DE906881C - Process in fine machining - Google Patents

Process in fine machining

Info

Publication number
DE906881C
DE906881C DEM2628D DEM0002628D DE906881C DE 906881 C DE906881 C DE 906881C DE M2628 D DEM2628 D DE M2628D DE M0002628 D DEM0002628 D DE M0002628D DE 906881 C DE906881 C DE 906881C
Authority
DE
Germany
Prior art keywords
machining
fine machining
fine
lapping
grinding
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
DEM2628D
Other languages
German (de)
Inventor
Otto Hansmann
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Priority to DEM2628D priority Critical patent/DE906881C/en
Application granted granted Critical
Publication of DE906881C publication Critical patent/DE906881C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F4/00—Processes for removing metallic material from surfaces, not provided for in group C23F1/00 or C23F3/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Description

Verfahren bei der spanabhebenden Feinbearbeitung Bekanntlich wendet man zur Erzeugung von Metalloberflächen höherer Güte besondere Bearbeitungsverfahren, wie beispielsweise Schleifen, Läppen usw., an. Es wurde nun gefunden, daß eine Verbesserung solcher spanabhebender Oberflächenbehandlungsverfahren, wie Aufreiben mittels Reibahlen, Feinbohren, Honen, Läppen, Polieren, Schaben und Schleifen, dann erzielt werden kann, wenn das Werkstück vor oder während der Bearbeitung mit einer Lösung, welche chemisch oberflächlich schichtbildend wirkt, behandelt wird. Zum Aufbringen einer solchen Schicht eignen sich bei eisernen Oberflächen insbesondere die Brünier-, Phosphat- und Chromatverfahren, gegebenenfalls unter Zuhilfenahme von Kühl- und Schmiermitteln. Bei Aluminium und seinen Legierungen ist das zur Oberflächenbehandlung bekannte Verfahren unter Verwendung alkalischer Chromatlösungen geeignet, während bei Zink beispielsweise eine Chromatisierung die gewünschten Eigenschaften der Oberfläche ergibt. Es kann unter Umständen dabei von Vorteil sein, nicht nur das Werkstück, sondern auch das Werkzeug nach einem derartigen Verfahren zu behandeln.As is well known, applies in the case of fine machining special machining processes are used to produce metal surfaces of higher quality, such as grinding, lapping, etc. It has now been found that an improvement such machining surface treatment processes, such as reaming with reamers, Fine boring, honing, lapping, polishing, scraping and grinding, then can be achieved can if the workpiece before or during machining with a solution which chemically superficial layer-forming acts, is treated. To apply a such a layer are particularly suitable for iron surfaces, the burnishing, Phosphate and chromate processes, if necessary with the aid of cooling and Lubricants. In the case of aluminum and its alloys, this is for surface treatment known methods using alkaline chromate solutions suitable while in the case of zinc, for example, chromating the desired properties of the surface results. Under certain circumstances it can be an advantage not only to the workpiece, but also to treat the tool according to such a method.

Es ist bereits bekannt, bei Kaltbearbeitungsverfahren, wie beispielsweise Ziehen, Fette als Schmiermittel zu vermeiden, da deren Reste bei ungründlicher Reinigung eine anschließende Phosphatierung zu Rostschutzzwecken stört. Aus diesem Grunde sollen hochkonzentrierte Alkaliphosphatlösungen oder hochkonzentrierte Lösungen anderer anorganischer Salze von hoher Wasserlöslichkeit verwandt werden, die eine genügend ölige Viskosität besitzen, um schmierend wirken zu können. Derartige hochviskose Lösungen kommen für die Zwecke der Erfindung nicht in Betracht.It is already known in cold working processes such as Pull to avoid greases as lubricants, as their residues are left behind if cleaning is not thorough a subsequent phosphating for rust protection purposes interferes. For this reason should highly concentrated alkali phosphate solutions or highly concentrated Solutions of other inorganic salts of high water solubility are used, which have a sufficiently oily viscosity to be able to have a lubricating effect. Such highly viscous solutions are not suitable for the purposes of the invention.

Claims (1)

PATENTANSPRUCH: Verfahren bei der spanabhebenden Feinbearbeitung von Metallen, wie beispielsweise durch Aufreiben mittels Reibahlen, Feinbohren, Honen, Läppen, Polieren, Schaben und Schleifen, dadurch gekennzeichnet, daß die Oberfläche des Werkstücks, gegebenenfalls auch die des Werkzeugs, vor oder während der Bearbeitung mit einer Lösung, welche chemisch oberflächlich schichtbildend wirkt, behandelt wird. Angezogene Druckschriften: USA.-Patentschrift Nr. 2 008 939.PATENT CLAIM: Process for the fine machining of Metals, such as by reaming with reamers, fine boring, honing, Lapping, polishing, scraping and grinding, characterized in that the surface of the workpiece, possibly also that of the tool, before or during machining treated with a solution that chemically creates a layer on the surface will. References: U.S. Patent No. 2,008,939.
DEM2628D 1938-06-24 1938-06-24 Process in fine machining Expired DE906881C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM2628D DE906881C (en) 1938-06-24 1938-06-24 Process in fine machining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM2628D DE906881C (en) 1938-06-24 1938-06-24 Process in fine machining

Publications (1)

Publication Number Publication Date
DE906881C true DE906881C (en) 1954-03-18

Family

ID=7291787

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM2628D Expired DE906881C (en) 1938-06-24 1938-06-24 Process in fine machining

Country Status (1)

Country Link
DE (1) DE906881C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1106579B (en) * 1957-04-24 1961-05-10 Dr Martin Kuehn Process for the fine machining of metal surfaces in the presence of acidic substances

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2008939A (en) * 1932-07-29 1935-07-23 John L Tufts Method of and material for treating metal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2008939A (en) * 1932-07-29 1935-07-23 John L Tufts Method of and material for treating metal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1106579B (en) * 1957-04-24 1961-05-10 Dr Martin Kuehn Process for the fine machining of metal surfaces in the presence of acidic substances

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