EP0219825B1 - Méthode, machine et outil pour le rodage de pièces - Google Patents

Méthode, machine et outil pour le rodage de pièces Download PDF

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Publication number
EP0219825B1
EP0219825B1 EP86114375A EP86114375A EP0219825B1 EP 0219825 B1 EP0219825 B1 EP 0219825B1 EP 86114375 A EP86114375 A EP 86114375A EP 86114375 A EP86114375 A EP 86114375A EP 0219825 B1 EP0219825 B1 EP 0219825B1
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EP
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Prior art keywords
honing
tool
stroke
working
zone
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Expired - Lifetime
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EP86114375A
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German (de)
English (en)
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EP0219825A2 (fr
EP0219825A3 (en
Inventor
Wolf Nagel
Peter Nagel
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Nagel Maschinen und Werkzeugfabrik GmbH
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Nagel Maschinen und Werkzeugfabrik GmbH
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Publication of EP0219825A3 publication Critical patent/EP0219825A3/de
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    • 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
    • B24B33/00—Honing machines or devices; Accessories therefor
    • B24B33/08—Honing tools

Definitions

  • the invention relates to a method, a honing machine and a honing tool for honing workpieces.
  • a method has become known from DE-A1-24 60 997, which describes the closest prior art, in which the processing is carried out with a honing pad that can be expanded with a honing tool, with an expanding cutting zone and a calibration zone, in which the honing pad is used before the main Working strokes made according to the finished dimension and this fixed dimension setting is kept unchanged until the end of machining and in which the rotatingly driven tool carries out a single main working stroke, in the cutting and calibration zone with machining intervention and material removal over the length of the machining area in an axial movement of the Tool is moved through the entire machining area.
  • this method works extremely well and advantageously.
  • the object of the invention is to provide a method, a honing machine and a honing tool with which blind holes or stepped bores can also be machined with only one or a few honing strokes.
  • the tool In the case of workpiece bores in which the machining area is the bore, the tool is thus inserted into the bore with the honed linings drawn in, then the expansion to the finished size is carried out and the working stroke is then carried out in the form of a return stroke.
  • the vast majority of the material removal takes place in this single working stroke, in the area of an expanding cutting zone, which can be followed by a finishing or calibration zone, which ensures the final dimension.
  • This calibration zone can be quite short.
  • the invention can also be used for honing operations other than drilling operations, for example for external honing.
  • the method can also be advantageous for machining through bores because the guidance of the tool which is pulled in the working stroke in the bore is very good. In this case, the tool would at least be moved through the bore and advantageously out of it with the large part, ie with the calibration and cutting zone, then the widening would take place and the machining to the final quality would then be carried out in the return stroke.
  • a guide section downstream of the calibration zone in the working direction which would then lie towards the end of the tool, can be provided, but is particularly not necessary if the tool leaves the bore after the working stroke and does not return to it.
  • This post-lead zone can, if provided is, in the manner known from DE-B 24 60 997 connect continuously to the calibration zone in order to facilitate re-entry into the bore after the calibration zone has been moved out of it. During machining, the tool with the calibration zone is pulled all the way over the machining area.
  • the honing tool 11 shown in FIG. 1 has an essentially tubular tool body 12 with a bayonet mounting device 13 for a machine spindle 14 of a honing machine 15, indicated by dash-dotted lines.
  • the spindle is rotatably and displaceably mounted in the axial direction and contains an adjusting device 16 in the form of a Spindle 14 and relative to this axially displaceable expansion rod.
  • the tool body has from its lower end 17, extending in the longitudinal direction of the tool, parallel-surface slots 18 which are broken through in the region of the tool end to the central bore 19 of the tool body.
  • slots of which, for example, six are provided on the circumference, honing stones 20 are guided, which are provided at their lower ends adjacent to the tool end 17 with very wear-resistant honing pads 21. for example with diamond honing.
  • the honing stone extends upwards over a large length of the tool body and has an outwardly open recess 22 at its upper end, so that a hook-shaped head is formed which is suspended in a bolt 23 projecting through the slot and thus the honing stone 20 is articulated at its upper end.
  • the honing stones which are held together by a tubular spring 24 running around their circumference, can be turned on by an adjusting mechanism 25, i. be expanded.
  • This consists of a bolt-like adjusting body 26 with an adjusting cone 27 at its end and leads into the central bore 19.
  • a screw bolt 28 screwed into it and loaded by a return spring 29 creates the connection to the adjusting device 16.
  • the adjustment cone 27 acts on inclined adjustment surfaces 30 on the honing stones and can thus pivot the honing stones outwards about the hinge pin 13. It can be seen that the honing stones are not only radially expanded by the employment, but also pivoted obliquely by a small amount, so that they in their lower area are expanded more than in the upper.
  • the honing pad has a front (upper) guide section 32, which lies on a circle of smaller circumference, a subsequent, widening towards the tool end 17, i.e. has a bevelled cutting zone 33 and a subsequent finishing or calibration zone 34.
