WO1996007504A1 - Verfahren zur herstellung eines mehrschneiden-werkzeuges - Google Patents
Verfahren zur herstellung eines mehrschneiden-werkzeuges Download PDFInfo
- Publication number
- WO1996007504A1 WO1996007504A1 PCT/DE1995/001006 DE9501006W WO9607504A1 WO 1996007504 A1 WO1996007504 A1 WO 1996007504A1 DE 9501006 W DE9501006 W DE 9501006W WO 9607504 A1 WO9607504 A1 WO 9607504A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- profile
- section
- drill
- produced
- cutting tool
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 229910001315 Tool steel Inorganic materials 0.000 claims abstract description 3
- 238000001192 hot extrusion Methods 0.000 claims abstract description 3
- 238000005520 cutting process Methods 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims description 3
- 210000000078 claw Anatomy 0.000 claims 1
- 239000000463 material Substances 0.000 description 12
- 238000005553 drilling Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/32—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
- B21C23/147—Making drill blanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/10—Making helical bodies or bodies having parts of helical shape twist-drills; screw-taps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K5/00—Making tools or tool parts, e.g. pliers
- B21K5/02—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K5/00—Making tools or tool parts, e.g. pliers
- B21K5/02—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes
- B21K5/04—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes twisting-tools, e.g. drills, reamers
Definitions
- the invention relates to a method for producing a multi-cutting tool and the manufactured multi-cutting tool itself.
- Multi-edge tools such as Drills are nowadays made with a lot of material and time.
- a drilling tool for drilling into masonry in order to reduce the amount of material required in the manufacture of drilling tools, a drilling tool for drilling into masonry, as described in EP 0 361 189 A1, consists of a head, a shaft with a discharge screw surface and a central one Reinforcement in the tool axis and from fastening pins have been developed.
- the shaft with the discharge screw surface is formed by a twisted flat rod, which has a reinforcement in the axis of the drilling tool, the transverse dimension of which is two to five times the thickness of the flat rod.
- the object of the invention in the aforementioned European patent is to provide drilling tools which improve the quality of the boreholes primarily by virtue of their higher strength and longer service life. In addition, the tools are cheaper due to the lower material costs. However, it is not known from this document to minimize the cost of materials and thus the costs for producing a multi-cutting tool, for example by using a flat profile as the starting material in order to use the drilling tool in the machining of steel and other metals.
- the object of the invention is to provide a method for producing a multi-cutting tool, with which it is possible to produce multi-cutting tools with minimal material expenditure and minimal expenditure.
- the drills can be made entirely from a high-alloy HSS steel, such as, for example, material number 1.3343 or similar. Since the method according to the invention does not require a drill to be made from solid material, but rather "flat material” is used, a high material saving of approximately 50 to 75% is achieved.
- the method developed guarantees that the cutting geometry and the spiral pitch can be manufactured with low tolerance.
- Solid profiles or profiles with at least one hole, preferably an arbitrarily shaped central passage can be used as the starting material. let be used.
- the passage can be used as a coolant or lubricant supply or for receiving a tool shank.
- the cutting tools produced are e.g. Drills, milling cutters, reamers, etc. in question.
- the use of the method according to the invention is particularly preferred for the production of drills with large diameters of 30 millimeters and more.
- a particular advantage of the method according to the invention is the very fast production of special cutting tools from freely selectable basic profiles.
- the tools can be quickly and easily regrind on form or multi-step drills.
- the process for producing a multi-cutting tool made of high-strength tool steel proceeds in the following steps: a profile, the cross section of which corresponds to the cross section of the multi-cutting tool to be produced, is produced by hot extrusion and then the profile is produced, in particular without cooling swirled to room temperature.
- the side cutting edges are machined to produce a longitudinal bevel after twisting and hardening. Accordingly, it is preferable to machine the tip of the tool even after the twisting.
- the profile is twisted with straightening rollers after the extrusion.
- the multi-cutting tool produced according to the invention can consist of a flat profile with a rectangular cross-section on the end piece of the shank, a clamping element being attached to the end piece for receiving the drill in a commercially available machine holder.
- a "universal clamping clamp” is completely independent of the respective systems in which the multi-cutting tool is to be used.
- the basis of such a clamping element is a floating and self-centering holder.
- the end piece that is to say the receptacle, is always a round neck, the shape is dependent on the respective extruded profile, which is twisted with the given pitch.
- the tools designed according to the invention do not have to be reduced or reduced to other cone systems, ie the tools designed according to the invention are approximately 50% shorter with the same drilling depth performance. This not only leads to considerable material savings, but also considerably increases the processing options of the machines used. Due to the open profile, the cutting edge can be machined with conventional grinding machines since there is no geometric collision. Tools can thus also be processed on site, so that special tools such as step tools can also be produced.
