DE3533248C1 - Process for producing milling cutters by equipping with macro grains of abrasive materials, such as silicon carbide - Google Patents

Process for producing milling cutters by equipping with macro grains of abrasive materials, such as silicon carbide

Info

Publication number
DE3533248C1
DE3533248C1 DE19853533248 DE3533248A DE3533248C1 DE 3533248 C1 DE3533248 C1 DE 3533248C1 DE 19853533248 DE19853533248 DE 19853533248 DE 3533248 A DE3533248 A DE 3533248A DE 3533248 C1 DE3533248 C1 DE 3533248C1
Authority
DE
Germany
Prior art keywords
grain
milling
macro
synthetic resin
equipping
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
DE19853533248
Other languages
German (de)
Inventor
Werner Foppe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19853533248 priority Critical patent/DE3533248C1/en
Application granted granted Critical
Publication of DE3533248C1 publication Critical patent/DE3533248C1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28—Resins or natural or synthetic macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives

Abstract

In the process for producing milling cutters by equipping with macro grain of hard, sharp-edged abrasive materials, the machining properties of this coarse grain at high rotational speed of the milling cutter are utilised, as a result of which the cutting blades usually used can be replaced. Hand-held milling devices with cutting blades are difficult and inaccurate to control for wood machining and hold a high risk of accidents by the appliance breaking out at changes in grain. The equipping of the milling cutters with coarse, sharp-edged grain, on the other hand, permits a versatile shaping of the milling cutter, a neat and risk-free operating console and a high lifetime in the event of sand or metal being included in the wood. Milling cutters with macro grain equipping thus provide ideal prerequisites for use in tree surgery.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Hochgeschwindigkeit-Fräskörpern, in deren Oberfläche eine abrasive Makrokornschicht fest verankert ist, die zum Aus­ fräsen von Holz oder ähnlichen Materialien verwandt werden kann. Im besonderen sind diese erfindungsgemäß hergestellten Fräskörper für nichtstationäre hochtourige Fräsgeräte geeignet.The invention relates to a method for producing High-speed milling bodies, one in the surface abrasive macro grain layer is firmly anchored to the end milling of wood or similar materials can. In particular, these are milling bodies produced according to the invention suitable for non-stationary high-speed milling machines.

Derartige Fräsgeräte werden beispielsweise dringend in der Baumchirurgie benötigt und haben vorzugsweise einen Arbeits­ flächen-Durchmesser von 25 mm bis 125 mm.Such milling machines are, for example, urgently in the Tree surgery is required and preferably has a job surface diameters from 25 mm to 125 mm.

Bisher wurden für diesen Arbeitsbereich Fräser mit Schneid­ werkzeugen aus Metall verwandt, die für den Anwender eine hohe Unfallgefahr darstellen und ungenau zu führen sind, da die Geräte bei Faserwechsel im Holz leicht ausbrechen sowie durch die Bauform der notwendigen Schutzvorrichtungen einer Einsatzbegrenzung unterliegen. Außerdem bestehen hohe An­ schaffungskosten und der Verschleiß steigt rapide, wenn im Bodenbereich des Stammes mit Sand oder Steineinschlüssen sowie eingewachsenen Eisenteilen im Stammbereich gearbeitet wird.So far, milling cutters have been used in this field related tools made of metal, which for the user a pose a high risk of accidents and are to be managed imprecisely, since the devices break out easily when changing fibers in wood as well due to the design of the necessary protective devices Limited use. There are also high levels creation costs and wear increases rapidly when in the Ground area of the trunk with sand or stone inclusions as well as ingrown iron parts in the trunk area becomes.

