GB840584A - Method of making longitudinally perforated metal plates - Google Patents
Method of making longitudinally perforated metal platesInfo
- Publication number
- GB840584A GB840584A GB919658A GB919658A GB840584A GB 840584 A GB840584 A GB 840584A GB 919658 A GB919658 A GB 919658A GB 919658 A GB919658 A GB 919658A GB 840584 A GB840584 A GB 840584A
- Authority
- GB
- United Kingdom
- Prior art keywords
- article
- drilling
- cores
- passageways
- metal
- 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
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
840,584. Making longitudinally perforated plates; casting. VEREINIGTE LEICHTMETALL-WERKE G.m.b.H. March 21, 1958, No. 9196/58. Classes 83 (1) and 83 (2). In a method of making metal articles, e.g. heat-exchanger or refrigeration elements or heat-transfer plates for moulding plastics having a thickness above 2 mm. and having passageways extending in the plane of the article, the body is cast about at least one core of material of lesser resistance than that of the metal of the article, and passageways are drilled through the body along the cores, thereby simultaneously removing the material of the cores. An ingot of metal is continuously or otherwise cast around cores having rectangular, circular or elliptical cross-section, and, after milling the main surfaces plane, may be rolled to reduce the thickness, e.g. to 20 mm., Fig. 2a. The edges of the sheet are then trimmed, and passageways, e.g. 10 mm. diameter formed by drilling out the cores, the drilled holes being slightly larger than the dimensions of the core. It is stated that by this method the diameter of the passageway may be reduced relative to its length, as compared with conventional drilling from the D solid, e.g. - ratios of less than <SP>1</SP>/40 are obtain- L able. The article may also be produced by drilling directly from a body with inserts cast in, i.e. without reduction by rolling. The surface of a mould plate may be provided with longitudinal and transverse ribs and grooves by milling after rolling to thickness. The article may be made from copper, beryllium, magnesium, zinc, aluminium, scandium or titanium or alloys of those metals such as AlMg, Si and the core material may be moulding-sand, graphite, glass fibre, asbestos or slag wool, or an inert metal or alloy. The article may be annealed, quenched, or aged before or after drilling, e.g. aluminium may be annealed at 500‹ C. after drilling. Long bars or rods having passageways therethrough may also be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB919658A GB840584A (en) | 1958-03-21 | 1958-03-21 | Method of making longitudinally perforated metal plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB919658A GB840584A (en) | 1958-03-21 | 1958-03-21 | Method of making longitudinally perforated metal plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB840584A true GB840584A (en) | 1960-07-06 |
Family
ID=9867254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB919658A Expired GB840584A (en) | 1958-03-21 | 1958-03-21 | Method of making longitudinally perforated metal plates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB840584A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4412373A (en) * | 1979-12-28 | 1983-11-01 | Outokumpu Oy | Method of manufacturing a thin copper plate with flow conduits |
-
1958
- 1958-03-21 GB GB919658A patent/GB840584A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4412373A (en) * | 1979-12-28 | 1983-11-01 | Outokumpu Oy | Method of manufacturing a thin copper plate with flow conduits |
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