GB560031A - Improvements in or relating to the production of composite tools by brazing - Google Patents
Improvements in or relating to the production of composite tools by brazingInfo
- Publication number
- GB560031A GB560031A GB10517/42A GB1051742A GB560031A GB 560031 A GB560031 A GB 560031A GB 10517/42 A GB10517/42 A GB 10517/42A GB 1051742 A GB1051742 A GB 1051742A GB 560031 A GB560031 A GB 560031A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tip
- heat
- per cent
- brazing
- alloy
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
- B23K31/025—Connecting cutting edges or the like to tools; Attaching reinforcements to workpieces, e.g. wear-resisting zones to tableware
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
560,031. Making composite tools. ST. CLAIR, L. J. July 27, 1942, No. 10517. Convention date, July 21, 1941. [Classes 83 (ii) and 83 (iv)] Brazing.-A composite cutting tool with a pre-hardened high speed steel tip and a carbon or alloy steel support is made by applying flux and a low-temperature brazing alloy between the parts and applying sufficient heat to the support to melt the brazing alloy to join the parts while controlling the heat to prevent the operative portion of the tip being heated above its annealing temperature and then discontinuing the heat and cooling the tip. The flux may consist of a mixture of boric acid with alkali metal fluorides and borates or a flux as described in U.S.A. Specifications 1,717,250 and 1,835,965, and the brazing alloy may consist of 50 per cent silver, 15¢ per cent copper, 16¢ per cent zinc and 18 per cent cadmium. Pieces of the alloy 15, 16 are placed between the tip 13 and the shank and the shank is heated by a gas torch 17, heat being conducted away from the tip by a steel bar 18 provided with a pair of steel blocks 19, 20 or the tip being kept cool by an air or vapour jet. In the former case the parts are held under pressure by the weight of the bar 18 and in the latter case by a hand-held rod. After the brazing alloy is melted a water or air jet is applied to the underside of the shank to draw the heat away from the tip as soon as possible. Tips 22, 23 may be similarly brazed to the part 21 of a tool for finishing the bore of a cylinder.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US560031XA | 1941-07-21 | 1941-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB560031A true GB560031A (en) | 1944-03-16 |
Family
ID=22001523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10517/42A Expired GB560031A (en) | 1941-07-21 | 1942-07-27 | Improvements in or relating to the production of composite tools by brazing |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB560031A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3014000A1 (en) * | 2013-11-29 | 2015-06-05 | Diamonde | METHOD FOR MANUFACTURING AND REPAIRING A CUTTING TOOL |
-
1942
- 1942-07-27 GB GB10517/42A patent/GB560031A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3014000A1 (en) * | 2013-11-29 | 2015-06-05 | Diamonde | METHOD FOR MANUFACTURING AND REPAIRING A CUTTING TOOL |
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