US2935038A - Apparatus for metal forming using explosive pressures - Google Patents
Apparatus for metal forming using explosive pressures Download PDFInfo
- Publication number
- US2935038A US2935038A US530828A US53082855A US2935038A US 2935038 A US2935038 A US 2935038A US 530828 A US530828 A US 530828A US 53082855 A US53082855 A US 53082855A US 2935038 A US2935038 A US 2935038A
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- US
- United States
- Prior art keywords
- chamber
- blank
- shell
- die
- pressure
- Prior art date
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- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/06—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves
- B21D26/08—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves generated by explosives, e.g. chemical explosives
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- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S100/00—Presses
- Y10S100/911—Jet or explosive
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49805—Shaping by direct application of fluent pressure
- Y10T29/49806—Explosively shaping
Definitions
- This invention relates to an apparatus for forming of metals and alloys by means of pressures developed by explosions.
- Stamping, forgingand drawing operations on metal parts ordinarily require two separate dies which are designed for cooperative action.
- My invention eliminates the requirement for one of the dies and substitutes high pressures of the type obtained by explosions to force a blank into contact with a single die surface.
- Another feature of the invention is to mount the die member within the explosion chamber so that the pressures are exerted on the die member in every direction, and in this way the die parts are subjected only to compressive forces as a result of the explosion pressures within the-chamber.
- a particularly advantageous feature of this invention is that it is adapted for hot forming of metals and alloys and without requiring interlitting cooperative die parts.
- An object of this invention is to provide a combustion forming apparatus in which a blank to be formed is placed adjacenta die cavity and wherein means are provided for controlling the pressure within the die cavity prior to and during the application of explosive pressures in the chamber.
- pressure in the die cavity may comprise vacuum forming means to minimize resistance to movement of the blank intothe die cavity or may comprise a vent connecting the die cavity to the explosion chamber or may comprise means for pressurizing the die cavity to reduce the speed of movement of the blank into the die cavity.
- Figure l shows a preferredembodiment of combustion forming apparatus utilizing this invention.
- Figure 2 is a transverse sectional view of a die member and associated parts embodying this invention.
- Figure 3 is a sectional elevation showing a modification.
- Figure 4 is a sectional elevation showing a further modiication.
- the pressure chamber shown in Figure'l isl defined between the stationary base 11 and the movable shell 12.
- the shell 12 may be slidably mounted on parallel rods 13 extending through guide bearings 14 and 15.
- a spring 16 encircling each rod 13 bears against the shell 12 at one end and against a collar 17 at the other.
- Each collar 17 is adjustably lixed upon its respective rod 13.
- Each rod 13 may be fixed to a piston 18 mounted in a cylinder 19.
- a four way valve assembly 20 of conventional design is connected to the cylinders 19 by suitable piping so ythat pressure lluid can be used to extend or retract the rods 13. Y
- the joint 21 between the stationary base 11 and the movable shell 12 is designed to be pressure-tight when The means of controlling the closed but to open suddenly to provide a large area vent Y to atmosphere whenever the pressure in the chamber 10 ICC exceeds a predetermined value. Opening of the walls of the joint 21 to form a vent passage occurs when the shell 12 is lifted away from the base 11. The lifting action may come about through the agency of pressure within the chamber 10, or may be accomplished by manipulating the valve 20 to retract the rods 13. In the latter case, the collars 17 engage the shoulders 22 to lift the shell upwardly.
- the die member 23 is positioned within the chamber 10 in a manner so that pressure within the chamber is exerted upon all sides thereof.
- the die member 23 may be formed in one piece, or, if desired, may be provided with segmental inserts 24 having shaped surfaces 25.
- a metal blank ⁇ 26 rests on the surface 27 of the die member and may be clamped in position by any convenient means.
- Releasable mechanical clamps 28 are shown in Figure 2, while Figure 3 shows electro-magnet clamps 29 and Figure 4 shows pneumatic clamp means including seal rings 30, and vacuum ports 31.
