DE357744C - Process for the production of collars on firebox walls or other sheet metal objects by pressing - Google Patents
Process for the production of collars on firebox walls or other sheet metal objects by pressingInfo
- Publication number
- DE357744C DE357744C DEH84224D DEH0084224D DE357744C DE 357744 C DE357744 C DE 357744C DE H84224 D DEH84224 D DE H84224D DE H0084224 D DEH0084224 D DE H0084224D DE 357744 C DE357744 C DE 357744C
- Authority
- DE
- Germany
- Prior art keywords
- sheet metal
- pressing
- collars
- production
- metal objects
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Description
Bei dem bisher bekannten Verfahren zur Herstellung von Aushalsungen an Feuerbüchswänden oder an anderen Gegenständen aus Blech durch Pressen findet infolge Streckung des Materials eine Verminderung der Wandstärke in der Aushalsung statt. Wenn eine Verminderung der Wandstärke nicht zulässig ist, wie z. B. in den Aushalsungen an kupfernen Feuerbüchstürwänden, bei denen die Wand-In the previously known method for producing collars on firebox walls or on other sheet metal objects by pressing, the wall thickness is reduced as a result of the stretching of the material in the neck. If a reduction in the wall thickness is not permitted is, such as B. in the necks on copper firebox door walls, where the wall
ίο stärken in den Aushalsungen nicht schwächer sein dürfen, als in den übrigen Teilen der Wand, werden die Aushalsungsarbeiten von Hand ausgeführt, und es sind umständliche Vorbereitungsarbeiten an den zu verarbeitenden Blechen durch Anhäufen des Materials für die Aushalsungen an den in Frage kommenden Stellen des Bleches erforderlich.ίο strengthen in the necks not weaker than in the other parts of the wall, the extrusion work is carried out by hand, and there are cumbersome preparatory work on the sheets to be processed by piling up the material for the collars in the places in question of the sheet is required.
Die vorliegende Erfindung bezweckt, umständliche Vorbereitungsarbeiten von HandThe purpose of the present invention is to carry out cumbersome preparatory work by hand
ao nach Möglichkeit zu vermeiden und durch Maschinenarbeit mittels Pressen zu ersetzen.ao to be avoided if possible and to be replaced by machine work using presses.
In den Abb. 1 bis 4 der Zeichnung ist beispielsweise der Arbeitsgang bei der Herstellung einer kupfernen Türwand dargestellt. In Abb. 1In Figs. 1 to 4 of the drawing, for example the work process for the production of a copper door panel is shown. In Fig. 1
ist das mit einer Öffnung α versehene Blech δ in die Gesenke eingebracht. . Das Gesenk c ist in diesem Falle als feststehend, das Gesenk d als beweglich angenommen. Das Gesenk d stellt zunächst die äußere Bördelung in bekannter Weise her. In Abb. 2 ist die äußere Bördelung fertig, und die aus mehreren|Teilen bestehenden Lochwerkzeuge e, f sind im Begriff, die Türöffnung zu bilden. In Abb. 3 ist die Türöffnung ausgeführt, und das Blech b ist fest zwischen die Gesenke c und d eingeklemmt, wobei der Anschlag h mit einem Keilstück i, welches durch die Lochwerkzeuge e und f umschlossen ist, in Berührung gekommen ist. In Abb. 4 ist die Aushalsung der Türöffnung durch das bewegliche Gesenk g erfolgt. Hierbei ist;durch-den Anschlagt das Keilstück i verschoben, wodurch die einzelnen Teile der Lochwerkzeuge e und f in der Richtung des Bleches auseinander bewegt sind. Durch Aufweiten der Türöffnung wird so viel Material in die Aushalsung verdrängt, daß keine, Streckung und folglich keine Verminderung der Wandstärke in der Aushalsung eintritt.the sheet metal δ provided with an opening α is introduced into the dies. . In this case, the die c is assumed to be stationary and the die d to be movable. The die d first produces the outer flanging in a known manner. In Fig. 2 the outer flange is finished and the perforating tools e, f , consisting of several parts, are about to form the door opening. In Fig. 3 the door opening is made, and the sheet metal b is firmly clamped between the dies c and d , the stop h having come into contact with a wedge piece i, which is enclosed by the punching tools e and f. In Fig. 4 the necking of the door opening is done by the movable die g. In this case, the wedge piece i is displaced by the stop, as a result of which the individual parts of the punching tools e and f are moved apart in the direction of the sheet metal. By widening the door opening, so much material is displaced into the collar that no stretching and consequently no reduction in the wall thickness occurs in the collar.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH84224D DE357744C (en) | Process for the production of collars on firebox walls or other sheet metal objects by pressing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH84224D DE357744C (en) | Process for the production of collars on firebox walls or other sheet metal objects by pressing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE357744C true DE357744C (en) | 1922-08-31 |
Family
ID=7164165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH84224D Expired DE357744C (en) | Process for the production of collars on firebox walls or other sheet metal objects by pressing |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE357744C (en) |
-
0
- DE DEH84224D patent/DE357744C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE523104C (en) | Process for hot pressing of steel bicycle hubs | |
DE2128767C3 (en) | Overall composite tool | |
DE357744C (en) | Process for the production of collars on firebox walls or other sheet metal objects by pressing | |
DE1627742A1 (en) | Process for forming rod-shaped metal into elongated parts with a prescribed cross-section | |
DE601234C (en) | Press die for the production of corrugated iron walls from sheet metal | |
DE576382C (en) | Device for the production of tubes from sheet metal strips | |
DE523111C (en) | Device for the production of containers with thickened bottom and edge parts and thin, cylindrical side walls | |
DE495952C (en) | Process for the production of pipe connectors | |
DE517530C (en) | Process for the production of bearing sleeves | |
DE601061C (en) | Process for the production of sharp-edged dovetail pieces for the molding of briquette presses from high-quality steel sheets | |
DE116784C (en) | ||
DE399546C (en) | Method and apparatus for manufacturing railway wheel tires | |
DE666909C (en) | Method of making washers | |
DE457703C (en) | Manufacture of sole shares for plows | |
AT112953B (en) | Method and device for producing circumferential grooves with a sharp edge on hollow bodies. | |
DE518629C (en) | Process for the production of graduated cylindrical coats open on both sides, especially for milk cans | |
DE326961C (en) | Process for pressing buffer sleeves from a block | |
DE102011013127A1 (en) | Method for introducing opening into workpiece, involves contouring opening of workpiece by counter tool that cooperates with machining tool, where counter tool is provided with recess | |
AT147570B (en) | Process for the production of fastener strips for zip fasteners. | |
DE351562C (en) | Extrusion process for pressing the grooves into twist drills | |
DE458157C (en) | Preparatory process for the production of chains from loop-shaped sheet metal links | |
DE917241C (en) | Clamping of workpieces of unequal width lying on top of one another, for example wire coils of coil springs of a spring insert on holding frame | |
DE420014C (en) | Process for the production of angled pipe connection pieces with internal thread (fittings) | |
DE522444C (en) | Die for the production of drive pulleys u. like | |
AT135983B (en) | Process for the production of buoyant soap. |