DE827743C - Process and device for flame cutting of thick workpieces by means of flame cutting machines - Google Patents

Process and device for flame cutting of thick workpieces by means of flame cutting machines

Info

Publication number
DE827743C
DE827743C DEM7777A DEM0007777A DE827743C DE 827743 C DE827743 C DE 827743C DE M7777 A DEM7777 A DE M7777A DE M0007777 A DEM0007777 A DE M0007777A DE 827743 C DE827743 C DE 827743C
Authority
DE
Germany
Prior art keywords
flame cutting
cutting
flame
thick workpieces
cut
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
Application number
DEM7777A
Other languages
German (de)
Inventor
Alfred Pfeuffer
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.)
Adolf Messer GmbH
Original Assignee
Adolf Messer GmbH
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 Adolf Messer GmbH filed Critical Adolf Messer GmbH
Priority to DEM7777A priority Critical patent/DE827743C/en
Application granted granted Critical
Publication of DE827743C publication Critical patent/DE827743C/en
Expired legal-status Critical Current

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
    • B23K7/00—Cutting, scarfing, or desurfacing by applying flames

Description

Beim Brennschneiden dicker Werkstücke wirkt die Schneidflamme nicht durch die ganze Dicke des Werkstücks hindurch senkrecht zur Oberfläche, vielmehr bleibt die Schnittwirkung mit der Tiefe zunehmend von der senkrechten Brennerrichtung entfernt. Man erkennt dies an den in den Schnittflächen vorhandenen Riefen, die nach unten zunehmend nach rückwärts gekrümmt sind, und zwar mehr oder weniger, je nach der Dicke des Werkstücks und der eingestellten Schnittgeschwindigkeit. Die Ursache liegt darin, daß die Wirksamkeit des Schneidstrahts von oben nach unten abnimmt. Hat die Schnittfuge an der Oberfläche das Ende des Werkstücks erreicht, so ist sie nach der Tiefe hin zunehmend noch vom Ende entfernt. Der infolgedessen verbleibende Schnittrest läßt sich ohne umständliches Umsetzen des Brenners nicht wegschneiden.The cutting flame does not work when flame cutting thick workpieces through the entire thickness of the workpiece perpendicular to the surface, rather the cutting effect remains with the depth increasing from the perpendicular torch direction removed. This can be seen from the grooves in the cut surfaces are curved downwards increasingly backwards, more or less depending according to the thickness of the workpiece and the set cutting speed. the The reason is that the effectiveness of the cutting beam from top to bottom decreases. When the kerf on the surface has reached the end of the workpiece, so towards the depth it is increasingly distant from the end. As a result Remaining cutting cannot be done without laborious repositioning of the torch cut away.

Die Erfindung löst die Aufgabe, den Schnitt entweder über die ganze Tiefe des Werkstücks gleichzeitig zu Ende zu führen oder sogar in der Tiefe gegenüber der Oberfläche voreilend zu schneiden. Zu diesem Zweck wird der Brenner nach der Erfindung vor dem Erreichen des Schnittendes in Richtung des Schnittes nach vorwärts geschwenkt, so daß der Schneidstrahl zur Oberfläche geneigt ist. In der Zeichnung ist eine Ausführung einer Einrichtung zum Vorwärtsschwenken des Brenners dargestellt. Der Brenner i bewegt sich an dem Ausleger @ des Kreuzwagensvstems einer Brennschneidmaschine über das zu schneidende Werkstück 3 und wird kurz vor Erreichen des Werkstückendes durch den festen Anschlag ,4 in die Schräglage geschwenkt. Durch Veränderung der Stellung dieses Anschlages oder der Höhenstellung des Brenners können Zeitpunkt und Kippwinkel beliebig eingestellt werden.The invention solves the problem of the cut either over the whole Depth of the workpiece at the same time to lead to the end or even in depth opposite to cut ahead of the surface. For this purpose the burner is turned on after the Invention before reaching the end of the cut in the direction of the cut forward pivoted so that the cutting beam is inclined to the surface. In the drawing an embodiment of a device for pivoting the burner forward is shown. The torch i moves on the boom @ of the cross carriage system of a flame cutting machine over the workpiece 3 to be cut and is shortly before reaching the end of the workpiece by the fixed stop, 4 pivoted into the inclined position. By changing the Position of this stop or the height position of the burner can point in time and tilt angle can be set as required.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zum Brennschneiden dicker Werkstücke mittels Brennschneidmaschinen, dadurch gekennzeichnet, daß der Brenner vor dem Ende der Schnittlänge um einen Drehpunkt in der Schnittrichtung derart geschwenkt wird, daß der Schneidstrahl zur Oberfläche geneigt ist. a. Brennschneidmaschine zur Ausübung des Verfahrens nach Anspruch i, gekennzeichnet durch einen verstellbaren Anschlag, gegen den sich das obere Ende oder ein Verlängerungsstück des drehbar gelagerten Brenners vor dem Ende des Schnittes anlegt. PATENT CLAIMS: i. Process for flame cutting of thick workpieces by means of flame cutting machines, characterized in that the torch is pivoted around a pivot point in the cutting direction before the end of the cutting length in such a way that the cutting beam is inclined towards the surface. a. Flame cutting machine for carrying out the method according to claim i, characterized by an adjustable stop against which the upper end or an extension piece of the rotatably mounted torch rests before the end of the cut.
DEM7777A 1950-12-05 1950-12-05 Process and device for flame cutting of thick workpieces by means of flame cutting machines Expired DE827743C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM7777A DE827743C (en) 1950-12-05 1950-12-05 Process and device for flame cutting of thick workpieces by means of flame cutting machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM7777A DE827743C (en) 1950-12-05 1950-12-05 Process and device for flame cutting of thick workpieces by means of flame cutting machines

Publications (1)

Publication Number Publication Date
DE827743C true DE827743C (en) 1952-01-14

Family

ID=7293883

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM7777A Expired DE827743C (en) 1950-12-05 1950-12-05 Process and device for flame cutting of thick workpieces by means of flame cutting machines

Country Status (1)

Country Link
DE (1) DE827743C (en)

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