- a cover sheet or shield element 32 may be placed over the metal blank 26, if desired, and the shield is held in place by the clamping means. If desired, the shield element 32 may be larger in diameter than the metal blank 36 so that clamping means do not prevent movement of the outer edge of the metal blank 26 and in this way undue stretching of the metal of the blank may be prevented.
- the suction line 32 is connected through iittings 33 in the terminal block 34 for communication with the restricted passages 35 in the die member 23. Ports 36 connect the passages 35 with the die cavity 37.
- Means for heating the die member 23 and as shown in Figure 2 this means includes the electric resistanc'e heaters 38 having plug and socket connections 39 with the terminal block 34. Lead wires 40 supply electricity. The die inserts 24 are heated by conduction.
- the shell 12 is raised by means of the rods 13 to provide access to the die member 23.
- a blank 26 is placed in position, together with a shield 32, if desired.
- the clamping means are actuated to hold the parts 26 and 32 in place.
- the heaters 38 are energized, and a partial vacuum is produced within the die cavity 37 by means of a vacuum pump (not shown) connected to the Vsuction line ⁇ 32.
- the valve 20 is manipulated to lower the shell 12 into sealing contact with the base 11, thereby closing the'joinf 21 and sealing the chamber 10'.
- An explosion is' then set off in the chamber by means of the device 42.
- the sudden pressure of high magnitude acts over the surface of the blank 26 and drives the central portion into the cavity 37 into contact with the shaped walls 25.
- the partial vacuum within the cavity 37 minimizes resistance offered to such movement of the blank 26.
- the peak pressures within the chamber 10 are relieved as soon as the force of the explosion has carried the shell 12upward against the action of the springs 16, and for a sufficient distance to move the recess 39 away from the lip 40. Gases under pressure then escape along the joint opening 21.
- the formed part may be removed from the die member by removing the segmental inserts 24 and then separating them laterally. In some instances it is desirable to pressurize the passages 35 to assist in removing the inserts 24.
- the explosive pressures Awithin the chamber 10 act upon all sides of the die member 23, and hence the latter is subjected only to compression forces. Undercuts in the shaped portion of the die are permissible because only one die is involved instead of two. Furthermore, the fact that the die may be heated makes its possible to form such metals as titanium and its 'alloys which must be worked at high temperatures to avoid cracking or fracturing.
- the explosions may be generated in any preferred or desirable manner.
- One method is to ignitconventional explosives within the chamber by conventional means such as electrically operated tiring craps'.
- Another method is to presvsuieth'e combustion'chalr'n ber and then 'introduce afuel throughanfinjection nozale to effect combustion or comparable tfo ⁇ that used in a diesel engine.
- resonant chambers may be employed to profza the frequency desired or ya series of explosive.
- a combustion-,forming device for shaping a blank into an article, thekcombination comprising a* stationary base, a vertically.
- movable shellY l choperating.with the base to form a pressurechamber means forming a presl sure tight seal between thehbase'and shell, lapair of hydraulic cylinder assemblies having parallel piston rods projecting downward therefromfguide means lslidably mounting.
- a combustion-formingdevice for shaping a blank into anY article comprising astationaify a pressure chamber, means forming a pressure tight seal between the base and shell, a pairof hydraulic cylinder assemblies having parallel piston rods projecting therefrom, guide means slidably mounting the shell on said piston rods, means of predetermined resiliency carried on the piston rods opposing movement of the shell, cooperating parts on the piston rods and shell whereby axial movemerit of the piston rods serves to.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
May 3, 1960 v. H. CHATTEN APPARATUS FOR METAL FORMING USING EXPLOSIVE PRESSURES Filed Aug. 2e, 1955 H/W/ MZ F12-G. Z.
M670@ A( CHAI-75M IN VEN TOR.
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APPARATUS FOR METAL FORMING USING EXPLOSIVE PRESSURES This invention relates to an apparatus for forming of metals and alloys by means of pressures developed by explosions.
