ES337713A1 - Method of smoothing - Google Patents

Method of smoothing

Info

Publication number
ES337713A1
ES337713A1 ES337713A ES337713A ES337713A1 ES 337713 A1 ES337713 A1 ES 337713A1 ES 337713 A ES337713 A ES 337713A ES 337713 A ES337713 A ES 337713A ES 337713 A1 ES337713 A1 ES 337713A1
Authority
ES
Spain
Prior art keywords
wheel
grinding efficiency
workpiece
area
layers
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
ES337713A
Other languages
Spanish (es)
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.)
Norton Abrasives Ltd
Original Assignee
Norton Abrasives Ltd
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
Priority to GB00908/66A priority Critical patent/GB1181782A/en
Application filed by Norton Abrasives Ltd filed Critical Norton Abrasives Ltd
Publication of ES337713A1 publication Critical patent/ES337713A1/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING, OR SHARPENING
    • B24D5/00Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/14Zonally-graded wheels; Composite wheels comprising different abrasives

Abstract

A method of snagging a workpiece, e.g. a steel slab or billet prior to rolling it into sheet or strip form, comprises contacting said workpiece with the peripheral surface of a rotating snagging wheel, said peripheral surface including a first surface area of relatively high grinding efficiency and a second surface area of relatively low grinding efficiency, said first surface area being located at a different radial distance from the wheel axis than said second surface area, while effecting relative movement between said workpiece and said wheel such that said workpiece is contacted by said second surface after being contacted by said first surface area, said relative movement including a component of movement parallel to the axis of rotation of said wheel, whereby to impart to said workpiece a surface finish superior to that which would be achieved by contacting the workpiece solely with said first area while achieving a grinding efficiency greater than that which would be achieved by contacting the workpiece solely with said second area. A snagging wheel, Fig. 1a for use in a reciprocating type of snagging operation, has outer ayers 2 of high grinding efficiency comprising a relatively coarse abrasive material and an inner layer 3 of lower grinding efficiency comprising finer or more friable abrasive material. The layers may be moulded as a single wheel, the layers may be made separately and cemented together to form a single wheel or the layers may be made as separate wheels and mounted on a single spindle. The wheel may be formed with a convex contour if formed cylindrically, it acquires the convex contour when snagging is started. Thus, the layer 3 determines the nature of the finish. In a modification, Fig. 2a (not shown), a wheel has outermost layers (5) of high grinding efficiency, intermediate layers (6) of lower grinding efficiency and a middle layer (7) of still lower grinding efficiency. In a further modification, Fig. 3a, a wheel for use in a unidirectional type of snagging operation, has a leading layer 9 of high grinding efficiency and a trailing layer 10 of lower grinding efficiency. A wheel according to Figs. 1a, 2a or 3a may be moved across the surface of a workpiece 11 with its median plane at right-angles to the surface, Fig. 4, or at an acute angle to the surface in the direction of movement, Fig. 5. The wheel may be reciprocated in the case of Fig. 4, no change of attitude of the wheel at the end of each pass is necessary but in the case of Fig. 5, the tilt of the wheel must be reversed at the end of each pass moreover, a wheel as in Fig. 3a would have to be rotated through 180 degrees at the end of each pass. The arrangement of layers may be reversed, so that the high grinding efficiency area is further from the axis than areas of lower grinding efficiency. Such a wheel is moved across the workpiece surface with its median plane at an obtuse angle to the surface in the direction of. movement, Fig. 6. When the wheel is reciprocated, the angle of tilt is reversed at the end of each pass. The layers may comprise the same abrasive material but of different particle sizes, different abrasive materials of the same particle sizes, or different abrasive materials of different particle sizes. The preferred abrasive material is sintered bauxite but others such as fused alumina may be used. The binder may be resin. There may be a continuous gradation of grinding efficiency from one peripheral edge of the wheel to the opposite edge of the wheel.
ES337713A 1966-03-11 1967-03-07 Method of smoothing Expired ES337713A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB00908/66A GB1181782A (en) 1966-03-11 1966-03-11 Improvements relating to Grinding

