FR2397245A1 - Process deforming plane metal sheet into corrugated form - uses controlled explosion in water to push sheet onto matrix with vacuum in voids - Google Patents

Process deforming plane metal sheet into corrugated form - uses controlled explosion in water to push sheet onto matrix with vacuum in voids

Info

Publication number
FR2397245A1
FR2397245A1 FR7722827A FR7722827A FR2397245A1 FR 2397245 A1 FR2397245 A1 FR 2397245A1 FR 7722827 A FR7722827 A FR 7722827A FR 7722827 A FR7722827 A FR 7722827A FR 2397245 A1 FR2397245 A1 FR 2397245A1
Authority
FR
France
Prior art keywords
sheet
matrix
voids
vacuum
water
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.)
Granted
Application number
FR7722827A
Other languages
French (fr)
Other versions
FR2397245B1 (en
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.)
SECATHEN SA
Original Assignee
SECATHEN SA
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 SECATHEN SA filed Critical SECATHEN SA
Priority to FR7722827A priority Critical patent/FR2397245A1/en
Publication of FR2397245A1 publication Critical patent/FR2397245A1/en
Application granted granted Critical
Publication of FR2397245B1 publication Critical patent/FR2397245B1/fr
Granted legal-status Critical Current

Links

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

Abstract

The process derives corrugated metal sheet for an originally plane sheet (1) with one or more straight edges. The sheet (1) is fastened on a matrix (2) on a substantial base plate (3) and the assembly (1, 2, 3) is submerged in a firing (4) pit. A vacuum is then created in the voids between the sheet (1) and the matrix ( ), and finally a controlled explosion is initiated in the pit. The force of the explosion is transmitted to the water (5) which deforms the sheet (1) onto the matrix (2). The assembly (1, 2, 3) is then removed from the matrix (2). The explosive charges (6) are of a remote controlled type and are placed above the sheet (1) in concentrations over the voids in the matrix (2).
FR7722827A 1977-07-13 1977-07-13 Process deforming plane metal sheet into corrugated form - uses controlled explosion in water to push sheet onto matrix with vacuum in voids Granted FR2397245A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7722827A FR2397245A1 (en) 1977-07-13 1977-07-13 Process deforming plane metal sheet into corrugated form - uses controlled explosion in water to push sheet onto matrix with vacuum in voids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7722827A FR2397245A1 (en) 1977-07-13 1977-07-13 Process deforming plane metal sheet into corrugated form - uses controlled explosion in water to push sheet onto matrix with vacuum in voids

Publications (2)

Publication Number Publication Date
FR2397245A1 true FR2397245A1 (en) 1979-02-09
FR2397245B1 FR2397245B1 (en) 1980-07-11

Family

ID=9193773

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7722827A Granted FR2397245A1 (en) 1977-07-13 1977-07-13 Process deforming plane metal sheet into corrugated form - uses controlled explosion in water to push sheet onto matrix with vacuum in voids

Country Status (1)

Country Link
FR (1) FR2397245A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988007899A1 (en) * 1987-04-15 1988-10-20 The Research Foundation Institute Pty. Limited A method of forming metal
FR2718985A1 (en) * 1994-04-22 1995-10-27 Packinox Sa Method and device for forming a corrugated metal sheet and corrugated metal sheet obtained by this process.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988007899A1 (en) * 1987-04-15 1988-10-20 The Research Foundation Institute Pty. Limited A method of forming metal
US5016457A (en) * 1987-04-15 1991-05-21 Research Foundation Institute Pty. Limited Method of forming metal
FR2718985A1 (en) * 1994-04-22 1995-10-27 Packinox Sa Method and device for forming a corrugated metal sheet and corrugated metal sheet obtained by this process.
US5626051A (en) * 1994-04-22 1997-05-06 Packinox Process and device for forming a corrugated metal sheet and corrugated metal sheet obtained by this process

Also Published As

Publication number Publication date
FR2397245B1 (en) 1980-07-11

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