EP1335813B1 - Verfahren und vorrichtung zur oberflächenbehandlung von gegenständen - Google Patents
Verfahren und vorrichtung zur oberflächenbehandlung von gegenständen Download PDFInfo
- Publication number
- EP1335813B1 EP1335813B1 EP01993526A EP01993526A EP1335813B1 EP 1335813 B1 EP1335813 B1 EP 1335813B1 EP 01993526 A EP01993526 A EP 01993526A EP 01993526 A EP01993526 A EP 01993526A EP 1335813 B1 EP1335813 B1 EP 1335813B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inductor
- magnetic
- working
- magnets
- inductors
- 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 - Lifetime
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
- B24B1/005—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes using a magnetic polishing agent
-
- 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
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/10—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work
- B24B31/102—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work using an alternating magnetic field
Definitions
- the invention relates to a method and a device for surface treatment of objects, in particular with a complicated configuration, according to the preambles of claims 1 and 5.
- a device is known from the Sü-500044 with which it is possible to machine parts by means of grinding and influencing the magnetic field.
- the part to be machined is arranged between rotating and stationary magnetic iron ( ⁇ yoke • made of magnetic material) of a magnetic field system.
- the surface of one pole of the magnet iron of the magnet field system consists of an even number of spherical segments with alternating polarity, the surface- 'of the other pole of the magnet iron consists of an even number of sectors of alternating polarity.
- this material when processing a material with magnetic properties, this material constitutes a screen between the movable and non-movable magnet irons and thus prevents the magnetic fluxes of both magnet systems from influencing one another.
- the magnetic flux searches for the shortest path between the poles, i.e. the main magnetic current runs from the north pole via the metal layer of the material to be processed, which leads directly to the surface, to the south pole of the movable magnetic iron.
- An insignificant magnetic flux leads across the air space (working zone) with the abrasive between the neighboring poles of the moving magnetic iron. No processing takes place.
- the rotating magnet system in the described device also creates a processing speed that changes from the maximum on the outer diameter of the system to zero on the axis of rotation.
- the processing is consequently very uneven and unsuitable for many applications.
- .us of DE 28 26 554 C2 is one compared to Sü 5000444 itwas.
- Known improved solution but does not overcome the disadvantages already made.
- the workpiece »machining should in turn take place in a magnetic field with a constant direction. Ejecting grinding powder from the. for the working zone is to be avoided by reducing the rotation of the plate with the workpiece, but this further reduces the effectiveness of the machining.
- JP 62-39172A is an arrangement for polishing a
- the workpiece to be machined may be a maximum of 2 mm to 3 mm thick in order to be able to be machined at all. If the material has larger nicks or non-magnetic materials, no grinding powder gets onto the surface of the workpiece, the magnetic flux does not run over the workpiece.
- the document DE 28 21 783 C2 describes the polishing of a rotating workpiece in a magnetic field of an electromagnet with a constant direction of magnetization.
- the magnetic field is very weak, an auxiliary body is required for the movement of the grinding powder. There is no combined processing, plastic deformation of the surface, mechanical processing of the surface, magnetic processing.
- US 473 . 0418 describes a surface treatment of workpieces that cannot take place evenly because the desired uniform concentration of the magnetic flux on the surface is not achieved.
- the magnetic induction and the magnetic force are low on the surface. Combined processing is not possible.
- the magnetic field has a constant direction here too - with the disadvantages described. There is no concentration of the magnetic flux on the poles.
- the object of the invention is to overcome the known disadvantages of the prior art. Avoid technology and a. Generic method and a generic device to develop, • with which the surface properties of an object to be processed to increase the strength and. Service life can be influenced in a targeted manner by directing the oscillating movement of particles of a magnetic abrasive onto the surface to be processed by increasing the magnetic current in the working zone.
- the method according to the invention is characterized in that the surface of the object to be treated is simultaneously exposed to at least one variable magnetic field with alternating magnetization direction and a static magnetic field with constant magnetization direction, the respective magnetic field in the object to be processed in each case causing a different frequency of ummagnetization, and that at the same time as the magnetic field effect, the surface of the object is subjected to plastic deformation and a material removal process such as cutting, polishing, deburring.
- the device according to the invention is characterized in that the object to be processed is arranged to be movable independently of the rotary drive of the one inductor and that) two working zones are formed between the inductors, and at least one of the inductors is cylindrical " and that the working surfaces of the inductors are arranged parallel to one another, the rotatable inductor being arranged in relation to the fixed inductor in such a way that the " working surface of the fixed ' inductor is not that covers the entire working surface of the rotatable inductor, whereby- • in the. an inductor. Cuboid magnets. and magnet iron alternately and the magnets are arranged radially in the rotatable inductor.
- the surface properties of objects can be influenced in a targeted manner in order to • a. to achieve increased 'surface hardness and an increase in service life.