Publications (1)

Publication Number Publication Date
ES337713A1 true ES337713A1 (en) 1968-03-01

Family

ID=9976506

Family Applications (1)

Application Number Title Priority Date Filing Date
ES337713A Expired ES337713A1 (en) 1966-03-11 1967-03-07 Method of smoothing

Country Status (7)

Country Link
US (1) US3537216A (en)
AT (1) AT280837B (en)
DE (1) DE1652134A1 (en)
ES (1) ES337713A1 (en)
FR (1) FR1516435A (en)
GB (1) GB1181782A (en)
SE (1) SE335688B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916920A (en) * 1973-05-02 1975-11-04 Sakichi Tsukamoto Fingernail polishing device
US4196547A (en) * 1978-02-22 1980-04-08 Caterpillar Tractor Co. Cylinder liner honing
DE3617700A1 (en) * 1986-05-26 1987-12-03 Kloeckner Humboldt Deutz Ag FLAT ROUND GRINDING
DE3811584A1 (en) * 1988-04-07 1989-10-19 Winter & Sohn Ernst GRINDING WHEEL FOR DEEP GRINDING
US5888129A (en) * 1996-05-15 1999-03-30 Neff; Charles E. Grinding wheel
JP2006082197A (en) * 2004-09-17 2006-03-30 Toyoda Mach Works Ltd Grinding wheel
DE102006035845A1 (en) 2006-08-01 2008-02-07 Erwin Junker Maschinenfabrik Gmbh Method of grinding an indexable insert and grinding wheel for carrying out the grinding process
US20110028074A1 (en) * 2009-08-03 2011-02-03 Canon Kabushiki Kaisha Polishing method for a workpiece and polishing tool used for the polishing method
ITPD20110305A1 (en) * 2011-09-28 2013-03-29 Domenico Privitera Peripheral wheel for processing sheet edges
DE102013202509A1 (en) * 2013-02-15 2014-08-21 Erwin Junker Grinding Technology A.S. METHOD AND GRINDING TOOL FOR HIGH-ACCURACY CENTERLESS GRINDING OF HIGH-SURFACE WAVE PARTS
CN103406819B (en) * 2013-08-23 2015-05-06 摩士集团股份有限公司 Bearing seal groove forming plunge-cut grinding method
USD785339S1 (en) * 2014-10-23 2017-05-02 Griot's Garage, Inc. Hand applicator buffing pad
CN104476419A (en) * 2014-11-25 2015-04-01 苏州群力防滑材料有限公司 Multi-granularity stepped abrasive paper wheel
JP6407773B2 (en) * 2015-03-13 2018-10-17 日本碍子株式会社 Honeycomb structure manufacturing method and grinding wheel
GB201504759D0 (en) * 2015-03-20 2015-05-06 Rolls Royce Plc Abrading tool for a rotary dresser
JP6554960B2 (en) * 2015-07-16 2019-08-07 株式会社ジェイテクト Grinding wheel
US11040430B2 (en) * 2016-02-29 2021-06-22 Charles Neff Texture pattern for abrasive tool
US20190030684A1 (en) * 2016-03-03 2019-01-31 3M Innovative Properties Company Depressed center grinding wheel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1009877A (en) * 1910-12-22 1911-11-28 Leslie Mfg Company Apparatus for grinding blades.
US1616531A (en) * 1922-08-08 1927-02-08 Norton Co Cutting-off abrasive wheel
US2198377A (en) * 1937-04-27 1940-04-23 Norton Co Lapping machine
US3019562A (en) * 1959-12-03 1962-02-06 Landis Tool Co Grinding machine with dual purpose grinding wheels

Also Published As

Publication number Publication date
DE1652134A1 (en) 1971-04-15
GB1181782A (en) 1970-02-18
AT280837B (en) 1970-04-27
FR1516435A (en) 1968-03-08
SE335688B (en) 1971-06-01
US3537216A (en) 1970-11-03

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