DE715807C - Grinding wheel made of vitrified bonded grain of various sizes - Google Patents

Grinding wheel made of vitrified bonded grain of various sizes

Info

Publication number
DE715807C
DE715807C DED78172D DED0078172D DE715807C DE 715807 C DE715807 C DE 715807C DE D78172 D DED78172 D DE D78172D DE D0078172 D DED0078172 D DE D0078172D DE 715807 C DE715807 C DE 715807C
Authority
DE
Germany
Prior art keywords
grinding wheel
various sizes
wheel made
vitrified bonded
grain
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
DED78172D
Other languages
German (de)
Inventor
Friedrich Richard Dietrich
Hermann Schwindl
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.)
HERMANN SCHWINDL
Original Assignee
HERMANN SCHWINDL
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 HERMANN SCHWINDL filed Critical HERMANN SCHWINDL
Priority to DED78172D priority Critical patent/DE715807C/en
Application granted granted Critical
Publication of DE715807C publication Critical patent/DE715807C/en
Expired 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
    • B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

Schleifscheibe aus keramisch gebundenem Körn verschiedener Größe Die Herstellung von Schleifscheiben aus natürlichem oder künstlichem Korund erfolgte bisher entweder durch Gießen oder durch Pressen, wobei mit den verschiedensten Bindemittels gearbeitet werden kann: Es ist bekannt, sowohl radial ,als auch axial stufenförnge Unterteilungen der Schleifscheibe vorzunehmen, um dem, technischen. Anforderungen einigermaßen .gerecht zu werden. Nach den bekannten -Verfahren wird dabei verschiedenartiger Werkstoff verwendet, wobei die Verbindung .. .der einzelnen Ringstufen einer Scheibe untereinander noch besonders durch Verzahnung erfolgt.Grinding wheel made of vitrified bonded grains of various sizes Die Production of grinding wheels from natural or artificial corundum took place so far either by pouring or by pressing, with a wide variety of binders can be worked: It is known to have both radial and axial steps To make subdivisions of the grinding wheel in order to meet the, technical. requirements to be fair. According to the known method, this becomes more diverse Material used, whereby the connection ... ... of the individual ring stages of a disc among each other is still carried out especially through interlocking.

Es ist weiterhin bekannt, Schleifscheiben .an beliebiger Stelle eine . größere Härte dadurch zu geben, daß. ,die .aus Schleifkörnern gleicher Größe bestehende Masse an den betreffenden Stellen eine größere Pressung `erfährt.It is also known to use grinding wheels at any point . to give greater hardness in that. consisting of abrasive grains of the same size Mass at the points concerned is subjected to greater compression.

Zweck der vorliegenden Erfindung ist, eine nach bestimmten Erfahrungswerten gemischte Körnung durch Zentrifugalkraft im Schleuder-Bußverfahren stufenlos zu entmischen, -so, daß die gröberen und deshalb schwereren Körner an die Außenzone der Scheibe zu liegen kommen; während. die Körnung nach der Mitte zu stufenlos abnimmt. -Es soll durch die Erfindung eine Schleifscheibe ;geschaffen werden, die für ein. und denselben Verwendungszweck bis zum Schluß bei nahezu gleichbleibender Schleifleishmg aufgebraucht werden kann. Dem bekannten Erfahrungsgrundsatz bei Schleifscheiben.: großer Scheibendurchmesser, d.h. hohe Umfamgsgeschivindzgkeit bei ,grober Körnung; und -kleiner Scheibendurchmesser, ,d. h. niedrige Umfangsgeschwinidigkeit bei feiner Körnung; wird mit der Schleifscheibe nach der Erfindung bei gleichbleibender Drehzahl entsprochen. Bei dem Herstellungsverfahren ergibt sich zwangsläufig nach der mit anderen. Mitteln nicht erreichbare -Vorteil; daß das Gefüge nach der Außenzone der Scheibe zu time stufenlos zunehmende Verdichtung erfährt, während das spezifisch leichtere Bindemittel nach der Scheibe weine stufenlos zunehmende Hlärte der Scheibe bedlügt.The purpose of the present invention is one based on certain empirical values mixed grain size is continuously increased by centrifugal force in the centrifugal-fine process segregate, -so that the coarser and therefore heavier grains to the outer zone the disc come to rest; while. the grain gradually decreases towards the middle. The invention aims to create a grinding wheel that is suitable for a. and the same purpose to the end with almost the same abrasive wear can be used up. The well-known principle of experience with grinding wheels: large pulley diameter, i.e. high circumferential speed with, coarse grain size; and -small disk diameter,, d. H. low peripheral speed with finer Grit; is with the grinding wheel according to the invention at a constant speed complied. In the manufacturing process, the with others. Means not achievable -Advantage; that the structure according to the outer zone of the Disk to time experiences continuously increasing compression, while that specifically lighter binders after the disc weep continuously increasing hardness of the disc lies.

