[go: up one dir, main page]

DE172748C - - Google Patents

Info

Publication number
DE172748C
DE172748C DENDAT172748D DE172748DA DE172748C DE 172748 C DE172748 C DE 172748C DE NDAT172748 D DENDAT172748 D DE NDAT172748D DE 172748D A DE172748D A DE 172748DA DE 172748 C DE172748 C DE 172748C
Authority
DE
Germany
Prior art keywords
steel
blocks
pieces
way
split
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
DENDAT172748D
Other languages
German (de)
Publication of DE172748C publication Critical patent/DE172748C/de
Active legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/001Extruding metal; Impact extrusion to improve the material properties, e.g. lateral extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/02Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. Um dichte und spannungsfreie Stahlblöcke oder -stangen zu erzeugen, werden die in Rede stehenden Stahlstücke einer Kreuzspaltung mittels der Metallkreissäge oder auf andere Art nach den punktierten Linien der Fig. I und 2 der Zeichnung unterworfen.In order to produce tight and tension-free steel blocks or bars, the in The steel pieces in question are split by means of the metal circular saw or on subject to another type according to the dotted lines of FIGS. I and 2 of the drawing. Es ist bekannt, daß beim Erkalten der Stahlingots die letzteren besonders in ihrer Mittelachse, und zwar nach oben zu, undichteIt is known that when the steel ingots cool down, the latter especially in their Central axis, namely upwards, leaking ίο Stellen enthalten; mithin werden durch das Spalten diese undichten Stellen an die Außenseiten der Werkstücke verlegt und bei wiederholter Bearbeitung durch den Hammer schließlich verschwinden.ίο contain posts; consequently, the Splitting these leaks on the outsides of the workpieces and relocated with repeated Machining by the hammer will eventually disappear. Allerdings kann der ersten Kreuzspaltung noch eine zweite folgen, wodurch man alsdann einen mehr sprungfreien Stahl von sehr gleichmäßiger Dichtigkeit erhält.However, the first cross-split can be followed by a second, which then leads to a more crack-free steel with very even tightness is obtained. Es kann jedoch das Verfahren in derHowever, the procedure in the so Weise vereinfacht werden, daß man Stahlblöcke oder Stahlstäbe von quadratischem Querschnitt zu flachen Blöcken oder Stäben ausarbeitet und diese alsdann nach den punktierten Linien (Fig. 3) rechtwinklig zur breiten Oberfläche in beliebig viele Stücke zerschneidet. Die auf diese Weise entstehenden Stahlstücke besitzen alsdann zwei dichtgehämmerte oder auf andere Weise bearbei tete Oberflächen, während die zwischen diesen beiden Flächen liegenden Materialmassen besonders nach der Mitte zu weicher sind. Schneidet man diese Stücke nochmals nach der punktierten Linie (Fig. 4) durch die erwähnte weiche Mitte voneinander und schmiedet dieselben alsdann nochmals, so erhält man Stahlblöcke, die besonders für Schmiedeförmen bzw. für Werkzeuge und andere Artikel, die stark beansprucht werden, gut geeignet sind. ■ 'so way can be simplified that you can get steel blocks or steel bars from square Cross-section worked out into flat blocks or rods and then according to the dotted lines (Fig. 3) at right angles to the broad surface in any number of pieces cut up. The steel pieces produced in this way then have two tightly hammered or machined in another way tete surfaces, while the masses of material between these two surfaces are particularly important are too soft after the middle. If you cut these pieces again according to the dotted line (Fig. 4) through the mentioned give way to one another and then forge them again, so get steel blocks, which are particularly suitable for forging molds or for tools and other items that are subject to heavy loads, are well suited. ■ ' Solche Stücke verziehen sich bei vorsiehtigern Härten meistens nicht oder weisen nur so geringe Veränderungen auf, daß diese unschädlich sind.Such pieces usually do not warp or only show if they are hardened changes so small that they are harmless. Pate ν T-A N SPRU c η :Pate ν T-A N SPRU c η: Verfahren zur Erzeugung dichter und spannungsfreier Stahlblöcke bzw. Stahlstangen, dadurch gekennzeichnet, daß starke Blöcke bzw. Stangen in der Weise gespalten werden, daß das innere Material nach außen zu liegen kommt, worauf die Teilstücke wiederholt in bekannter Weise zwecks Verdichtung bearbeitet und schließlich zur Beseitigung von schädliehen Spannungen ausgeglüht werden.Process for the production of dense and stress-free steel blocks or steel bars, characterized in that strong blocks or rods are split in such a way that the inner material comes to lie to the outside, whereupon the sections repeatedly processed in a known manner for the purpose of compression and finally annealed to remove harmful stresses. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT172748D Active DE172748C (en)

Publications (1)

Publication Number Publication Date
DE172748C true DE172748C (en)

Family

ID=437614

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT172748D Active DE172748C (en)

Country Status (1)

Country Link
DE (1) DE172748C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959788C (en) * 1952-04-18 1957-03-14 Karl Schmidt Ges Mit Beschraen Process for manufacturing connecting rods from light metal alloys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959788C (en) * 1952-04-18 1957-03-14 Karl Schmidt Ges Mit Beschraen Process for manufacturing connecting rods from light metal alloys

Similar Documents

Publication Publication Date Title
DE69303760T2 (en) Process for producing an object by superplastic forming and diffusion welding
WO2013167232A1 (en) Method and device for cutting a workpiece
DE69317757T2 (en) METHOD FOR RADIAL FORGING A BLANK
DE2607755A1 (en) PROCESS FOR COLD ROLLING A CONTOUR IN METAL RINGS
DE3311528A1 (en) Method of producing toothed elements for the transmission of motion
DE172748C (en)
DE2128767C3 (en) Overall composite tool
DE4322711C2 (en) Method of making a pipe bend
DE932335C (en) Process for pressure welding and deformation of components made of light metal
US3340716A (en) Method of producing wrought structure
DE2419555A1 (en) TOOL FOR CONTINUOUS FORGING MACHINES
DE130818C (en)
JP2725436B2 (en) Forging die
DE3313273C2 (en)
DE2531944A1 (en) High strength cold formed parts such as steel bolts - made by drawing and upsetting to eliminate need for heat treatment
DE345913C (en)
AT513701B1 (en) Method for forging a workpiece
DE87508C (en)
DE2121300C3 (en) Process for the production of starting forms by cutting metal bars
DE71879C (en) Process for the production of hollow grate bars
DE10357620A1 (en) Manufacturing steel goods of all types with structured surfaces involves using base material block made by alternately welding hardened and non-hardened steel weld beads, reducing block cross-section to at least one tenth by forging/rolling
DE613432C (en) Process for the production of cutlery from cast blanks
DE1261102B (en) Method and device for the manufacture of pipe bends with a cross section that tapers evenly from one end to the other
DE72995C (en) Process for the manufacture of plane irons
DE835585C (en) Two-part pit stamp