GB637028A - Improvements in or relating to punches for piercing sheet material - Google Patents
Improvements in or relating to punches for piercing sheet materialInfo
- Publication number
- GB637028A GB637028A GB2972547A GB2972547A GB637028A GB 637028 A GB637028 A GB 637028A GB 2972547 A GB2972547 A GB 2972547A GB 2972547 A GB2972547 A GB 2972547A GB 637028 A GB637028 A GB 637028A
- Authority
- GB
- United Kingdom
- Prior art keywords
- punches
- relating
- grinding
- sheet material
- wheel
- 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.)
- Expired
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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
637,028. Grinding. KOPCZYNSKI, J. F., and KING, R. H. Nov. 7, 1947, No. 29725. [Class 60] [Also in Group XXII] A punching tool 1 may be ground with a taper 8 and reduced portion 6 on a lathe by a highspeed grinding-wheel 20 on the tool stock, the work being held in the slowly-rotating chuck. The grinding-wheel 20 has its axis at right-angles to the axis of the work in order to obtain a longitudinal grain.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2972547A GB637028A (en) | 1947-11-07 | 1947-11-07 | Improvements in or relating to punches for piercing sheet material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2972547A GB637028A (en) | 1947-11-07 | 1947-11-07 | Improvements in or relating to punches for piercing sheet material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB637028A true GB637028A (en) | 1950-05-10 |
Family
ID=10296123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2972547A Expired GB637028A (en) | 1947-11-07 | 1947-11-07 | Improvements in or relating to punches for piercing sheet material |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB637028A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109047461A (en) * | 2018-07-16 | 2018-12-21 | 温州职业技术学院 | A kind of diel for punching plates |
-
1947
- 1947-11-07 GB GB2972547A patent/GB637028A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109047461A (en) * | 2018-07-16 | 2018-12-21 | 温州职业技术学院 | A kind of diel for punching plates |
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