Claims (1)

PATENTANSPRUCH: Schleifscheibe ,aus keramisch gebundenern, verschiedene Größe aufweisendem Korn und verschiedener Härte; dadurch gekennzeichnet, daß die Größe der Körnung vom. der Mitte nach dem, Umfange der Schleifscheibe zu stufenlos zunimmt und diese Lagerung der Körner durch Schleudern der Masse während des Gießens herbeigeführt wird. PATENT CLAIM: Grinding wheel made of vitrified bonded grains of different sizes and different hardnesses; characterized in that the size of the grain from. the middle after the circumference of the grinding wheel increases continuously and this storage of the grains is brought about by centrifuging the mass during casting.
DED78172D 1938-06-11 1938-06-11 Grinding wheel made of vitrified bonded grain of various sizes Expired DE715807C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED78172D DE715807C (en) 1938-06-11 1938-06-11 Grinding wheel made of vitrified bonded grain of various sizes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED78172D DE715807C (en) 1938-06-11 1938-06-11 Grinding wheel made of vitrified bonded grain of various sizes

Publications (1)

Publication Number Publication Date
DE715807C true DE715807C (en) 1942-01-07

Family

ID=7062657

Family Applications (1)

Application Number Title Priority Date Filing Date
DED78172D Expired DE715807C (en) 1938-06-11 1938-06-11 Grinding wheel made of vitrified bonded grain of various sizes

Country Status (1)

Country Link
DE (1) DE715807C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261772B (en) * 1955-05-02 1968-02-22 Minnesota Mining & Mfg Process for the production of a reinforcement hub on a grinding wheel with synthetic resin bond by means of centrifugal casting
DE1283698B (en) * 1960-03-02 1968-11-21 Osborn Mfg Co Process for the production of grinding wheels
DE19533836A1 (en) * 1995-09-13 1997-03-20 Winter & Sohn Ernst Grinding tool and method and device for its manufacture

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261772B (en) * 1955-05-02 1968-02-22 Minnesota Mining & Mfg Process for the production of a reinforcement hub on a grinding wheel with synthetic resin bond by means of centrifugal casting
DE1283698B (en) * 1960-03-02 1968-11-21 Osborn Mfg Co Process for the production of grinding wheels
DE19533836A1 (en) * 1995-09-13 1997-03-20 Winter & Sohn Ernst Grinding tool and method and device for its manufacture
US5853319A (en) * 1995-09-13 1998-12-29 Ernst Winter & Sohn Diamantwerkzeuge Gmbh & Co. Grinding tool
DE19533836B4 (en) * 1995-09-13 2005-07-21 Ernst Winter & Sohn Diamantwerkzeuge Gmbh & Co. Profile grinding wheel and method and apparatus for manufacturing

Similar Documents

Publication Publication Date Title
US2418529A (en) Embrittled silver solder bonded abrasive
DE2509657A1 (en) ABRASIVES AND METHOD FOR MANUFACTURING IT
DE7434685U (en) REINFORCED RESIN BONDED GRINDING DISC
CH638473A5 (en) METHOD FOR PRODUCING DIAMOND GRINDING BODIES.
DE715807C (en) Grinding wheel made of vitrified bonded grain of various sizes
US1625463A (en) Diamond lap
DE1245791B (en) Apparatus for the production of spheroidal particles from nuclear fuel
US3476537A (en) Abrasive composition with limestone as the porosity-inducing agent
DE849600C (en) Process for the manufacture of grinding bodies, in particular for household coffee grinders
DE2458335A1 (en) Ceramic fibre inserts in cast brake discs - used to alter resonant frequencies and reduce squealing of brakes
DE628936C (en) Process for the production of abrasive grains
DE603163C (en) Process for making dental abrasives
DE812294C (en) Abrasive body with bond made of finely divided oxides
AT69291B (en) Device for the production of beads, buttons or the like. Made of wood, celluloid, horn, artificial horn or similar materials.
AT32617B (en) Method and apparatus for the manufacture of toric lenses for eyeglasses u. like
WO2002016082A1 (en) Honing tool
DE889165C (en) Process for the production of piston rings from sintered iron
US2109416A (en) Rosin for violin bows, etc.
DE747930C (en) Heavy-duty piston rings in high-speed internal combustion engines
DE323875C (en) Process for the manufacture of abrasive bodies
DE662615C (en) Process for the production of grinding stones, especially for wood grinders
DE827458C (en) Process for producing wreaths for grinding and polishing wheels
AT360363B (en) RESIN-BOND GRINDING BODIES WITH SYNTHETIC RD-DIAMOND PARTICLES
US1381953A (en) Valve-grinding compound
AT68913B (en) Process for the production of grinding wheels, whetstones, whetstones, millstones and the like.