DE143580C - - Google Patents

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Publication number
DE143580C
DE143580C DENDAT143580D DE143580DA DE143580C DE 143580 C DE143580 C DE 143580C DE NDAT143580 D DENDAT143580 D DE NDAT143580D DE 143580D A DE143580D A DE 143580DA DE 143580 C DE143580 C DE 143580C
Authority
DE
Germany
Prior art keywords
strips
blades
leveled
rolled out
milled
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.)
Active
Application number
DENDAT143580D
Other languages
German (de)
Publication of DE143580C publication Critical patent/DE143580C/de
Active legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/02Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from one piece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B27/00Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02Shape or construction of rolls
    • B21B27/021Rolls for sheets or strips
    • B21B2027/022Rolls having tapered ends
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/007Taper rolling, e.g. leaf springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/16Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons turbine blades; compressor blades; propeller blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Um Turbinenschaufeln in einfacher und doch in vollkommener Weise herzustellen, soll wie folgt verfahren werden:In order to manufacture turbine blades in a simple yet perfect manner, how proceed as follows:

Es wird (s. Fig. i) ein viereckiger Streifen von etwa der Größe der Schaufel zugeschnitten. Dieser Streifen wird darauf, wie in Fig. 2 dargestellt ist, in üblicher Weise konisch ausgewalzt, und zwar geschieht dies je nach der Länge der herzustellenden Schaufeln in verschiedenen Stufen. Die Streifen passieren die Walzen so oft, bis sie auf die gewünschte Länge und Dicke ausgewalzt sind. Es wird dabei das Arbeitsstück vor die Walzen geführt, von diesen erfaßt, ausgewalzt und dann in die Anfangslage zurückgebracht.It becomes (see Fig. I) a square strip cut to about the size of the shovel. This strip is then placed as shown in FIG is, rolled out conically in the usual way, and this happens depending on the length of the blades to be produced in different Stages. The strips pass the rollers until they are rolled out to the desired length and thickness. It will while the workpiece is guided in front of the rollers, captured by them, rolled out and then returned to the initial position.

Um die Streifen möglichst gleichmäßig im Gewicht zu erlangen, läßt man dieselben, nachdem sie vorgewalzt sind, unter Verwendung einer besonderen Platte (s. Fig. 3), welche nach der genauen endgültigen Dicke' der Streifen ausgearbeitet ist, noch einmal durch die Walzen laufen, und zwar an dem dünner gehaltenen zylindrischen Teile derselben, auf der Zeichnung unmittelbar links von dem konischen Teile.In order to obtain the strips as evenly as possible in weight, they are left afterwards they are pre-rolled, using a special plate (see Fig. 3), which after the exact final thickness of the strip is worked out once more by the rollers run on the thinner cylindrical part of the same on the drawing immediately to the left of the conical part.

Hierauf werden die Streifen, da sie durch das Walzen an den Rändern ungleich geworden sind, auf die richtige Länge und Breite mittels Schnittstempel und Matrize nach der gewünschten Form geschnitten (Fig. 4), und es werden ferner (Fig. 5) die Befestigungslappen angefräst.Thereupon the stripes, as they have become uneven at the edges as a result of the rolling are to the correct length and width using a cutting punch and die according to the desired Cut shape (Fig. 4), and there are also (Fig. 5) the fastening tabs milled.

Nunmehr geschieht das Biegen der Streifen in die erforderliche Form mittels Presse, Formstempel und Matrize.The strips are now bent into the required shape using a press, Form punch and die.

Zum Schlüsse werden die Eintrittskanten egalisiert und die Streifen auf gleiches Gewicht gebracht (Fig. 6).Finally, the leading edges are leveled and the strips brought to the same weight (Fig. 6).

Das Walzen der Streifen kann auf kaltem oder warmem Wege ausgeführt werden, und es müssen in ersterem Falle die Streifen von Zeit zu Zeit geglüht werden. Die übrigen Operationen geschehen dagegen auf kaltem Wege.The rolling of the strips can be carried out in a cold or warm way, and in the former case the strips have to be annealed from time to time. The remaining Operations, on the other hand, are carried out in a cold way.

Auf diese Weise ergibt sich eine Schaufel, welche genau die erforderliche Form erhält, und es wird dadurch nicht nur erreicht, daß die Schaufeln alle untereinander gleich sind, sondern auch daß ihre Herstellung mit geringen Kosten verbunden ist.In this way, a shovel is obtained that has exactly the required shape, and it is not only achieved that the blades are all equal to one another, but also that their production is associated with low costs.

Claims (1)

Patent-Anspruch :Patent claim: Ein Verfahren zur Herstellung von Schaufeln für Dampf- und hydraulischeTurbinen, dadurch gekennzeichnet, daß in Formen geschnittene Streifen (Fig. 1) zunächst konisch, d.h. der Schaufelgestalt entsprechend, ausgewalzt (Fig. 2), hierauf unter Einlage in eine Platte (Fig. 3) egalisiert, alsdann beschnitten (Fig. 4), die Befestigungslappen angefräst (Fig. 5) und die Schaufeln gebogen werden, und daß zum Schlüsse die Eintrittskanten usw. egalisiert und die Streifen auf gleiches Gewicht gebracht werden (Fig. 6).A method of making blades for steam and hydraulic turbines, characterized in that strips cut into shapes (Fig. 1) are initially conical, i.e. corresponding to the shape of the blade, rolled out (Fig. 2), then with an insert leveled in a plate (Fig. 3), then trimmed (Fig. 4), the fastening tabs milled (Fig. 5) and the blades are bent, and that finally the leading edges etc. leveled and the strips brought to the same weight (Fig. 6). Hierzu 1 Blatt Zeichnungen. (2. Auflage, ausgegeben am jg. Mai rgo$.) 1 sheet of drawings. (2nd edition, issued on May rgo $.)
DENDAT143580D Active DE143580C (en)

Publications (1)

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Family

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DE (1) DE143580C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976494C (en) * 1950-11-14 1963-10-03 Associated Electrical Ind Rugb Process for the manufacture of blades for axial flow machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976494C (en) * 1950-11-14 1963-10-03 Associated Electrical Ind Rugb Process for the manufacture of blades for axial flow machines

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