CN1802231B - Rotatable tool and a blank - Google Patents
Rotatable tool and a blank Download PDFInfo
- Publication number
- CN1802231B CN1802231B CN200480015625XA CN200480015625A CN1802231B CN 1802231 B CN1802231 B CN 1802231B CN 200480015625X A CN200480015625X A CN 200480015625XA CN 200480015625 A CN200480015625 A CN 200480015625A CN 1802231 B CN1802231 B CN 1802231B
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- CN
- China
- Prior art keywords
- cutter
- chip trough
- flushing groove
- shaft angle
- tool
- 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.)
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- 238000005520 cutting process Methods 0.000 claims abstract description 40
- 238000011010 flushing procedure Methods 0.000 claims abstract description 37
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000009991 scouring Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 23
- 239000000758 substrate Substances 0.000 description 20
- 239000000203 mixture Substances 0.000 description 18
- 241001074085 Scophthalmus aquosus Species 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000005553 drilling Methods 0.000 description 5
- 229910017052 cobalt Inorganic materials 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011799 hole material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0002—Drills with connected cutting heads, e.g. with non-exchangeable cutting heads; Drills with a single insert extending across the rotational axis and having at least two radially extending cutting edges in the working position
-
- 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
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
-
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
Abstract
The present invention relates to a tool as well as a blank for manufacturing of the tool (10). The tool (10) is performed in solid cemented carbide and comprises a shank (11) for mounting in a rotatable spindle and chip flutes (18). Lines of intersection between the chip flutes (18) and clearance surfaces (15) form cutting edges (19) at a cutting end (16) of the tool. The flush channels (14) extend through the entire tool in order to transfer flushing medium to the cutting end (16) of the tool. The flushing channels (14) have varying pitch.
Description
Technical field
The present invention relates to a kind of rotatable tool and base substrate according to the independent claims preamble.
Background technology
For example by known among the WO 98/28455: between drift and punch die with material powder, for example tungsten carbide (WC) extrudes with cobalt (Co), and then thereby material is carried out fusing of sintering cementing metal and bonding carbide, to be formed for the cutter material of chip removing machining.Described known technology has a plurality of shortcomings.The green compact (suppressing but unsintered material) that described powder produces dust and shaping can not stand any processing.And chip trough should be ground and this method needs time and energy.For example described by SE-B-9501687-9, by the carbide alloy that is blended in the carrier is carried out injection mo(u)lding, Bu Fen solution described problem.Aspect geometry, injection molding forming method has the very high free degree, but die cost is too high.
For example by US 4,779,440 and WO/0074870 be known as auger and make base substrate.The base substrate of being extruded has chip trough, and described chip trough has consistent slot pitch along the periphery of base substrate.
Summary of the invention
Purpose of the present invention is, a kind of rotatable tool and base substrate are provided, and its flushing groove has the slot pitch of variation.
Another object of the present invention is, a kind of cutter is provided, and it has the flushing groove that slot pitch changes.
A further object of the present invention is, a kind of cutter with excellent durability is provided.
By for example having realized these and other objects at a kind of rotatable tool defined in the appended claims and base substrate with reference to the accompanying drawings.
Brief Description Of Drawings
Figure 1A illustrates the side view according to brill of the present invention;
Figure 1B, 1C and 1D illustrate the radial section according to line B-B, C-C, D-D respectively;
Fig. 1 E illustrates the stereogram of brill;
Fig. 1 F illustrates the stereogram according to base substrate of the present invention;
Fig. 2 A illustrates the front view that is used to produce the device of elongated green compact according to of the present invention;
Fig. 2 B illustrates the cross section of this device according to the line II B-II B among Fig. 2 A;
Fig. 2 C illustrates the cross section of this device according to the line II C-II C among Fig. 2 A;
Fig. 3 illustrates the stereogram of elongated green compact;
Fig. 4 A illustrates the front view that is used to produce the option means of elongated green compact according to of the present invention;
Fig. 4 B illustrates the cross section of this device according to the line II B-II B among Fig. 4 A;
Fig. 4 C illustrates the cutting end view of this device;
Fig. 4 D illustrates the cross section of this device according to the line II D-II D among Fig. 4 A;
Fig. 5 A illustrates the front view that is used to produce another option means of elongated green compact according to of the present invention;
Fig. 5 B illustrates the cross section of this device according to the line II B-IIB among Fig. 5 A;
Fig. 5 C illustrates the cutting end view of this device;
Fig. 5 D illustrates the cross section of this device according to the line II D-II D among Fig. 5 A;
Fig. 6 A illustrates the front view that is used to produce another option means of elongated green compact according to of the present invention;
Fig. 6 B illustrates the cross section of this device according to the line II B-II B among Fig. 6 A;
Fig. 6 C illustrates the cutting end view of this device;
Fig. 6 D illustrates the cross section of this device according to the line II D-II D among Fig. 6 A.