Stamping, forgingand drawing operations on metal parts ordinarily require two separate dies which are designed for cooperative action. My invention eliminates the requirement for one of the dies and substitutes high pressures of the type obtained by explosions to force a blank into contact with a single die surface. Another feature of the invention is to mount the die member within the explosion chamber so that the pressures are exerted on the die member in every direction, and in this way the die parts are subjected only to compressive forces as a result of the explosion pressures within the-chamber. A particularly advantageous feature of this invention is that it is adapted for hot forming of metals and alloys and without requiring interlitting cooperative die parts.
An object of this invention is to provide a combustion forming apparatus in which a blank to be formed is placed adjacenta die cavity and wherein means are provided for controlling the pressure within the die cavity prior to and during the application of explosive pressures in the chamber. pressure in the die cavity may comprise vacuum forming means to minimize resistance to movement of the blank intothe die cavity or may comprise a vent connecting the die cavity to the explosion chamber or may comprise means for pressurizing the die cavity to reduce the speed of movement of the blank into the die cavity.
IOther and related objects and advantages will appear l hereinafter.
In the drawings:
Figure l shows a preferredembodiment of combustion forming apparatus utilizing this invention.
Figure 2 is a transverse sectional view of a die member and associated parts embodying this invention.
Figure 3 is a sectional elevation showing a modification.
Figure 4 is a sectional elevation showing a further modiication.
Referring to the drawings:
The pressure chamber shown in Figure'l isl defined between the stationary base 11 and the movable shell 12. The shell 12 may be slidably mounted on parallel rods 13 extending through guide bearings 14 and 15. A spring 16 encircling each rod 13 bears against the shell 12 at one end and against a collar 17 at the other. Each collar 17 is adjustably lixed upon its respective rod 13. Each rod 13 may be fixed to a piston 18 mounted in a cylinder 19. A four way valve assembly 20 of conventional design is connected to the cylinders 19 by suitable piping so ythat pressure lluid can be used to extend or retract the rods 13. Y
The joint 21 between the stationary base 11 and the movable shell 12 is designed to be pressure-tight when The means of controlling the closed but to open suddenly to provide a large area vent Y to atmosphere whenever the pressure in the chamber 10 ICC exceeds a predetermined value. Opening of the walls of the joint 21 to form a vent passage occurs when the shell 12 is lifted away from the base 11. The lifting action may come about through the agency of pressure within the chamber 10, or may be accomplished by manipulating the valve 20 to retract the rods 13. In the latter case, the collars 17 engage the shoulders 22 to lift the shell upwardly.
The die member 23 is positioned within the chamber 10 in a manner so that pressure within the chamber is exerted upon all sides thereof. The die member 23 may be formed in one piece, or, if desired, may be provided with segmental inserts 24 having shaped surfaces 25. A metal blank` 26 rests on the surface 27 of the die member and may be clamped in position by any convenient means. Releasable mechanical clamps 28 are shown in Figure 2, while Figure 3 shows electro-magnet clamps 29 and Figure 4 shows pneumatic clamp means including seal rings 30, and vacuum ports 31.
A cover sheet or shield element 32 may be placed over the metal blank 26, if desired, and the shield is held in place by the clamping means. If desired, the shield element 32 may be larger in diameter than the metal blank 36 so that clamping means do not prevent movement of the outer edge of the metal blank 26 and in this way undue stretching of the metal of the blank may be prevented. The suction line 32 is connected through iittings 33 in the terminal block 34 for communication with the restricted passages 35 in the die member 23. Ports 36 connect the passages 35 with the die cavity 37.
Means are provided for heating the die member 23 and as shown in Figure 2 this means includes the electric resistanc'e heaters 38 having plug and socket connections 39 with the terminal block 34. Lead wires 40 supply electricity. The die inserts 24 are heated by conduction.