Durch die erfindungsgemäße Verwendung von Makrokorn aus Siliziumkarbid oder ähnlich harten, scharfkantigen Materialien auf formgerechtem und berstfreiem Trägermaterial wird dieses harte, scharfkantige Material durch die hohe Umlaufge­ schwindigkeit und durch die Bewegungsführung des Manipu­ lators als Schneide eingesetzt, die einen vergleichbaren oder höheren Arbeitsfortschritt ermöglicht, als dies bei Metallschneidfräsern der Fall ist, unter Eliminierung derer Nachteile.The use of macrograin according to the invention Silicon carbide or similar hard, sharp-edged materials This is done on form-fitting and burst-free carrier material  hard, sharp-edged material due to the high circulation dizziness and through the movement of the Manipu lators used as a cutting edge, which is comparable or higher work progress than this at Metal milling cutters is the case, eliminating them Disadvantage.

Bei hoher Umlaufgeschwindigkeit, die vorzüglich mit druck­ luftbetriebenen Geräten erzeugt wird, nehmen die Schnitt­ kräfte am Makrokorn ab und der Leistungsfaktor sowie die spezifische Spanleistung und die Kanten- bzw. Profilhaltigkeit steigen überproportional an. Mit zunehmender Umlaufgeschwindig­ keit nimmt damit auch die Bruch- bzw. Ausbruchgefahr des Schneid­ korns ab, solange die entstehenden Fliehkräfte die Haftungs­ kräfte des Werkzeugs nicht übersteigen. Dadurch wird eine ruhige Führung des Gerätes beim Arbeitsfortschritt und eine formgenaue Ausarbeitung gewährleistet.At high circulation speed, which is excellent with pressure air-powered equipment is produced, take the cut forces on the macro grain and the power factor as well as the specific chip performance and edge or profile retention rise disproportionately. With increasing circulation speed speed also reduces the risk of the cutting breaking or breaking out korns as long as the centrifugal forces generated the liability do not exceed the tool's forces. This will make a calm one Management of the device as work progresses and an accurate shape Elaboration guaranteed.

Die erfindungsgemäß hergestellten metallgegossenen Fräskörper nach Anspruch 1a sind nach Verschleiß erneut zu ätzen und so mehrfach zu verwenden, wobei die Arbeitsfläche allerdings nach jedem Ätzgang kleiner wird.The metal-cast milling bodies produced according to the invention according to claim 1a are etched after wear and so on to be used several times, but the work surface according to every etch becomes smaller.

Fräskörper aus Kunstharz als Trägersubstanz nach Anspruch 1b sind nach Abarbeitung des Makrokorns nur durch Oberflächen­ beschichtung zu erneuern, wie dies erfindungsgemäß unter Anspruch 3 beschrieben ist.Milling body made of synthetic resin as a carrier substance according to claim 1b are only through surfaces after processing the macro grain Renew coating, as this under Claim 3 is described.

Anwendung können diese nach Anspruch 1-6 erfindungsgemäß hergestellten Fräskörper und Frässcheiben außer in dem erwähnten Bereich der Baumpflege auch in dem Bereich der Holzbauwirtschaft sowie im Heimwerkerbereich finden.Application these can be produced according to the invention according to claims 1-6 Milling body and milling discs except in the area mentioned tree care also in the field of timber construction as well as in the home improvement area.

Claims (6)