  • the sections or zones 32, 34 can be essentially cylindrical. They can be relatively short, depending on the use of the tool, and the front guide section 32 can possibly. are completely absent or consist of a section of slightly less taper than the cutting zone 33. The slope of the sections changes with the expansion. Since the wear of the honing linings 21 is usually extremely low, the conditions are very constant.
  • the tool according to FIG. 1 is particularly suitable for machining blind holes 40.
  • This bore has a recess 37 near its base 36.
  • the method according to the invention works as follows: The tool according to FIG. 1 is inserted into the bore with the adjusting mechanism withdrawn. In this case, the diameter covered by the honing linings is less than the diameter of the bore 40 in the workpiece 38 indicated by dashed lines on one half of the drawing. The retraction can take place at an increased lifting speed, since no machining takes place when retracting.
  • the honing pads 21 are set to a fixed value.
  • the tool is adjusted by axially downward displacement of the adjusting device 16 and the adjusting mechanism 25 and the effect of the adjusting cone 27 on the adjusting surfaces 30 in that the honing stones 20 are pressed outwards in their lower region while pivoting about the bolts 23 .
  • this setting is carried out practically before the start of machining, ie before the working stroke, ie the return stroke in the direction of arrow 39. begins.
  • the position of the tool remains essentially unchanged during the working stroke.
  • the peripheral speed of the honing pads is in the range of normal cutting speeds for honing, for example in the range of 20 to 30 m / min. However, the lifting speed is considerably lower and is approximately one tenth to one thirtieth of the peripheral speed.
  • Zones 32, 33, 34 of honing coating 21 pass through the bore in succession in a single stroke and are processed simultaneously, but in succession in the axial direction from start to finish.
  • the main cutting work is carried out in the area of the oblique cutting zone 33, while the calibration zone 34 creates the calibration to the exact finished dimension and the desired surface quality.
  • the honing pads with the three successive zones would have to be very short, which could result in the cutting and calibration zones 33, 34 being too short despite the excellent self-guidance of the tool.
  • the lower edge 41 of the machining surface 40 of the bore 40 would be in a central region of the cutting zone or possibly. are even in the area of the calibration zone 34.
  • the final adjustment would then take place in such a way that the expansion to the final finished dimension has ended before the calibration zone 34 has swept over the edge 41.
  • the condition is met that the adjustment to the finished dimension and the blocking of this dimension is carried out by the adjusting mechanism before the tool with the calibration zone 34, which is decisive for the finished dimension, is completely moved into the machining surface 40 in the working direction 39.
  • This leveling stroke can be important, for example, in order to create certain surface properties, for example for cross grinding on the surface, ie a surface with intersecting machining marks.
  • a stop 44 in the form of an adjusting screw is also indicated, with which the downward movement of the adjusting mechanism can be blocked. It could be adjusted according to the finished size and ensures that regardless of the exact setting of the adjusting device in the honing machine, the widening of the honing pads takes place exactly to the finished size. An adjustment can then be made there depending on wear, but this is usually only necessary after several hundred workpieces. Such a readjustable finished dimension stop could, however, also be provided in the honing machine or the spindle and, if necessary, could be automatically readjusted step by step.
  • FIG. 2 The basic structure of the tool shown in FIG. 2 corresponds to that of FIG. 1, to the description of which reference is made.
  • the same reference numerals designate the same or comparable parts.
  • the honing stones 20a are not pivotable in this tool, but are guided in a radially displaceable manner and are supported, each with two spacing surfaces 30 arranged at a distance from one another, on axially successively arranged cones 27a, which are provided on two positioning bodies 26a likewise arranged one behind the other. These are connected to one another by a connecting bolt 50 connected and, if necessary, adjustable in relation to each other, so that the axis parallelism of the honing stones can be adjusted.
  • the honing stones 20 are guided in slots 18 and are resiliently loaded inwards with upper and lower hose springs 24.
  • the receptacle 13 and the rest of the adjustment mechanism 25 are comparable to FIG. 1.
  • a guide bar 51 is fixedly arranged on the tool body 12a.
  • the guide coating 52 of the guide bar 51 has approximately the same length as the honing coating 21 of the honing bar 20a.
  • the guide coating 52 which can also be referred to as armor coating or wear protection coating, consists, like the honing coating 21, of particles of great hardness and wear resistance, for example diamond particles or similar materials, which e.g. are galvanically bound.
  • the grain size is much smaller here, so that there is no significant cutting effect and, accordingly, no wear on the coating.
  • the adjustable honing stone 20a takes over the cutting work in the area of the cutting zone 33 and the calibration zone 34 is formed by flattening this stone.
  • the bevel of the cutting zone 33 can either be formed by appropriate profiling of the honing coating on the bar or by the inclined position of the bar, which results automatically in FIG. 1 and in FIG. 2 by mutual adjustment the adjusting body 26a can be achieved.
  • the calibration zone 34 would be designed as a rear bevel, which in turn results in an essentially cylindrical contour when the honing stone is inclined. Since this also grinds itself in again during operation, the readjustment for wear could also be carried out by mutual adjustment of the two adjusting bodies 26, 26a.