`In operation, the shell 12 is raised by means of the rods 13 to provide access to the die member 23. A blank 26 is placed in position, together with a shield 32, if desired. The clamping means are actuated to hold the parts 26 and 32 in place. The heaters 38 are energized, and a partial vacuum is produced within the die cavity 37 by means of a vacuum pump (not shown) connected to the Vsuction line`32. The valve 20 is manipulated to lower the shell 12 into sealing contact with the base 11, thereby closing the'joinf 21 and sealing the chamber 10'. An explosion is' then set off in the chamber by means of the device 42. The sudden pressure of high magnitude acts over the surface of the blank 26 and drives the central portion into the cavity 37 into contact with the shaped walls 25. The partial vacuum within the cavity 37 minimizes resistance offered to such movement of the blank 26. The peak pressures within the chamber 10 are relieved as soon as the force of the explosion has carried the shell 12upward against the action of the springs 16, and for a sufficient distance to move the recess 39 away from the lip 40. Gases under pressure then escape along the joint opening 21.
The formed part may be removed from the die member by removing the segmental inserts 24 and then separating them laterally. In some instances it is desirable to pressurize the passages 35 to assist in removing the inserts 24.
It should be noted that the explosive pressures Awithin the chamber 10 act upon all sides of the die member 23, and hence the latter is subjected only to compression forces. Undercuts in the shaped portion of the die are permissible because only one die is involved instead of two. Furthermore, the fact that the die may be heated makes its possible to form such metals as titanium and its 'alloys which must be worked at high temperatures to avoid cracking or fracturing.
The explosions may be generated in any preferred or desirable manner. One method is to ignitconventional explosives within the chamber by conventional means such as electrically operated tiring craps'. Another method is to presvsuieth'e combustion'chalr'n ber and then 'introduce afuel throughanfinjection nozale to effect combustion or comparable tfo` that used in a diesel engine. Where a series of repeated explosions are ref quired, resonant chambers may be employed to prof duce the frequency desired or ya series of explosive. charges may be set oifin a timed sequence." i 'l Y i' Y Having fullyv described my inventiqn, it is to beunderstood that I am not to limitedby the details herein set 'forth but that my invention'vof .the fullY scope of the appended claims, N V I' i y M I claim:V
1. In a combustion-,forming device for shaping a blank into an article, thekcombination comprising a* stationary base, a vertically. movable shellY l choperating.with the base to form a pressurechamber, means forming a presl sure tight seal between thehbase'and shell, lapair of hydraulic cylinder assemblies having parallel piston rods projecting downward therefromfguide means lslidably mounting. the shell on said piston rods, cooperating parts on the piston rod'sand shell` whereby retraction of the piston rods in an' upward direction serves to raise the shell and separate it from the base, means connecting said cylinder assemblies and the stationary base, a die member positioned vyitlklin"t'hefchaibern 'and'rhaving'a cavity shaped in accrdnc'e'vvith `arf-articley to beprnoduced, the die'mmberalso'having'a por ion for'contacting a` blank is position 'aaneen an cavity? inesperadas for 's tid'l denlyiincreasing the pressure vin the chamber .to drive at least a portion of the blank into the cavity to Vbe shaped thereby, the entire surface of said blank,` exposed to the chamber being subjected to the pressure in said chamber, said explosion means acting to lift the shell away from the base and thereby vent the chamber, and means of predetermined resiliency'urging the shell and base into pressure chamber -'forming relation, said resilient means opposing the explosion force to hold the shell and base in pressure chamber forming relation until a pressure is built up suicient to form blank as d esired, the resili ient means then yielding to the. explosiveA force to allowlthe shell and base to movefaparQ-thereby*Venting the chamber. 2. In a combustion-formingdevice for shaping a blank into anY article, the combination comprising astationaify a pressure chamber, means forming a pressure tight seal between the base and shell, a pairof hydraulic cylinder assemblies having parallel piston rods projecting therefrom, guide means slidably mounting the shell on said piston rods, means of predetermined resiliency carried on the piston rods opposing movement of the shell, cooperating parts on the piston rods and shell whereby axial movemerit of the piston rods serves to. move the shell and separate it from the base, means connecting said cylinder 'assemblies 11.1111 the @6151111111 base a die .1111211111111 121251- tioned within the chamber ,a'ndhavingvr a cavity shaped in accordance withman article to be produced, the die member also having a portion for contacting a blank in position adjacent `said cavity, an explosion means for suddenly increasing the prerssdre. in the chamber to drive at least a portion of the blank into the cavity to be shaped thereby, the entire surface of said blank that is exposed to, the Chamber being Subiesfed t9 the Pressure said chamber, said explosion means acting to move the shell away from the base in opposition tothe resilient means and thereby vent the chamber when the pressure in the chamber has been built up suiiicien'tly to form the blank as desired, and means for controlling the pressure within the space between the blank and the die cavity as said blank is shaped.
