SE335688B - - Google Patents
Info
- Publication number
- SE335688B SE335688B SE02846/67A SE284667A SE335688B SE 335688 B SE335688 B SE 335688B SE 02846/67 A SE02846/67 A SE 02846/67A SE 284667 A SE284667 A SE 284667A SE 335688 B SE335688 B SE 335688B
- Authority
- SE
- Sweden
- Prior art keywords
- wheel
- grinding efficiency
- workpiece
- snagging
- layers
- Prior art date
Links
Classifications
-
- 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
-
- 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
- B24D5/14—Zonally-graded wheels; Composite wheels comprising different abrasives
Abstract
1,181,782. Snagging. NORTON ABRASIVES Ltd. 1 March, 1967 [11 March, 1966], No. 10908/66. Heading B3D. 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.
Applications Claiming Priority (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 |
---|---|
SE335688B true SE335688B (en) | 1971-06-01 |
Family
ID=9976506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE02846/67A SE335688B (en) | 1966-03-11 | 1967-03-02 |
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 (21)
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 SLAB EDGES PROCESSING |
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 |
EP3423235B1 (en) * | 2016-03-03 | 2022-08-24 | 3M Innovative Properties Company | Depressed center grinding wheel |
CN109290973B (en) * | 2018-11-12 | 2023-08-15 | 深圳市拍档科技有限公司 | Cylindrical polishing rod manufacturing device and method |
CN112975641B (en) * | 2021-02-08 | 2022-05-27 | 华中科技大学 | Wafer edge grinding method and device |
US20220305567A1 (en) * | 2021-03-25 | 2022-09-29 | William B. Dannehl | Repair Tool And Method |
Family Cites Families (4)
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 |
-
1966
- 1966-03-11 GB GB00908/66A patent/GB1181782A/en not_active Expired
-
1967
- 1967-03-02 SE SE02846/67A patent/SE335688B/xx unknown
- 1967-03-04 DE DE19671652134 patent/DE1652134A1/en active Pending
- 1967-03-06 FR FR97549A patent/FR1516435A/en not_active Expired
- 1967-03-07 ES ES337713A patent/ES337713A1/en not_active Expired
- 1967-03-07 AT AT217267A patent/AT280837B/en not_active IP Right Cessation
- 1967-03-13 US US622638A patent/US3537216A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3537216A (en) | 1970-11-03 |
GB1181782A (en) | 1970-02-18 |
AT280837B (en) | 1970-04-27 |
DE1652134A1 (en) | 1971-04-15 |
FR1516435A (en) | 1968-03-08 |
ES337713A1 (en) | 1968-03-01 |
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