GB959797A - Improvements in or relating to the manufacture of drawing dies - Google Patents
Improvements in or relating to the manufacture of drawing diesInfo
- Publication number
- GB959797A GB959797A GB866661A GB866661A GB959797A GB 959797 A GB959797 A GB 959797A GB 866661 A GB866661 A GB 866661A GB 866661 A GB866661 A GB 866661A GB 959797 A GB959797 A GB 959797A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nickel
- setting
- metal
- ring
- diamond
- 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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/10—Making tools by operations not covered by a single other subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/18—Making tools by operations not covered by a single other subclass; Repairing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P5/00—Setting gems or the like on metal parts, e.g. diamonds on tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
959,797. Casting composite articles. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 9, 1961 [March 12, 1960], No. 8666/61. Heading B3F. A diamond die is made by supporting a drilled diamond 17 in an oversize metal setting 9, placing a metal, e.g. cast iron, ring 18 of lower melting point than the setting 9 around the diamond and melting it in the concentrator 7 of a high-frequency generator. After solidification, the top edge 15 of the setting is milled off, the nickel centring tube 24 removed and a conical opening provided in the die. The chamber 1 is filled with inert gas before and during melting and the concentrator is fitted to an exhaust system via a duct 14. The ring 18 may comprise a cover ring portion 19 of a non- oxidizing metal of a lower melting point than the portion 18, which sinks down into the H.F. field after the portion 18 has melted, and is melted to form a protective cover on the cast iron of the portion 18. The setting may be " Monel " (Registered Trade Mark) metal or an iron-nickel-cobalt alloy having about 28% nickel and 18% cobalt, and the cover ring may be of a nickel-manganese alloy consisting of about 60% nickel and 40% manganese.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL249360 | 1960-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB959797A true GB959797A (en) | 1964-06-03 |
Family
ID=19752217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB866661A Expired GB959797A (en) | 1960-03-12 | 1961-03-09 | Improvements in or relating to the manufacture of drawing dies |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH403687A (en) |
| GB (1) | GB959797A (en) |
-
1961
- 1961-03-09 CH CH284561A patent/CH403687A/en unknown
- 1961-03-09 GB GB866661A patent/GB959797A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH403687A (en) | 1965-12-15 |
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