References Cited in the tile of this patent untreu STATES. PATENTS 9391702 ":..':t"Tr"''T:-f::" 9 1,921,188 Ireland A.: A ng. 8, 19h33 2,638,394 Middler Apri.' 214, i936 2,259,781 Shaw et ai. U Y Qct, 2l, 1941 2,273,713 Lawyer Feb. 17, 1942 2,284,773 Sivian et al. ,.k.. an: June V2, 17942 '2,348,921 Pavlecka v May 16, 194.4 215.154.599. Wam May s; 1945 2,377,849 Binkert et al. June l2, 1945 2,385,083 Kremerer Sept. 18, 1945 a '2,389,169 Stacy Novi 20, 17945 2,592,861 @uq Apr- 15, 1952 2,615,411 Clevenger et al.v Qct. 2,8,` 1952 2,649,067 Kranenberg V v Ang. 18, 19h53 *12,125,511 'Gevingerd-11.. De. 2,1. 1955 FonnroN PATENTS 7.444,90
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US530828A US2935038A (en) | 1955-08-26 | 1955-08-26 | Apparatus for metal forming using explosive pressures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US530828A US2935038A (en) | 1955-08-26 | 1955-08-26 | Apparatus for metal forming using explosive pressures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2935038A true US2935038A (en) | 1960-05-03 |
Family
ID=24115149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US530828A Expired - Lifetime US2935038A (en) | 1955-08-26 | 1955-08-26 | Apparatus for metal forming using explosive pressures |
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| Country | Link |
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| US (1) | US2935038A (en) |
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3044430A (en) * | 1957-10-28 | 1962-07-17 | Frank E Zeigler | Shock wave metal forming method and apparatus |
| US3060879A (en) * | 1959-02-04 | 1962-10-30 | Olin Mathieson | Explosive forming with inertia means |
| US3065720A (en) * | 1957-10-08 | 1962-11-27 | Lockheed Aircraft Corp | Apparatus and method for high velocity forming of metals using high explosives |
| US3095843A (en) * | 1958-02-13 | 1963-07-02 | Reynolds Metals Co | Passageway panel expansion apparatus |
| US3126623A (en) * | 1964-03-31 | L merrill | ||
| US3128732A (en) * | 1961-01-24 | 1964-04-14 | Ryan Aeronautical Co | Means and method for explosive forming materials at high temperatures |
| US3136049A (en) * | 1959-07-27 | 1964-06-09 | Aerojet General Co | Explosive method and apparatus for deforming metal |
| US3163141A (en) * | 1963-07-15 | 1964-12-29 | Gen Dynamics Corp | Metal forming |
| US3177689A (en) * | 1961-10-09 | 1965-04-13 | Gen Dynamics Corp | Method and apparatus for forming workpieces |
| US3194039A (en) * | 1961-12-18 | 1965-07-13 | North American Aviation Inc | Method and means for holding a workpiece during the explosive forming thereof |
| US3195334A (en) * | 1960-12-27 | 1965-07-20 | William S Filler | Explosive forming of metals employing a conical shock tube |
| US3206963A (en) * | 1962-04-04 | 1965-09-21 | Martin Marietta Corp | Method and apparatus for explosive forming of metal articles |
| US3214950A (en) * | 1963-01-11 | 1965-11-02 | Mak Maschinenbau Kiel Gmbh | Apparatus for the deformation of metal sheets and preshaped bodies under shock effect in water |
| US3218834A (en) * | 1961-08-28 | 1965-11-23 | Martin Marietta Corp | Apparatus and method for explosive forming |
| US3228221A (en) * | 1961-09-18 | 1966-01-11 | Aerojet General Co | Apparatus for forming material |
