-pressure combustion products penetrate under plunger 5 and as both guide sleeve 6 and space 12 are filled with the fluid there is no dead space contributing to inefficient gas expansion.
  • plunger 5 together with lower blade 2 moves upward with a high speed.
  • the gases tend to escape through the clearance between the plunger and the walls of guide sleeve 6.
  • free outflow of the gases is possible only after they force out all the available fluid and the fluid typically has a low rate of discharge due to a relatively higher toughness and hydrodynamic flow resistance as compared with the gases.
  • the cycle is then completed and a new one may be started with all the operations repeated in thesame sequence.
  • a machine or working metals by impulses which comprises: an impulse chamber having a guide sleeve anda cavity charged with an energy carrier disposed within the chamber; a plunger enclosed in said guide sleeve; means for allowing thecavity'to communicate with the remaining portion of theichamberat regular intervalsyan anvil connected through a, rigid coupling with the said impulse chamber, forming a common power block; a plurality of tools of v which one is fastened on the plunger of the impulse chamber and the other on the said anvil; the said guide sleeve forming a space beneath the plunger; the said impulse chamber fitted with side channels in communication with the said space beneath the plunger and forming along the perimeter of the said impulse chamber a' common closed conduit filled with a fluid'fed via the said side channels; the said tools being advanced towards the metal to be processed upon detonation in the impulse chamber.
  • a machine of claim 1 in which the side channels of the impulse chamber are equipped with non-return valves to keep both the fluid and the working substance of the energy carrier'from leaking from the space beneath the plunger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Actuator (AREA)
  • Shearing Machines (AREA)
  • Forging (AREA)
US00144911A 1970-05-26 1971-05-19 Machine for working metals by impulses Expired - Lifetime US3707896A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1442016 1970-05-26

Publications (1)

Publication Number Publication Date
US3707896A true US3707896A (en) 1973-01-02

Family

ID=20453342

Family Applications (1)

Application Number Title Priority Date Filing Date
US00144911A Expired - Lifetime US3707896A (en) 1970-05-26 1971-05-19 Machine for working metals by impulses

Country Status (6)

Country Link
US (1) US3707896A (de)
AT (1) AT313681B (de)
DE (1) DE2125458B2 (de)
FR (1) FR2093699A5 (de)
GB (1) GB1339944A (de)
SE (1) SE375926B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895552A (en) * 1972-06-26 1975-07-22 France Etat Explosive type severing device for cables, rods and the like
US4030389A (en) * 1975-04-30 1977-06-21 Nikolai Borisovich Ponomarenko Machine for high-speed plastic working of materials
US4417493A (en) * 1980-04-28 1983-11-29 Nippon Kokan Kabushiki Kaisha Method for cutting off steel plate
US6401510B1 (en) * 1999-04-07 2002-06-11 3M Innovative Properties Company Method for stamping a part from a multi-layered strip

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009037396B4 (de) 2009-08-13 2012-08-16 Wafios Ag Pyrotechnisch betätigte Schneidvorrichtung
DE102016212242B4 (de) 2016-07-05 2019-02-07 Technische Universität Bergakademie Freiberg Verfahren zur Herstellung von Phosphorsäure aus phosphorhaltigen Primär- und Sekundärrohstoffen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207406A (en) * 1963-01-15 1965-09-21 Automated Building Components Center closing press
US3438129A (en) * 1966-12-27 1969-04-15 Etc Inc Cutting tool
US3466960A (en) * 1967-02-28 1969-09-16 Jury Alexandrovich Boborykin Device for cutting moving ingots,preferably those obtained by the continuous casting method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207406A (en) * 1963-01-15 1965-09-21 Automated Building Components Center closing press
US3438129A (en) * 1966-12-27 1969-04-15 Etc Inc Cutting tool
US3466960A (en) * 1967-02-28 1969-09-16 Jury Alexandrovich Boborykin Device for cutting moving ingots,preferably those obtained by the continuous casting method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895552A (en) * 1972-06-26 1975-07-22 France Etat Explosive type severing device for cables, rods and the like
US4030389A (en) * 1975-04-30 1977-06-21 Nikolai Borisovich Ponomarenko Machine for high-speed plastic working of materials
US4417493A (en) * 1980-04-28 1983-11-29 Nippon Kokan Kabushiki Kaisha Method for cutting off steel plate
US6401510B1 (en) * 1999-04-07 2002-06-11 3M Innovative Properties Company Method for stamping a part from a multi-layered strip

Also Published As

Publication number Publication date
DE2125458A1 (de) 1972-01-20
AT313681B (de) 1974-02-25
DE2125458B2 (de) 1973-03-22
FR2093699A5 (de) 1972-01-28
GB1339944A (en) 1973-12-05
DE2125458C3 (de) 1973-10-11
SE375926B (de) 1975-05-05

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