  • the contours 31, 53 indicated in FIGS. 1 and 2 are idealized. In practice, there are rounded transitions especially if you consider that the diameter differences shown in the drawing are exaggerated in practice in the range of hundreds and thousandths of a millimeter. Also in Fig.
  • a rear guide zone could be provided, which connects essentially continuously to the calibration zone 34 and possibly leads back to the level of the guide pad 52, which then with its wear protection pad for the rear guide a possible reintroduction of the honing tool.
  • FIG. 2 The honing process to be carried out with FIG. 2 is the same as that described with reference to FIG. 1 with the difference that the guiding tasks are partially taken over by the guide strips 51. It should be noted, however, that this tool, like the one shown in FIG. 1, is also suitable for through holes, the tool preferably being moved through the hole so far that the lower end of the machining area is in the area of Guide zone 32 is located and then the processing takes place in the return stroke after the employment.
  • FIG. 4 shows a honing tool which corresponds to that of FIG. 1 except for the changes described below.
  • the honing stones arranged pivotably in slots 18 of the tool body 12 form two groups, namely honing stones 20b with a honing coating 21, which extends longer upward from the tool end 17 than a honing coating 61 of short-stroke honing stones 60, each alternating with the honing stones 20b on the tool body are arranged. Except for the other type of honing pads, the honing stones 20b and 60 correspond.
  • the short-stroke honing pad 61 is considerably shorter and, in the state adjusted to the finished size, has an essentially cylindrical or slightly widening shape, while the honing pad 21 of the honing stones 20b can be profiled according to FIG. 1.
  • a pronounced front guide zone 32 is missing, which is possible in many applications due to the good self-centering of the tool drawn during the working stroke.
  • the adjusting body 26b is a cylindrical body in which the adjusting bevels 27b, 27c in the form of axially extending grooves inclined groove base are incorporated.
  • Such designs of adjusting bodies are described in principle in DE-OS 24 50 686 and 25 06 242, to which reference is made here.
  • the inclined surfaces 27c, 27d, for the two different groups of honing stones 20b, 60 each run in the same direction, so that when the adjusting body 26b is moved axially downward, both groups of stones are set, but in accordance with the shape of the bevels at the beginning of the expansion one after the other.
  • the inclined surface 27b is offset in that it begins in its near-end region with an incline-free section, then has a steeper incline and finally changes to the same incline that the inclined surface 27c has over the entire length.
  • the tool 11c is inserted into a blind hole, and only the group of short-stroke honing stones 60 is started by moving the adjusting body 26b downward.
  • This is shown in the schematically indicated profile A.
  • the honing pads 21 of the groin group 20b do not come into engagement.
  • the short-stroke honing pads 61 have approximately the length of the calibration zone 34. With these short-stroke honing bars, a short-stroke honing movement is carried out in several strokes in the area of the bottom of the blind hole. This serves to sufficiently process sections of the machining area that are very close to the bottom of the bore, which would not be possible due to the lack of space during the actual working stroke.
  • a measuring device can be connected to the tool, for example a pneumatic measuring device 68 with a measuring nozzle 65 in the tool body.
  • the adjusting body 26b which is axially advanced in this part of the machining in accordance with the machining progress, has already advanced so far that the honing pads 21 have already been adjusted by moving the adjusting surfaces 30b out of the incline-free area over the thicker one Hike into the main setting area 66.
  • the honing pads 21 and 61 lie on a common circumferential line in the calibration zone 34, so they work synchronously.
  • the two honing stone groups can also be employed in other ways.
  • each group also works for itself, in which case the short-stroke honing bars would not be engaged during the main machining.
  • the honing pads 21, 61 can always grind in in the same way during the main working stroke carried out jointly, so that reproducible conditions are always present. In the case of different wear for both tool groups, a corresponding adjustment between the two groups could be provided.
  • the upstream short-stroke honing can also be carried out with the honing stones 20b alone, in which case the calibration zone is effective during short-stroke honing and replaces special short-stroke honing pads.
  • Other adjustment devices for example the adjustment described in DE-PS 25 06 243 by means of a rotatable adjustment body, can also be provided.
  • the calibration zone 44 which is important for good dimensional stability, has a larger proportion of the grinding surface on the circumference than the other zones. This could also be provided for tools with only one group of honing pads by making the grinding pads wider in the area of the calibration zone. This is particularly advantageous for workpieces that come close to the bottom or shoulder of a bore with correspondingly very short calibration zones.
  • the invention has been described above with the aid of strip tools. It can also be carried out with tools with a self-expandable tool body.
  • FIG. 4 also shows, in a schematic form, that of the honing machine 15 assigned measuring device 68, which ends the short stroke honing when the finished dimension is reached by blocking the adjusting device 16 and switching the spindle lifting device 69, both of which are shown schematically as hydraulic cylinders, from the oscillating short stroke to the working stroke in the direction 39.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (16)

