JPS59159220A - Bending method of sheet metal or the like - Google Patents

Bending method of sheet metal or the like

Info

Publication number
JPS59159220A
JPS59159220A JP3199983A JP3199983A JPS59159220A JP S59159220 A JPS59159220 A JP S59159220A JP 3199983 A JP3199983 A JP 3199983A JP 3199983 A JP3199983 A JP 3199983A JP S59159220 A JPS59159220 A JP S59159220A
Authority
JP
Japan
Prior art keywords
bending
vertex
welding
box
plate
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
JP3199983A
Other languages
Japanese (ja)
Inventor
Seizaburo Fujisawa
Original Assignee
Orion Mach Co Ltd
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 Orion Mach Co Ltd filed Critical Orion Mach Co Ltd
Priority to JP3199983A priority Critical patent/JPS59159220A/en
Publication of JPS59159220A publication Critical patent/JPS59159220A/en
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00Making hollow objects
    • B21D51/16Making hollow objects characterised by the use of the objects
    • B21D51/52Making hollow objects characterised by the use of the objects boxes, cigarette cases, or the like

Abstract

PURPOSE:To make an external appearance of a joined part smooth and to enhance an operability in welding by performing a bending by providing a notch having a shape of isosceles triangle, which is formed so that a perpendicular dropped from its vertex coincides with a bending line of one side and the adjoining bending lines intersect each other at the vertex, in manufacturing a box body. CONSTITUTION:In manufacturing a box body by bending a metallic plate at one stroke after providing notches to the plate; a notch 5 having an isoscels triangle shape, provided to the position where an intersection 6 of bending lines 2a, 2b is a vertex of the triangle and a perpendicular 7 dropped from the vertex coincides with the bending line 2b at one side, is cut out. Next, the plate is bent along the bending lines 2a, 2b, and a joining part is butt-welded. By this method, an external appearance of the joining part is made smooth, and an enclosing construction by welding is made practicable, and the safety of operation is improved. This method is also applicable to the manufacturing of box body by two times welding.
JP3199983A 1983-02-28 1983-02-28 Bending method of sheet metal or the like Granted JPS59159220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3199983A JPS59159220A (en) 1983-02-28 1983-02-28 Bending method of sheet metal or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3199983A JPS59159220A (en) 1983-02-28 1983-02-28 Bending method of sheet metal or the like

Publications (1)

Publication Number Publication Date
JPS59159220A true JPS59159220A (en) 1984-09-08

Family

ID=12346602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3199983A Granted JPS59159220A (en) 1983-02-28 1983-02-28 Bending method of sheet metal or the like

Country Status (1)

Country Link
JP (1) JPS59159220A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102744559A (en) * 2012-07-12 2012-10-24 内蒙古第一机械集团有限公司 Method for quickly and precisely positioning bending of steel plate
CN107824688A (en) * 2017-08-02 2018-03-23 新黎明科技股份有限公司 IIB levels welding anti-explosion box body, manufacture craft and the mould for making top cover or bottom

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737516B2 (en) * 1975-02-20 1982-08-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737516B2 (en) * 1975-02-20 1982-08-10

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102744559A (en) * 2012-07-12 2012-10-24 内蒙古第一机械集团有限公司 Method for quickly and precisely positioning bending of steel plate
CN107824688A (en) * 2017-08-02 2018-03-23 新黎明科技股份有限公司 IIB levels welding anti-explosion box body, manufacture craft and the mould for making top cover or bottom
CN107824688B (en) * 2017-08-02 2019-10-29 新黎明科技股份有限公司 The mold of IIB grades of welding anti-explosion box bodies, manufacture craft and production top cover or bottom cover

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