- the tools mentioned can be individually adapted to the machining criteria. It is possible at any time to equip the HSS profiles with high-speed cutting materials, e.g. with hard metal, ceramics and others.
- the steel alloy of the profiles also allows any kind of hard material coating.
- FIG. 1 shows a rolling and calibration unit
- FIG. 2 shows a swirl and calibration device
- FIG. 3 shows a cross section through a tool according to the invention with a central bore.
- the rolling and calibration unit according to the invention consists e.g. from two profile roller carriers 1, which can be identical and which are only offset by 180 °.
- the desired spiral pitch is set via the manual axis of rotation Z. For example, it is possible to increase the spiral pitch when turning to the right and to decrease it when turning to the left.
- Both roller carriers 1 are arranged on a linear axis X and can be adjusted separately.
- the axis of rotation Y is e.g. Servomotors driven and controlled synchronously.
- the speed of the servomotors used correlates with the exit speed of the extruded profile.
- Fig. 2 shows a swirl and calibration device, which consists of three units I, II, III. For small profiles with narrow slopes, e.g. even only two units can be used.
- the swirl and calibration device is attached directly to the outlet of the profile 2.
- the pressed profile 2 runs into the first unit I. Both roller units 3 are set to the desired pitch angle and the desired rolling depth. The driven rollers 3 pull the workpiece 2 through the unit I. At this unit I the twist is bent and pre-rolled. The same process happens in Unit II. Only the profile and the slope are stabilized here.
- Unit III is used to calibrate the dimensions and surface of the workpiece.
- the spiral profile rod 4 produced in this way runs into a roller conveyor 5.
- the roller conveyor 5 prevents the spiral profile rod 4 from bending.
- the length of the spiral profile rod thus created can be manufactured according to the rolling mill specifications.
- the workpiece is skillfully shaped when the material is hot, i.e. at approx. 700 ° C. However, it is also possible to initially generate only a straight profile and, after cooling to room temperature and subsequent heating, to twist the strand.
- the manufactured spiral profile rod 4 does not have to be further processed, but only, if desired, deflected to the correct length.
- FIG. 3 shows a cross section through a tool according to the invention with a central bore 6.
- the cutting edges 7 can be provided with hard metal or ceramic and, if they are made of hard metal or ceramic, they can be opened both by soldering and by clamping be brought. Such tools for wood and plastic processing are preferred.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Milling Processes (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8509085A JPH09506831A (ja) | 1994-09-06 | 1995-08-02 | マルチブレード工具の製法 |
US08/640,739 US5782145A (en) | 1994-09-06 | 1995-08-02 | Process for the fabrication of a multi-blade tool |
EP95926837A EP0730509A1 (de) | 1994-09-06 | 1995-08-02 | Verfahren zur herstellung eines mehrschneiden-werkzeuges |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4431756 | 1994-09-06 | ||
DEP4431756.5 | 1994-09-06 | ||
DE4443736A DE4443736A1 (de) | 1994-09-06 | 1994-12-08 | Verfahren zur Herstellung eines Mehrschneiden-Werkzeuges |
DEP4443736.6 | 1994-12-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996007504A1 true WO1996007504A1 (de) | 1996-03-14 |
Family
ID=25939884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1995/001006 WO1996007504A1 (de) | 1994-09-06 | 1995-08-02 | Verfahren zur herstellung eines mehrschneiden-werkzeuges |
Country Status (4)
Country | Link |
---|---|
US (1) | US5782145A (de) |
EP (1) | EP0730509A1 (de) |
JP (1) | JPH09506831A (de) |
WO (1) | WO1996007504A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE50304177D1 (de) * | 2002-02-28 | 2006-08-24 | Bosch Gmbh Robert | Verfahren zur Herstellung eines Bohrers oder Fräsers |
US20080213720A1 (en) * | 2003-05-13 | 2008-09-04 | Ultradent Products, Inc. | Endodontic instruments manufactured using chemical milling |