| US3228222A (en) * | 1962-04-25 | 1966-01-11 | Continental Can Co | Method and apparatus for the explosion forming of hollow objects, including such container elements as cups, cans, can ends |
| US3236080A (en) * | 1961-07-10 | 1966-02-22 | Continental Can Co | Procedure and device for the shaping of containers, container bodies or container parts, from a thin-walled first shape |
| US3252312A (en) * | 1962-04-25 | 1966-05-24 | Continental Can Co | Method and apparatus for explosive reshaping of hollow ductile objects |
| US3289447A (en) * | 1962-08-09 | 1966-12-06 | Nat Res Dev | Explosion forming process |
| US3364708A (en) * | 1956-01-12 | 1968-01-23 | Rohr Corp | Electrical discharge method of and apparatus for generating shock waves in water |
| DE1259825B (en) * | 1964-08-17 | 1968-02-01 | Heinrich Hertel Dr Ing | Device for high-performance forming |
| US3372565A (en) * | 1965-04-13 | 1968-03-12 | Foster Wheeler Corp | Corrugation forming by explosives |
| US3398561A (en) * | 1961-09-18 | 1968-08-27 | Aerojet General Co | Apparatus for forming material |
| US3423979A (en) * | 1966-08-25 | 1969-01-28 | Gulf General Atomic Inc | Method and apparatus for electrohydraulic forming |
| US3631701A (en) * | 1968-09-25 | 1972-01-04 | Heinrich Hertel | Device for shock-deformation of workpieces |
| US3641796A (en) * | 1968-09-25 | 1972-02-15 | Heinrich Hertel | Apparatus for shock-forming of workpieces |
| US3643482A (en) * | 1968-09-25 | 1972-02-22 | Heinrich Hertel | Apparatus for shock deformation of workpieces |
| US3643481A (en) * | 1968-09-25 | 1972-02-22 | Heinrich Hertel | Explosive-forming device |
| US3742746A (en) * | 1971-01-04 | 1973-07-03 | Continental Can Co | Electrohydraulic plus fuel detonation explosive forming |
| US6035935A (en) * | 1998-05-22 | 2000-03-14 | Halliburton Energy Services, Inc. | Method for establishing connectivity between lateral and parent wellbores |
| US6729406B1 (en) | 1996-12-04 | 2004-05-04 | Halliburton Energy Services, Inc. | Method and apparatus for performing cutting operations in a subterranean well |
| CN109702071A (en) * | 2019-01-11 | 2019-05-03 | 厦门理工学院 | One kind firing molding die and its forming method |
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| US939702A (en) * | 1909-01-28 | 1909-11-09 | John C Vandenbroek | Method for forming sheet-metal bodies. |
| US1921188A (en) * | 1930-07-15 | 1933-08-08 | City Machine & Tool Company | Sheet metal die |
| US2038304A (en) * | 1934-05-04 | 1936-04-21 | Alexander J Middler | Metal blowing process |
| US2259781A (en) * | 1935-04-29 | 1941-10-21 | Hydraulic Press Corp Inc | Hydraulic injection molding press |
| US2273713A (en) * | 1938-10-06 | 1942-02-17 | Hydraulic Dev Corp Inc | Plastic injection molding machine |
| US2284773A (en) * | 1940-04-16 | 1942-06-02 | Bell Telephone Labor Inc | Method of forming thin articles |
| US2348921A (en) * | 1941-08-16 | 1944-05-16 | Northrop Aircraft Inc | Draw press |
| US2375599A (en) * | 1941-06-23 | 1945-05-08 | Lewis E Walton | Combination rubber die |
| US2377849A (en) * | 1942-08-29 | 1945-06-12 | Libbey Owens Ford Glass Co | Process for bending glass |
| US2385083A (en) * | 1942-11-17 | 1945-09-18 | Kemerer Don Charles | Forming method |
| US2389169A (en) * | 1942-05-20 | 1945-11-20 | French Oil Mill Machinery | Hydraulic motor |