- the surface roughness can be reduced, edges rounded and burrs removed.
- objects with a complicated configuration can be processed with little economic effort.
- the cyclic polarization and demagnetization of the material improves the material structure by changing the chemical and physical properties of the upper material layers, e.g. Compression behavior, strength limits with regard to tearing, twisting, reduction of dry friction (coefficient of friction).
- the thermal load on the surface during processing is significantly lower than in comparable methods.
- Objects with surfaces made of magnetic as well as non-magnetic materials can be processed, including hard metals with low magnetic conductivity.
- FIG. 2 the schematic side view of a detail of FIG. 1 (work zone),
- Fig. 4 the sectional view through the fixed inductor.
- the device according to the invention essentially consists of an inductor 1 driven by an electric motor 13, a gear 14 and spindles 15, 16, a fixed inductor 4, clamping spindles 18, 19, a rotating ring 17, two Height adjustments 9.10 ..
- An object to be machined here a blank 8 made of a magnetizable material, is introduced via the clamping spindles 18, 19 and the rotating ring 17 into a working zone 20 into which a ferromagnetic abrasive 7 is sprinkled.
- the rotating inductor 1 contains magnets 2 in the form of rectangular parallelepipedons (cuboids) and magnetic Yokes 3 in the form of ring segments, which are alternately arranged radially.
- the magnet distance is ti (Fig. 3).
- the fixed inductor 4 alternately contains magnets 6 and magnetic yokes 5 arranged parallel to one another, which have the shape of a right-angled parallelepiped (cuboid), the magnet spacing being t 2 (FIG. 4).
- the magnets 2, 6 are arranged so that their poles are on the flank sides that touch the magnetic yokes 3, 5.
- the magnetic field emanating from the magnets 2, 6 is guided through the magnetic yokes 3, 5.
- the magnets 2, 6 face each other with poles of the same name, so that through
- each magnetic yoke 3, 5 the sum of the magnetic field lines of two adjacent magnets 2, 6 is guided.
- the ferromagnetic abrasive 7 located on the working surfaces of the inductors 1, 4 has a better one
- the forces of the magnetic field cause a pressure on the surface of the blank 8 via the powder granules of the abrasive 7.
- the sizes of the pole surfaces of the magnets 2, 6 are determined by the requirement that the respective surface of the pole of the magnetic yokes 3, 5 should be smaller than the respective pole surface of the magnet 2, 6.
- Blank 8 ⁇ is produced in a size that. the necessary
- the height adjustments 9, 10 are provided to adjust the size of the working zone 20 and to coordinate it with the size of the blank 8 to be machined. 0
- the slewing ring 17 with the clamping spindles 18, 19 is used to change the blank 8. the "stock position” to the "working position” 1 . '
- the blank 8 When the turntable 17 is rotated, the blank 8 is brought from the “stock position” (FIG. 1, right edge of the image) into the fixed working position in the working zone 20 between the inductors 1, 4, in which a rotation of the blank 8 can be set ,
- the rotating inductor 1 continuously releases ferromagnetic grinding powder 7 into the processing zone 20 during its movement, so that grinding powder 7 is uniformly distributed in the vicinity of the blank 8.
- the powder grains 7 continuously mix in the working zone 20 and not only implement the plastic deformation of the surface layers of the material 8, but also cut the existing and / or emerging micro chips. This is confirmed by measurements of the micro strength of the surface and the change in the weight of the blank 8 before and after processing. If there are 8 different chips, tips and the like on the surface of the blank, on which burrs are, then the burrs are cut away, pointed edges and edges get a melting rounding with a micro radius. The reason for these machining processes are the sharp edges and burrs, which form concentrators of the magnetic current with very large magnetic induction and are therefore machined primarily.
- the size of the radius of the rounding is regulated by the selected machining regime, for example strength of the magnetic field, grain size of the abrasive 7.
- non-rotating inductor 4 in which the working surface is smaller and does not cover the entire working surface of the rotating inductor 1, reduces the zone within the blank. 8, in which the grains of the powder 7 may be ground, what v to increase the useful life of a portion of powder 7 leads.
- the magnets 2 of the rotating inductor 1 have the shape of a ring segment, therefore the thickness of the magnetic yokes 3 and correspondingly the width of the pole decreases towards the center of the inductor 1 (FIG. 3), the magnetic induction increases according to the following relationship:
- By increasing the magnetic induction is compensated for this dependency.
- the pressure of the grains - of the powder 7 on the surface to be processed is increased and the [5 material removal is increased.
- the inductors 1, 4 are made from permanent magnets of a small width of the individual magnets 2, 6. As a result, the adjacent poles of the majority of the magnets 2, 6 are so
- the working surface of the inductors 1, 4 is covered with a network of a large number of concentrators of the magnetic current, since each edge of the magnetic iron (yokes) 3,
- the productivity of the combined strengthening mechanical and magnetic machining according to the invention is much higher than the machining with mechanisms with electromagnets.