  1. Procédé pour l'usinage par honing de pièces comprenant une zone d'usinage par honing limitée axialement, et en particulier de perçages en trous borgnes, de perçages comprenant des nervures intérieures, etc.,
    - dans lequel on exécute l'usinage au moyen d'un outil de honing comprenant un revêtement de honing qui peut être élargi et qui comprend une zone de coupe s'élargissant (33) et une zone de calibrage (34), dans lequel on fait passer l'outil (11, 11b) à travers la zone d'usinage (35) selon une course d'avance et de pénétration, le revêtement de honing étant rétracté et sans qu'il y ait contact d'usinage,
    - dans lequel on cale a cet endroit le revêtement de honing (21) en correspondance avec la dimension finale avant le début de la course de travail principale (39), et on conserve ce calage à une dimension fixe en le laissant inchangé jusqu'à la fin de l'usinage, et :
    - dans lequel l'outil entraîné en rotation exécute une seule course de travail principale (39) dans laquelle les zones de coupe et de calibrage (33, 34) sont déplacées à travers la totalité de la zone d'usinage selon un déplacement axial de retour de l'outil, avec un contact d'usinage et un enlèvement de matière sur toute la longueur de la zone d'usinage (35).
  2. Procédé selon la revendication 1, caractérisé par le fait que l'on déplace l'outil (11, 11b) plus lentement dans le sens axial lors de la course de travail principale (39) que lors de la pénétration et/ou que, du moins lors d'une course d'égalisation sans enlèvement de matière important, on le déplace une deuxième fois à travers la zone d'usinage (35), le revêtement de honing (21) étant calé à la dimension fixe, et que, le cas échéant, on introduit à nouveau le revêtement de honing à la fin de l'usinage.
  3. Procédé selon l'une des revendications précédentes, caractérisé par le fait que l'outil (11, 11b) est guidé sur la pièce lors de la course de pénétration par des revêtements de guidage non calables.
  4. Procédé selon l'une des revendications précédentes, caractérisé par le fait qu'avant le début de la course de travail principale (39) et le calage à la dimension fixe, l'outil (11, 11b) exécute, à l'extrémité de la zone d'usinage (35) qui est éloignée de la machine, quelques courses de courte amplitude lors desquelles l'outil ne balaye que des parties de la zone d'usinage et qui sont exécutées de préférence par un autre revêtement de honing que celui de la course de travail principale.
  5. Procédé selon la revendication 4, caractérisé par le fait que les courses de courte amplitude ont lieu avec un calage adapté à la progression de l'usinage, le déclenchement de la course de travail principale (39) qui a lieu avec le calage à la dimension fixe étant réalisé ensuite, en étant le cas échéant commandé par la dimension.
  6. Procédé selon l'une des revendications précédentes, caractérisé par le fait que l'élargissement de la zone de calibrage (34) est réalisé à la dimension finale dans la zone d'usinage (35).
  7. Outil de honing, en particulier pour la mise en oeuvre du procédé selon l'une des revendications précédentes,
    - comprenant un revêtement de honing (21), lequel comporte, du moins à l'état calé, une zone de coupe (33) qui s'élargit vers l'extrémité (17) de l'outil et à l'extrémité élargie de laquelle se raccorde une zone de calibrage (34),
    - comprenant un mécanisme d'élargissement (25) muni de moyens de calage (27, 30) qui déplacent le revêtement de honing (21) entre une position de pénétration pour la traversée de la zone d'usinage (35) sans contact d'usinage et une position de calage à dimension fixe dans laquelle la zone de calibrage (34) est réglée à la dimension finale, et qui sont conformés de manière à pouvoir coopérer avec des moyens de blocage (44) qui bloquent le calage à dimension fixe destiné à une course de travail principale (39).
  8. Outil de honing selon la revendication 7, caractérisé par le fait que l'outil comporte des revêtements de guidage (52) réalisés sous la forme de baguettes (51) qui sont constituées par un matériau de protection contre l'usure, qui s'étendent dans la direction de l'axe de l'outil et qui sont disposées entre les revêtements de honing (21).