| US2592867A (en) * | 1944-10-04 | 1952-04-15 | Cuq Pierre | Device for cold shaping hollow articles |
| US2615411A (en) * | 1951-03-16 | 1952-10-28 | Walton S Clevenger | Method and apparatus for hydraulic work hardening |
| US2649067A (en) * | 1949-12-16 | 1953-08-18 | Kranenberg Heinrich Ewald | Device for making hollow bodies of sheet metal under hydraulic pressure |
| US2728317A (en) * | 1951-10-23 | 1955-12-27 | Walton S Clevenger | Apparatus for hydraulic die forming |
| GB742460A (en) * | 1952-06-11 | 1955-12-30 | Union Carbide & Carbon Corp | Sheet metal forming by use of detonation waves |
-
1955
- 1955-08-26 US US530828A patent/US2935038A/en not_active Expired - Lifetime
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US939702A (en) * | 1909-01-28 | 1909-11-09 | John C Vandenbroek | Method for forming sheet-metal bodies. |
| US1921188A (en) * | 1930-07-15 | 1933-08-08 | City Machine & Tool Company | Sheet metal die |
| US2038304A (en) * | 1934-05-04 | 1936-04-21 | Alexander J Middler | Metal blowing process |
| US2259781A (en) * | 1935-04-29 | 1941-10-21 | Hydraulic Press Corp Inc | Hydraulic injection molding press |
| US2273713A (en) * | 1938-10-06 | 1942-02-17 | Hydraulic Dev Corp Inc | Plastic injection molding machine |
| US2284773A (en) * | 1940-04-16 | 1942-06-02 | Bell Telephone Labor Inc | Method of forming thin articles |
| US2375599A (en) * | 1941-06-23 | 1945-05-08 | Lewis E Walton | Combination rubber die |
| US2348921A (en) * | 1941-08-16 | 1944-05-16 | Northrop Aircraft Inc | Draw press |
| US2389169A (en) * | 1942-05-20 | 1945-11-20 | French Oil Mill Machinery | Hydraulic motor |
| US2377849A (en) * | 1942-08-29 | 1945-06-12 | Libbey Owens Ford Glass Co | Process for bending glass |
| US2385083A (en) * | 1942-11-17 | 1945-09-18 | Kemerer Don Charles | Forming method |
| US2592867A (en) * | 1944-10-04 | 1952-04-15 | Cuq Pierre | Device for cold shaping hollow articles |
| US2649067A (en) * | 1949-12-16 | 1953-08-18 | Kranenberg Heinrich Ewald | Device for making hollow bodies of sheet metal under hydraulic pressure |
| US2615411A (en) * | 1951-03-16 | 1952-10-28 | Walton S Clevenger | Method and apparatus for hydraulic work hardening |
| US2728317A (en) * | 1951-10-23 | 1955-12-27 | Walton S Clevenger | Apparatus for hydraulic die forming |
| GB742460A (en) * | 1952-06-11 | 1955-12-30 | Union Carbide & Carbon Corp | Sheet metal forming by use of detonation waves |
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3126623A (en) * | 1964-03-31 | L merrill | ||
| US3364708A (en) * | 1956-01-12 | 1968-01-23 | Rohr Corp | Electrical discharge method of and apparatus for generating shock waves in water |
| US3065720A (en) * | 1957-10-08 | 1962-11-27 | Lockheed Aircraft Corp | Apparatus and method for high velocity forming of metals using high explosives |
| US3044430A (en) * | 1957-10-28 | 1962-07-17 | Frank E Zeigler | Shock wave metal forming method and apparatus |
| US3095843A (en) * | 1958-02-13 | 1963-07-02 | Reynolds Metals Co | Passageway panel expansion apparatus |
| US3060879A (en) * | 1959-02-04 | 1962-10-30 | Olin Mathieson | Explosive forming with inertia means |
| US3136049A (en) * | 1959-07-27 | 1964-06-09 | Aerojet General Co | Explosive method and apparatus for deforming metal |
