JPS5752565A - Plasma arc cutting method - Google Patents

Plasma arc cutting method

Info

Publication number
JPS5752565A
JPS5752565A JP12772280A JP12772280A JPS5752565A JP S5752565 A JPS5752565 A JP S5752565A JP 12772280 A JP12772280 A JP 12772280A JP 12772280 A JP12772280 A JP 12772280A JP S5752565 A JPS5752565 A JP S5752565A
Authority
JP
Japan
Prior art keywords
cut
pipe
speeds
torches
moved
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
JP12772280A
Other languages
Japanese (ja)
Other versions
JPS6039466B2 (en
Inventor
Michihiro Nakagawa
Yoshimitsu Inoue
Yoshimi Toriyama
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP12772280A priority Critical patent/JPS6039466B2/en
Publication of JPS5752565A publication Critical patent/JPS5752565A/en
Publication of JPS6039466B2 publication Critical patent/JPS6039466B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Arc Welding In General (AREA)

Abstract

PURPOSE: To cut a square steel pipe or the like with high efficiency by controlling the relative moving speeds of a material to be cut and plasma torches to low speeds in corner parts and to high speeds in flat parts.
CONSTITUTION: Plural pieces of plasma torches 12 are disposed for the respective faces of a square steel pipe 11 or the like. The torches 12 are moved from a torch moving start point 15, and while they are moved at low speeds for the distances up to the low speed cutting ranges 20W21 for corner R parts, the pipe is cut, and while they are moved at high speeds in the high speed cutting ranges 18W19 for flat parts, the pipe is cut. Further, the pipe is cut while the torches are moved at low speeds in the low speed cutting ranges 20W21 for corner R parts and the cutting is completed at a torch moving completion point 22. In this case, the four faces of the pipe 11 are cut simultaneously with 4 pieces of the torch 12. It is equally well to fix the torches 12 and to rotate the pipe 11.
COPYRIGHT: (C)1982,JPO&Japio
JP12772280A 1980-09-13 1980-09-13 Plasma arc cutting method Expired JPS6039466B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12772280A JPS6039466B2 (en) 1980-09-13 1980-09-13 Plasma arc cutting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12772280A JPS6039466B2 (en) 1980-09-13 1980-09-13 Plasma arc cutting method

Publications (2)

Publication Number Publication Date
JPS5752565A true JPS5752565A (en) 1982-03-29
JPS6039466B2 JPS6039466B2 (en) 1985-09-06

Family

ID=14967086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12772280A Expired JPS6039466B2 (en) 1980-09-13 1980-09-13 Plasma arc cutting method

Country Status (1)

Country Link
JP (1) JPS6039466B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021179A (en) * 1983-07-14 1985-02-02 Sumikin Daikeikoukan Kk Plasma cutting method of spiral welded pipe
JPS62174696A (en) * 1986-01-29 1987-07-31 株式会社日立製作所 High radioactive solid waste cutter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021179A (en) * 1983-07-14 1985-02-02 Sumikin Daikeikoukan Kk Plasma cutting method of spiral welded pipe
JPS62174696A (en) * 1986-01-29 1987-07-31 株式会社日立製作所 High radioactive solid waste cutter

Also Published As

Publication number Publication date
JPS6039466B2 (en) 1985-09-06

Similar Documents

Publication Publication Date Title
JPS5752565A (en) Plasma arc cutting method
JPS52127762A (en) Etching method
JPS5226675A (en) Manufacturing method of edged tool with regular arc cutting edte
JPS53123349A (en) Plasm cutting method and plasma torch
JPS5237281A (en) Method and apparatus for forming spherical surfaces
JPS5388431A (en) Method of manufacturing casing in hydraulic machine
JPS547689A (en) Sawing device
JPS5317903A (en) Manufacturing method of stator iron core
JPS52136494A (en) Process for grooving brittle material
JPS52103786A (en) Method of cutting crystal body
JPS5436695A (en) Laser processing method
JPS5797889A (en) Welding method for plate material
Goodwin Plasma Claims Are Not Just Hot Air
JPS5788970A (en) Cutter for face bar of wide flange beam
JPS5425234A (en) Highly tough welding method using band-shaped electrode
JPS5721215A (en) Slotting method of slotted nut
JPS5344995A (en) Laser machining apparatus
JPS5219392A (en) Deburring method of sawed section of steel materials
JPS51133895A (en) Laser machining
JPS53100949A (en) Cutting method for steel pipe
JPS51126589A (en) Feed speed control device
JPS5715657A (en) Swirl-shaped side wall finishing process and tool
JPS57100891A (en) Method for edge preparation in gradually changing welding part
JPS5214286A (en) Steel pipe sheet pile cutting process
JPS5286584A (en) Apparatus for automatically cutting formed steel