  9. Outil de honing selon la revendication 7 ou 8, caractérisé par le fait qu'il comporte deux groupes de revêtement de honing (20b, 60) qui peuvent être calés séparément l'un de l'autre, l'un (60) étant un groupe de honing à course de faible amplitude pouvant être calé afin d'exécuter des courses de honing de faible amplitude, et l'autre groupe (20b) étant muni des zones de coupe et de calibrage (33, 34), cependant que les revêtements de honing à course de faible amplitude (61) destinés à la réalisation de la course de travail peuvent être de préférence bloqués en contact de coupe en même temps que l'autre groupe (20b), et qu'ils sont de préférence disposés dans la région de la zone de calibrage (34).
  10. Outil de honing selon l'une des revendications 7 à 9, caractérisé par le fait que l'élargissement de la zone de coupe (33) peut être modifié lors du calage des revêtements de honing (21).
  11. Outil de honing selon l'une des revendications 7 à 10, caractérisé par le fait qu'il est réalisé sous la forme d'un outil à baguettes, et par le fait que le revêtement de honing (21) est profilé en correspondance avec les zones de coupe et de calibrage (33, 34), ainsi que, le cas échéant, avec une section de guidage disposée à l'avant de la zone de coupe (33) dans la direction de travail (39) et avec une zone de guidage disposée à l'arrière de la zone de calibrage (33), cependant que les baguettes de honing (20) sont de préférence montées pivotantes sur le corps (12) de l'outil à la manière d'un levier à un bras, et que l'axe de pivotement est placé de préférence à l'extrémité de la baguette de honing (20) qui est située du côté de l'entraînement.
  12. Outil de honing selon l'une des revendications 7 à 11, caractérisé par le fait que le mécanisme de calage (25) contient une butée (44) qui peut être réglée au préalable en correspondance avec la dimension finale.
  13. Machine de honing, en particulier pour la mise en oeuvre du procédé selon l'une des revendications 1 à 6,
    - comprenant une broche (14) qui reçoit un outil de honing (11, 11b), qui peut être mue en rotation par un entraînement en rotation et qui peut être aussi déplacée axialement avec l'outil de honing (11, 11b) par un entraînement de course (69) à travers une zone d'usinage (35) d'une pièce (38),
    - comprenant un dispositif de calage (16) qui est reçu par la broche, du moins partiellement, et qui déplace le revêtement de honing entre une position de pénétration pour la traversée de la zone d'usinage (35) sans contact d'usinage et une position de calage à dimension fixe dans laquelle la zone de calibrage (34) est réglée à la dimension finale,
    - comprenant des moyens de blocage (68) pour bloquer le dispositif de calage (16) pendant une course de retour de la broche (14) qui constitue la course de travail principale, l'entraînement de course (69) étant conformé de telle manière que la course de retour qui constitue la course de travail principale présente une vitesse de course axiale plus faible que celle d'une course d'avance et de pénétration.
  14. Machine de honing selon la revendication 13, caractérisée par le fait que le dispositif de calage (16) est conformé en vue du calage de deux groupes différents de revêtements de honing (21, 61).
  15. Machine de honing selon la revendication 13 ou 14, caractérisée par le fait que la vitesse de course axiale de la course de travail est comprise entre un dixième et un trentième environ de la vitesse circonférentielle de l'outil de honing (11, 11b).
  16. Machine de honing selon l'une des revendications 13 à 15, caractérisée par le fait que le dispositif de blocage (68) est constitué par un dispositif de mesure (65, 68) qui réalise des mesures pendant l'usinage, et qu'il commande, le cas échéant, un déclenchement de l'entraînement de course (69) destiné à la réalisation de la course de travail (39).
EP86114375A 1985-10-17 1986-10-17 Méthode, machine et outil pour le rodage de pièces Expired - Lifetime EP0219825B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3537009 1985-10-17
DE19853537009 DE3537009A1 (de) 1985-10-17 1985-10-17 Verfahren, honmaschine und honwerkzeug zur honbearbeitung von werkstuecken

