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
Application number
GB6833/37A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Publication of GB468205ApublicationCriticalpatent/GB468205A/en
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
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Metal Extraction Processes
(AREA)
Abstract
468,205. Alloys. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 8, 1937, No. 6833. Convention date, March 11, 1936. [Class 82 (i)] [Also in Group XXII] In the manufacture of a wire-drawing die with an embedded diamond a sintering powder is used consisting of 94 per cent of tungsten, 4 per cent of nickel and 2 per cent of copper. A metal plate of the same composition is used for placing the diamond on before adding the powder.
GB6833/37A1936-03-111937-03-08Improved method of setting diamonds to form wire-drawing dies
ExpiredGB468205A
(en)