DE19947985A1 - High speed applicator tool for applying material melted by friction; rotates at high speed and has friction area with bores for cooling material which is made into droplets by rotating disc - Google Patents

High speed applicator tool for applying material melted by friction; rotates at high speed and has friction area with bores for cooling material which is made into droplets by rotating disc

Info

Publication number
DE19947985A1
DE19947985A1 DE1999147985 DE19947985A DE19947985A1 DE 19947985 A1 DE19947985 A1 DE 19947985A1 DE 1999147985 DE1999147985 DE 1999147985 DE 19947985 A DE19947985 A DE 19947985A DE 19947985 A1 DE19947985 A1 DE 19947985A1
Authority
DE
Germany
Prior art keywords
high speed
friction
area
bores
rotates
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.)
Withdrawn
Application number
DE1999147985
Other languages
German (de)
Inventor
Wilhelm Koenig
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 DE1999147985 priority Critical patent/DE19947985A1/en
Publication of DE19947985A1 publication Critical patent/DE19947985A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with cooling provisions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

The tool (1) rotates at high speed and has a friction area to contact the work piece to be connected, which has bores (5) through which the coolant is transmitted out of a flank area (2). A rotating disc produces a flow of oil or water droplets. The cooling mixture is supplied through bores ending in the flank area and transport to the friction area and to the ductile area (6) by ventilation action.

Description

Zur Realisierung des Hoch-Geschwingigkeits-Abtrag muß das HGA- Werkzeug einerseits das abzutragende Material durch Reibungs­ kontakt erschmelzen und andererseits abtransportieren. Die Bin­ dung zum verbleibenden Grundmaterial muß dabei abreißen, ohne erstens einen nennenswerten Wärmefluß, zweiten vor allem jedoch ohne die bei einem spanenden Abtrag entstehende senkrecht ins Basismaterial entstehende Tiefenrißbildung zu erzeugen. Daher muß jedes soeben duktil werdende Partikelchen sofort abtrans­ portiert werden. Die Erschmelzung der Kontaktzone durch Reib­ kontakt ist bei Umfangsgeschwindigkeiten 400-500 m/s kein Pro­ blem, das Aufbrechen der molekularen Bindungen hingegen bedarf neben der Beschleunigung die dem Erschmolzenen vermittelt wer­ den muß auch einer Trennung vom verbleibenden Material, welches die neue unzerstörte Oberfläche bilden soll. Dem Werkzeug ist daher neben der Reibfähigkeit auch eine Angriffsfähigkeit zu verschaffen die die Beschleunigung und gleichzeitige Trennung vom verbleibenden Material ermöglicht. Da die partielle Er­ schmelzung auch gehindert werden muß einen Wärmetransport in das verbleibende Grundmaterial vorzunehmen, ist es erforderlich durch Schockkühlung, und damit durch Rißbildung jedoch in tan­ getialer Richtung, die molekulare Bindung zu unterbrechen. Die Auswahl der Mischung aus gasförmiger und Beimengungen von Tröpfchen-Konzentrationen und Zusammensetzungen ist je nach abzutragenden Materialien unterschiedlich. So kann z. B. die Wahl von Öl bei Stahl eine Konzentrationserhöhung von Kohlenstoff im verbleibenden Oberflächenmaterial bedeuten und damit eine Erhö­ hung der Härte mit sich bringen. Bei Glas- und Keramikmateria­ lien kann die extreme Aufnahme von Verdampfungswärme zur o. e. Spannungsrißbildung in Tangetialrichtung führen, und damit die beiden erforderlichen Effekte Trennung und Wärmeflußunterbre­ chung begünstigen.To realize the high-speed removal, the HGA Tool on the one hand the material to be removed by friction melt the contact and on the other hand remove it. The bin The remaining basic material must tear off without firstly, a significant heat flow, but secondly, above all without the vertical incurred during machining Base material to generate resulting deep crack formation. Therefore every particle that is just becoming ductile must be removed immediately be ported. The melting of the contact zone by rubbing Contact is not a pro at circumferential speeds of 400-500 m / s blem, the breaking of the molecular bonds, however, requires in addition to the acceleration, who is conveyed to the melted it must also be separated from the remaining material to form the new undestroyed surface. The tool is Therefore, in addition to the friction, it also has an attack ability create acceleration and simultaneous separation of the remaining material. Since the partial Er Melting must also be prevented from transporting heat to carry out the remaining basic material, it is necessary by flash cooling, and therefore by cracking in tan getial direction to break the molecular bond. The Selection of the mixture of gaseous and admixtures of Droplet concentrations and compositions vary depending materials to be removed differently. So z. B. the choice of oil in steel a concentration increase of carbon in remaining surface material mean and thus an increase bring with it the hardship. For glass and ceramic materials The extreme absorption of heat of evaporation can lead to the above. Stress cracks in the tangential direction, and thus the two required effects separation and heat flow interruption favor.