- Machining can be carried out without adding liquid with surface-active substances, which is always used to intensify the machining process with mechanisms with electromagnets.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Chemical Treatment Of Metals (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10055382 | 2000-11-08 | ||
DE10055382A DE10055382A1 (de) | 2000-11-08 | 2000-11-08 | Verfahren und Vorrichtung zur Oberflächenbehandlung von Gegenständen |
PCT/EP2001/012952 WO2002038334A1 (de) | 2000-11-08 | 2001-11-08 | Verfahren und vorrichtung zur oberflächenbehandlung von gegenständen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1335813A1 EP1335813A1 (de) | 2003-08-20 |
EP1335813B1 true EP1335813B1 (de) | 2008-06-04 |
Family
ID=7662594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01993526A Expired - Lifetime EP1335813B1 (de) | 2000-11-08 | 2001-11-08 | Verfahren und vorrichtung zur oberflächenbehandlung von gegenständen |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1335813B1 (de) |
AT (1) | ATE397514T1 (de) |
AU (1) | AU2002221826A1 (de) |
DE (2) | DE10055382A1 (de) |
WO (1) | WO2002038334A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005010286A1 (de) | 2005-03-01 | 2006-09-07 | Thiel, Wolfgang, Dr. | Bearbeitungsvorrichtung und -verfahren zum Bearbeiten von Oberflächen in Vertiefungen von Werkstücken |
DE102009015158A1 (de) | 2009-03-26 | 2010-09-30 | ZOM Oberflächenbearbeitung GmbH | Werkzeugmaschine zur magnetabrasiven Bearbeitung |
US20130319866A1 (en) | 2012-05-29 | 2013-12-05 | Lucy Elizabeth Browning | Anodized films |
CN104148993B (zh) * | 2014-08-14 | 2016-05-18 | 厦门大学 | 微型焊针内孔研磨装置 |
CN108312050B (zh) * | 2018-01-11 | 2019-11-08 | 辽宁科技大学 | 可调节加工间距的双磁极盘磁力研磨机及磁力研磨方法 |
CN111590439B (zh) * | 2020-05-25 | 2021-07-27 | 安徽省阜南志峰工艺品有限公司 | 一种五金制作用铁制品高效除锈装置及其使用方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU500444A1 (ru) * | 1973-06-08 | 1976-01-25 | Ордена Трудового Красного Знамени Институт Тепло-И Массообмена Ан Белорусской Сср | Нагреватель дл сушки капилл рнопористых материалов |
SU500044A1 (ru) * | 1974-03-04 | 1976-01-25 | Уфимский авиационный институт им. Орджоникидзе | Устройство дл магнитно-абразивной обработки деталей |
DE2821783C2 (de) * | 1978-05-18 | 1982-04-15 | Fiziko-techničeskij institut Akademii Nauk Belorusskoj SSR, Minsk | Verfahren und Einrichtung zum Ändern des Konzentrationsgefälles von ferromagnetischem Schleif- oder Polierpulver |
DE2826554C2 (de) * | 1978-06-16 | 1982-11-18 | Fiziko-techničeskij institut Akademii Nauk Belorusskoj SSR, Minsk | Werkzeugmaschine zum Schleifen der Oberflächen von Werkstücken mit von Magnetfeldern gehaltenem ferromagnetischem Schleifpulver |
JPS62120970A (ja) * | 1985-11-15 | 1987-06-02 | Kureha Chem Ind Co Ltd | 磁気研磨装置 |
RU2078676C1 (ru) * | 1995-03-02 | 1997-05-10 | Андрей Викторович Киричек | Способ комбинированной упрочняющей обработки |
-
2000
- 2000-11-08 DE DE10055382A patent/DE10055382A1/de not_active Ceased
-
2001
- 2001-11-08 AU AU2002221826A patent/AU2002221826A1/en not_active Abandoned
- 2001-11-08 EP EP01993526A patent/EP1335813B1/de not_active Expired - Lifetime
- 2001-11-08 WO PCT/EP2001/012952 patent/WO2002038334A1/de active IP Right Grant
- 2001-11-08 DE DE50113870T patent/DE50113870D1/de not_active Expired - Lifetime
- 2001-11-08 AT AT01993526T patent/ATE397514T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE10055382A1 (de) | 2002-05-23 |
DE50113870D1 (de) | 2008-10-02 |
AU2002221826A1 (en) | 2002-05-21 |
EP1335813A1 (de) | 2003-08-20 |
ATE397514T1 (de) | 2008-06-15 |
WO2002038334A1 (de) | 2002-05-16 |
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