US7665212B2 (en) * | 2005-02-23 | 2010-02-23 | Ultradent Products, Inc. | Methods for manufacturing endodontic instruments |
US7743505B2 (en) | 2005-02-23 | 2010-06-29 | Ultradent Products, Inc. | Methods for manufacturing endodontic instruments from powdered metals |
DE102010041164B4 (de) * | 2010-09-22 | 2022-01-27 | Adolf Würth Gmbh & Co Kg | Verfahren zum Herstellen eines Bohrers |
CN103909387A (zh) * | 2014-04-14 | 2014-07-09 | 厦门艾瑞克斯铜业有限公司 | 异型铜排加工触片的生产方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1161863A (en) * | 1967-05-09 | 1969-08-20 | Rohde & Doerrenberg | Method of Manufacturing Twist Drills or Similar Tools, and Tools, especially Twist Drills Produced by Same. |
US3608400A (en) * | 1969-08-22 | 1971-09-28 | Aackersberg Mortensen | Method for producing a twist drill or a similar tool having one or more helical flutes or grooves and a tool produced by said method |
FR2260410A1 (de) * | 1974-02-11 | 1975-09-05 | Marwin Cutting Tools Ltd | |
EP0173675A1 (de) * | 1984-08-28 | 1986-03-05 | Vereinigte Edelstahlwerke Aktiengesellschaft (Vew) | Verfahren und Vorrichtung zur Herstellung von, insbesondere metallischen, Werkstücken, vorzugsweise aus Stahl |
DE3830590A1 (de) * | 1988-03-07 | 1989-09-21 | Yoshinobu Kobayashi | Verfahren zur herstellung von bohrern, stirnfraesern und anderen rotierenden schneidwerkzeugen |
EP0361189A1 (de) * | 1988-09-12 | 1990-04-04 | Narex Praha, Statni Podnik | Bohrwerkzeug mit schraubenförmigem Schaft |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US430792A (en) * | 1890-06-24 | Island | ||
US319027A (en) * | 1885-06-02 | Method of making twisted boring-tools | ||
US714890A (en) * | 1900-01-09 | 1902-12-02 | Josef Gieshoidt | Manufacture of spiral-shaped or helically-twisted bodies. |
US893162A (en) * | 1906-10-06 | 1908-07-14 | George E Hackett | Twist-drill. |
US972155A (en) * | 1908-08-18 | 1910-10-11 | Charles G Brown | Socket for twist-drills. |
US968472A (en) * | 1909-01-12 | 1910-08-23 | Martin Hardsocg | Drill and drill-shank. |
US2533227A (en) * | 1941-05-31 | 1950-12-12 | Harry W Delaney | Apparatus for the manufacture of twist drills |
US4769212A (en) * | 1985-03-29 | 1988-09-06 | Hitachi Metals, Ltd | Process for producing metallic sintered parts |
JPH02106210A (ja) * | 1988-10-14 | 1990-04-18 | Sumitomo Electric Ind Ltd | ねじれ刃多結晶ダイヤモンド工具及びその製造方法 |
AT400687B (de) * | 1989-12-04 | 1996-02-26 | Plansee Tizit Gmbh | Verfahren und strangpresswerkzeug zur herstellung eines rohlings mit innenliegenden bohrungen |
US5074025A (en) * | 1991-03-05 | 1991-12-24 | Jarvis Cutting Tools, Inc. | Threaded shank drill assembly |
-
1995
- 1995-08-02 EP EP95926837A patent/EP0730509A1/de not_active Ceased
- 1995-08-02 US US08/640,739 patent/US5782145A/en not_active Expired - Fee Related
- 1995-08-02 WO PCT/DE1995/001006 patent/WO1996007504A1/de not_active Application Discontinuation
- 1995-08-02 JP JP8509085A patent/JPH09506831A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1161863A (en) * | 1967-05-09 | 1969-08-20 | Rohde & Doerrenberg | Method of Manufacturing Twist Drills or Similar Tools, and Tools, especially Twist Drills Produced by Same. |
US3608400A (en) * | 1969-08-22 | 1971-09-28 | Aackersberg Mortensen | Method for producing a twist drill or a similar tool having one or more helical flutes or grooves and a tool produced by said method |
FR2260410A1 (de) * | 1974-02-11 | 1975-09-05 | Marwin Cutting Tools Ltd | |
EP0173675A1 (de) * | 1984-08-28 | 1986-03-05 | Vereinigte Edelstahlwerke Aktiengesellschaft (Vew) | Verfahren und Vorrichtung zur Herstellung von, insbesondere metallischen, Werkstücken, vorzugsweise aus Stahl |
DE3830590A1 (de) * | 1988-03-07 | 1989-09-21 | Yoshinobu Kobayashi | Verfahren zur herstellung von bohrern, stirnfraesern und anderen rotierenden schneidwerkzeugen |
EP0361189A1 (de) * | 1988-09-12 | 1990-04-04 | Narex Praha, Statni Podnik | Bohrwerkzeug mit schraubenförmigem Schaft |
Also Published As
Publication number | Publication date |
---|---|
JPH09506831A (ja) | 1997-07-08 |
EP0730509A1 (de) | 1996-09-11 |
US5782145A (en) | 1998-07-21 |
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