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EP0219825A2 EP0219825A2 (fr) 1987-04-29
EP0219825A3 EP0219825A3 (en) 1987-12-16
EP0219825B1 true EP0219825B1 (fr) 1991-05-15

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EP86114375A Expired - Lifetime EP0219825B1 (fr) 1985-10-17 1986-10-17 Méthode, machine et outil pour le rodage de pièces

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DE (2) DE3537009A1 (fr)

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DE4215988A1 (de) * 1992-05-12 1993-11-18 Emil Pleiger Gmbh Verfahren und Honwerkzeug zum Herstellen konischer Bohrungen

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Publication number Priority date Publication date Assignee Title
WO1992018287A1 (fr) * 1991-04-16 1992-10-29 Maschinenfabrik Gehring Gmbh & Co. Outil a honer pour l'usinage d'alesages
DE4204585C2 (de) * 1992-02-15 1995-08-10 Nagel Masch Werkzeug Honwerkzeug
FR2713123B1 (fr) * 1993-11-30 1996-01-26 Peugeot Procédé de rodage de la surface d'une pièce et rodoir pour la mise en Óoeuvre de ce procédé.
DE19542892C2 (de) * 1995-11-17 2000-08-10 Nagel Masch Werkzeug Verfahren und Vorrichtung zum Honen von Kolbenlaufbahnen
DE19601158C1 (de) * 1996-01-15 1997-06-26 Daimler Benz Ag Gehonte Zylinderbohrung eines Hubkolben-Verbrennungsmotors und Verfahren zu ihrer Herstellung
DE10303215B4 (de) * 2003-01-23 2016-02-04 Walter Hunger Verfahren und Honmaschine zum Innenhonen von Werkstücken
DE10347256A1 (de) * 2003-10-08 2005-05-12 Volkswagen Ag Honwerkzeug

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US2581601A (en) * 1947-05-21 1952-01-08 Micromatic Hone Corp Honing tool
FR1451908A (fr) * 1965-11-02 1966-01-07 Micromatic Hone Corp Procédé et dispositif pour la rectification de dégrossissage et de finissage
DE2450686C3 (de) * 1974-10-25 1979-07-05 Nagel Maschinen- Und Werkzeugfabrik Gmbh, 7440 Nuertingen Honwerkzeug
DE2460997C3 (de) * 1974-12-21 1984-01-26 Nagel Maschinen- und Werkzeugfabrik GmbH, 7440 Nürtingen Honwerkzeug zur Bearbeitung zylindrischer Werkstückbohrungen
DE2506243C3 (de) * 1975-02-14 1979-08-23 Nagel Maschinen- Und Werkzeugfabrik Gmbh, 7440 Nuertingen Honwerkzeug für Werkstückbohrungen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4215988A1 (de) * 1992-05-12 1993-11-18 Emil Pleiger Gmbh Verfahren und Honwerkzeug zum Herstellen konischer Bohrungen

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EP0219825A2 (fr) 1987-04-29
DE3679276D1 (de) 1991-06-20
EP0219825A3 (en) 1987-12-16
DE3537009A1 (de) 1987-04-23

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