JPS578013A - Method of cutting of thermally-extended rough bar - Google Patents
Method of cutting of thermally-extended rough barInfo
- Publication number
- JPS578013A JPS578013A JP8331980A JP8331980A JPS578013A JP S578013 A JPS578013 A JP S578013A JP 8331980 A JP8331980 A JP 8331980A JP 8331980 A JP8331980 A JP 8331980A JP S578013 A JPS578013 A JP S578013A
- Authority
- JP
- Japan
- Prior art keywords
- cut
- cutting
- tip end
- rough bar
- bar
- 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.)
- Pending
Links
Landscapes
- Shearing Machines (AREA)
Abstract
PURPOSE: To obtain an efficient cutting of a thick bar with a conventional crop shear by a method wherein the tip end of the rough bar is cut in the thickness direction by melting technique so as to have a tapered surface and then the tapered tip end is cut.
CONSTITUTION: The roughly extended bar 1 is cut at the tip end by melting technique in the thickness direction by a gas cutting machine GC so as to have the tapered surface. The angle θ of the tapered surface is about 15 to 60°. At an appropriate point in a range of a cutting allowance thickness (t) of the crop shear CS at the tapered tip end, a crop 2 is cut and removed by the crop shear CS. According to this method, any rough bar having such a thickness as cannot be cut by a conventional crop shear can be easily cut.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8331980A JPS578013A (en) | 1980-06-18 | 1980-06-18 | Method of cutting of thermally-extended rough bar |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8331980A JPS578013A (en) | 1980-06-18 | 1980-06-18 | Method of cutting of thermally-extended rough bar |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS578013A true JPS578013A (en) | 1982-01-16 |
Family
ID=13799099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8331980A Pending JPS578013A (en) | 1980-06-18 | 1980-06-18 | Method of cutting of thermally-extended rough bar |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS578013A (en) |
-
1980
- 1980-06-18 JP JP8331980A patent/JPS578013A/en active Pending
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