1. Verfahren zur Herstellung von Fräskörpern mit Makrokorn (Korngröße zwischen 1 und 10, gemäß US-Standard-Prüfsieb) aus Siliziumkarbid, Edelkorund und ähnlich harten, scharf­ kantigen, abrasiven Materialien, durch Abgießen mit Metall oder Kunstharz in eine Form, bei der
  • a) das im Metall gegossene Makrokorn nach Aushärtung durch Ätzen für den Arbeitseinsatz freigelegt wird bzw.
  • b) das in Kunstharz zu bindende Makrokorn vor dem Abguß bis Zweidrittel in einer Haftschicht auf der Innenseite der Form aufgenommen wird und nach Aushärtung des die Körnung tragenden Kunstharzkörpers von hoher Zug- und Scherfestigkeit von 40 N/mm2 die Haftschicht entfernt wird, wodurch die für den Arbeitseinsatz vorgesehene Fräskörnung frei wird.
1. Process for the production of milling bodies with macro grain (grain size between 1 and 10, according to US standard test sieve) from silicon carbide, high-grade aluminum oxide and similar hard, sharp-edged, abrasive materials, by casting with metal or synthetic resin into a mold in which
  • a) the macro-grain cast in the metal is exposed for hardening by etching after hardening or
  • b) the macro grain to be bound in synthetic resin is taken up to two-thirds in an adhesive layer on the inside of the mold before the casting and after curing of the synthetic resin body carrying the grain of high tensile strength and shear strength of 40 N / mm 2, the adhesive layer is removed, whereby the the milling grit intended for work is released.
2. Verfahren zur Herstellung von Frässcheiben durch Gießen einer 1-3 mm starken Metallscheibe, in deren Schmelzober­ fläche Makrokorn in der Korngröße 1-10, gemäß US-Standard- Prüfsieb, eingestreut wird.2. Process for producing milling discs by casting a 1-3 mm thick metal disc, in the melting surface Macro grain in grain size 1-10, according to US standard Test sieve, is sprinkled. 3. Verfahren zur Herstellung von Fräsköpfen und Frässcheiben durch Beschichten vorgefertigter Metallrohlinge mit Kunstharz und anschließender Einstreuung von Makrokorn in der Körnung 1-10, gemäß US-Standard-Prüfsieb, sowie anschließender thermischer Aushärtung der tragenden Kunstharzschicht zu hoher Zug- und Scherfestigkeit. 3. Process for the production of milling heads and milling disks by coating prefabricated metal blanks with synthetic resin and then sprinkling of macro grain in the grain 1-10, according to the US standard test sieve, and subsequent thermal curing of the load-bearing synthetic resin layer high tensile and shear strength.   4. Verfahren zur Herstellung von Fräsköpfen aus technischen keramischen Werkstoffen durch Besetzen mit Makrokorn in der Korngröße 1-10, gemäß US-Standard-Prüfsieb.4. Process for the production of milling heads from technical ceramic materials by filling with macro grain in grain size 1-10, according to US standard test sieve. 5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Form des fräsenden Teils des zu schaffenden Werkzeugs mit Makrokorn aus Siliziumkarbid, Edelkorund und ähnlichen Materialien in der Korngröße 1-10, gemäß US-Standard- Prüfsieb, aufgefüllt und mit Aluminium ausgegossen wird.5. The method according to claim 1, characterized in that the Shape of the milling part of the tool to be created Macro grain from silicon carbide, high-grade corundum and the like Materials in grain size 1-10, according to US standard Test sieve, filled and poured out with aluminum. 6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das den Fräskörper bildende Kunstharz vor Abguß zur Verstärkung mit Carbonfasern versetzt wird.6. The method according to claim 1, characterized in that the Resin forming the milling body before casting for reinforcement with carbon fibers.
DE19853533248 1985-09-18 1985-09-18 Process for producing milling cutters by equipping with macro grains of abrasive materials, such as silicon carbide Expired DE3533248C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853533248 DE3533248C1 (en) 1985-09-18 1985-09-18 Process for producing milling cutters by equipping with macro grains of abrasive materials, such as silicon carbide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853533248 DE3533248C1 (en) 1985-09-18 1985-09-18 Process for producing milling cutters by equipping with macro grains of abrasive materials, such as silicon carbide

Publications (1)

Publication Number Publication Date
DE3533248C1 true DE3533248C1 (en) 1987-07-02

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Application Number Title Priority Date Filing Date
DE19853533248 Expired DE3533248C1 (en) 1985-09-18 1985-09-18 Process for producing milling cutters by equipping with macro grains of abrasive materials, such as silicon carbide

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DE (1) DE3533248C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445568A1 (en) * 1990-03-03 1991-09-11 Ernst Winter & Sohn (Gmbh & Co.) Process for manufacturing of a grinding wheel for grinding spectacle lens edges

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS-ERMITTELT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445568A1 (en) * 1990-03-03 1991-09-11 Ernst Winter & Sohn (Gmbh & Co.) Process for manufacturing of a grinding wheel for grinding spectacle lens edges

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