| US3195334A (en) * | 1960-12-27 | 1965-07-20 | William S Filler | Explosive forming of metals employing a conical shock tube |
| US3128732A (en) * | 1961-01-24 | 1964-04-14 | Ryan Aeronautical Co | Means and method for explosive forming materials at high temperatures |
| US3236080A (en) * | 1961-07-10 | 1966-02-22 | Continental Can Co | Procedure and device for the shaping of containers, container bodies or container parts, from a thin-walled first shape |
| US3218834A (en) * | 1961-08-28 | 1965-11-23 | Martin Marietta Corp | Apparatus and method for explosive forming |
| US3398561A (en) * | 1961-09-18 | 1968-08-27 | Aerojet General Co | Apparatus for forming material |
| US3228221A (en) * | 1961-09-18 | 1966-01-11 | Aerojet General Co | Apparatus for forming material |
| US3177689A (en) * | 1961-10-09 | 1965-04-13 | Gen Dynamics Corp | Method and apparatus for forming workpieces |
| US3194039A (en) * | 1961-12-18 | 1965-07-13 | North American Aviation Inc | Method and means for holding a workpiece during the explosive forming thereof |
| US3206963A (en) * | 1962-04-04 | 1965-09-21 | Martin Marietta Corp | Method and apparatus for explosive forming of metal articles |
| US3228222A (en) * | 1962-04-25 | 1966-01-11 | Continental Can Co | Method and apparatus for the explosion forming of hollow objects, including such container elements as cups, cans, can ends |
| US3252312A (en) * | 1962-04-25 | 1966-05-24 | Continental Can Co | Method and apparatus for explosive reshaping of hollow ductile objects |
| US3289447A (en) * | 1962-08-09 | 1966-12-06 | Nat Res Dev | Explosion forming process |
| US3214950A (en) * | 1963-01-11 | 1965-11-02 | Mak Maschinenbau Kiel Gmbh | Apparatus for the deformation of metal sheets and preshaped bodies under shock effect in water |
| US3163141A (en) * | 1963-07-15 | 1964-12-29 | Gen Dynamics Corp | Metal forming |
| DE1259825B (en) * | 1964-08-17 | 1968-02-01 | Heinrich Hertel Dr Ing | Device for high-performance forming |
| US3372565A (en) * | 1965-04-13 | 1968-03-12 | Foster Wheeler Corp | Corrugation forming by explosives |
| US3423979A (en) * | 1966-08-25 | 1969-01-28 | Gulf General Atomic Inc | Method and apparatus for electrohydraulic forming |
| US3631701A (en) * | 1968-09-25 | 1972-01-04 | Heinrich Hertel | Device for shock-deformation of workpieces |
| US3641796A (en) * | 1968-09-25 | 1972-02-15 | Heinrich Hertel | Apparatus for shock-forming of workpieces |
| US3643482A (en) * | 1968-09-25 | 1972-02-22 | Heinrich Hertel | Apparatus for shock deformation of workpieces |
| US3643481A (en) * | 1968-09-25 | 1972-02-22 | Heinrich Hertel | Explosive-forming device |
| US3742746A (en) * | 1971-01-04 | 1973-07-03 | Continental Can Co | Electrohydraulic plus fuel detonation explosive forming |
| US6729406B1 (en) | 1996-12-04 | 2004-05-04 | Halliburton Energy Services, Inc. | Method and apparatus for performing cutting operations in a subterranean well |
| US6035935A (en) * | 1998-05-22 | 2000-03-14 | Halliburton Energy Services, Inc. | Method for establishing connectivity between lateral and parent wellbores |
| CN109702071A (en) * | 2019-01-11 | 2019-05-03 | 厦门理工学院 | One kind firing molding die and its forming method |
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