Die Kühlung ist auf jeden Fall als Minimalkühlwirkung im Duk­ tilbereich auszuführen, da erstens die Erschmelzung abzutragen­ den Materials nicht gestört wird und zweitens alles Kühlmateri­ al in gasförmigen, mit möglichst geringen, stark geminderten Tröpfchenanteil anfällt, zum optimalen Abtransport mit atomi­ sierten Abtragsmaterial durch Absaugung.The cooling is definitely the minimum cooling effect in the duke tile range, firstly because the melting has to be removed the material is not disturbed and secondly all cooling material  al in gaseous form, with the smallest possible, greatly reduced Droplet fraction is obtained for optimal removal with atomi removed material by suction.

Ein Ausführungsbeispiel ist in Fig. 1 dargestellt.An embodiment is shown in Fig. 1.

BezugszeichenlisteReference list

11

Einteiliges Schaftwerkzeug
One-piece shank tool

22nd

Flankenbereich indem die Kühlmischung bereitgestellt wird, so daß sie an der richtigen Stelle im Duktilbereich ankommt
Flank area by providing the cooling mixture so that it arrives at the right place in the ductile area

33rd

Strömungunterstützung, sofern eine glatte Wand nicht aus­ reicht
Flow support if a smooth wall is not enough

44th

Zuführung der Tröpfchen aus flüssigen Kühlmaterialien
Feeding the droplets from liquid cooling materials

55

Bohrungen im Werkzeugkörper o. Transportkanäle in Radial­ richtung, auch in der Wandung des Werkzeuges, auch endend in Querkanälen im Reibbereich
Bores in the tool body or transport channels in the radial direction, also in the wall of the tool, also ending in transverse channels in the friction area

66

Duktilbereich im abzutragenden Werkstoff
Ductile area in the material to be removed

Claims (1)

HGA-Werkzeug, dadurch gekennzeichnet, daß der mit dem Werkstück in Verbindung tretende Reibbereich des mit hoher Umfangsge­ schwindigkeit rotierenden Werkzeugs (1) von Bohrungen unterbro­ chen ist, durch die aus einem in den Flankenbereich (2) des Werkzeugscheibenkörpers Kühlmittel transportiert wird indem die, eine rotierende Scheibe umgebende Strömung, angereichert z. B. mit Öl- o. Wasertröpfchen, mitreißt und diese Kühlmischung durch Eintritt in die im Flankenbereich endenden Bohrungen und diese durch die Ventilatorwirkung für den Transport zum Reibbe­ reich und damit zum Duktilbereich sorgen.HGA tool, characterized in that the friction area of the tool ( 1 ) rotating at high circumferential speed, which comes into contact with the workpiece, is interrupted by bores through which coolant is transported from a flank area ( 2 ) of the tool disk body by a rotating disk surrounding flow, enriched z. B. with oil o. Water droplets, entrains and this cooling mixture by entering the holes in the flank area and this through the fan effect for transport to Reibbe rich and thus to the ductile area.
DE1999147985 1999-10-05 1999-10-05 High speed applicator tool for applying material melted by friction; rotates at high speed and has friction area with bores for cooling material which is made into droplets by rotating disc Withdrawn DE19947985A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999147985 DE19947985A1 (en) 1999-10-05 1999-10-05 High speed applicator tool for applying material melted by friction; rotates at high speed and has friction area with bores for cooling material which is made into droplets by rotating disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999147985 DE19947985A1 (en) 1999-10-05 1999-10-05 High speed applicator tool for applying material melted by friction; rotates at high speed and has friction area with bores for cooling material which is made into droplets by rotating disc

Publications (1)

Publication Number Publication Date
DE19947985A1 true DE19947985A1 (en) 2001-04-12

Family

ID=7924592

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999147985 Withdrawn DE19947985A1 (en) 1999-10-05 1999-10-05 High speed applicator tool for applying material melted by friction; rotates at high speed and has friction area with bores for cooling material which is made into droplets by rotating disc

Country Status (1)

Country Link
DE (1) DE19947985A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19962126B4 (en) * 1999-12-21 2008-08-28 König, Wilhelm Laser-assisted high-speed removal
CN108942697A (en) * 2017-05-26 2018-12-07 通用电气公司 polishing tool and its manufacturing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19962126B4 (en) * 1999-12-21 2008-08-28 König, Wilhelm Laser-assisted high-speed removal
CN108942697A (en) * 2017-05-26 2018-12-07 通用电气公司 polishing tool and its manufacturing method

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee
8170 Reinstatement of the former position
8139 Disposal/non-payment of the annual fee