The specific embodiment
The cutting tool according to the present invention embodiment that is shown in Figure 1A-1E is so-called auger.Bore 10 and for example extrude the carbide alloy manufacturing by the solid rigid material, and have chip curl groove 18 and described chip trough can be by whole or by an one part extension.This drilling tool is useful on the handle 11 that is fixed on the unshowned rotating shaft.This drilling tool has two top clearance face 15.All surfaces and relevant sword all utilize identical materials promptly to be preferably and extrude the carbide alloy manufacturing.At the place, cutting end of boring, the intersection between chip trough 18 and the clearance face 15 preferably forms main cutting edge 19 via strengthening inclined-plane 12.The total length that bores is set to 3 to 10 times of its diameter.Two flushing grooves 14 extend through whole brill so that carry scouring media from the top that axial rotary bores.Can radial groove be set at pommel stops up so that be particularly useful for preventing the hole.Flushing groove 14 and chip trough 18 all have the slot pitch of variation, preferably have little shaft angle at the place, cutting end, and slot pitch increase continuous backward or progressively.For example the variation of the slot pitch of two flushing grooves 14 is preferably essentially identical.For example the variation of the slot pitch of two chip troughs 18 is preferably essentially identical.The variation of flushing slot pitch groove 14 and chip trough 18 is preferably essentially identical.Described slot pitch make about the centre line C L of boring the shaft angle α 1 at 16 places, cutting end of boring greater than along bore axially at the shaft angle α 2 of chip trough center.For example, the axial inner ends 17 from its cutting end 16 to chip trough, the variation of shaft angle can be between 5 and 20 °.Flushing groove 14 apart from centre line C L and chip trough 18 with substantially invariable radial distance setting, thereby make bore durable as much as possible.Can utilize this brill of a kind of manufacturing at least four kinds of distinct methods.Unit " mm/ commentaries on classics " limits slot pitch.Slot pitch p is inversely proportional to about shaft angle α according to following formula: [=p, wherein D is the diameter (millimeter) of brill to D* π/tan α, and p is slot pitch (millimeter).For example, having D in radial section is that 10mm and shaft angle α are 30 ° brill, its slot pitch 10*3.14/tan (30 °)=54.4mm.
The shaft angle of the axial front portion of boring is positioned at 20 °-45 ° scope, and the shaft angle at the rear portion of boring is between 5 ° and 25 °.In the embodiment shown, this is drilled in 16 places, cutting end and has 31 ° and have 16 ° shaft angle in axial inner ends.By shaft angle being set, when drilling,, and utilize along chip trough and axially realized effective chip flow to the less shaft angle at place, rear section by the bigger anterior angle in 16 places has realized low cutting force in the end according to described geometry.And, mean that in the slot pitch of boring flushing groove 14 variations in 10 outlet of groove can be arranged on and make them provide the position of optimum efficiency for the drilling operation, and can not influence the zone of for example chip trough being carried out grinding.
Fig. 1 F illustrates the base substrate that is used for for example above-mentioned auger 10 of tool for chip removing machining or cutting end milling cutter.This cylindrical base substrate 110 is made by firm carbide alloy, and comprises space 114A, 114B so that form flushing groove 14 in brill.Space 114 extends through whole base substrate.As mentioned above, space 114 has the slot pitch of variation.The slot pitch in space 114 make about the center line CCL of base substrate at one end the shaft angle α 11 at 116 places greater than the shaft angle α 21 at the other end 117 places of base substrate.To the other end 117, the variation of shaft angle is between 5 and 20 ° from an end 116.The shaft angle of the axial front portion of brill 10 is positioned at 20 °-45 ° scope, and the shaft angle at the rear portion of base substrate is between 5 ° and 25 °.In Fig. 1 F, imaginary plane P is shown, the rotary speed of green compact increases from here, and the shaft angle in each space also increases thus.Space 114A, 114B are arranged on substantially invariable radial distance apart from center line CCL.
In Fig. 2 A-2C, the embodiment of the device 20 that is used to produce the elongated cylindrical green compact is shown. herein term " green compact " refer to extrude but unsintered body, and term " base substrate " refers to the body of sintering. should note, term " living (green) " does not relate to the color of body, and relating to extrude body. device 20 comprises steel rectangular case 21, it for example is used for by bolting to the unshowned machine of extruding. and housing 21 has two and is used for fixing the bolt 22 in the machine and has rear surface 23. these housings that are used to seal described machine and have the center and connect groove 24, extruding mixture by this groove. groove 24 is extended so that be formed for the space 25 of feed worm end about rear surface 23,26, Fig. 3. the restriction 27. that this groove 24 is transited into reduced in circular nozzle 28 utilize high-abrasive material for example carbide alloy make jet pipe 28. then groove 24 continue via cylindrical interior, the hole 30 of centralized positioning enters circular mode pipe 29, this mould pipe is provided with and is attached thereto near jet pipe 28. and mould pipe 29 is basic for columniform, and the flange 31 that comprises radially outer, this flange are used for matching with lid 36 spring bearing 32. the outer end of mould pipe 29 is provided with rigidly connected whirligig of mould pipe or pinion 50. described pinions and is used for being operated by unshowned gear. this mould pipe can be rotated a limited number of revolution with pinion 50 thus. the main direction of feed of mixture is illustrated by F. shaft-like core 33 is recessed in the mould. described core be rectangle and contain two elongated rigid pins 35. and sell 35 and be used for outstandingly along direction of feed F from described core washing groove to form at green compact. groove 24 stops at the open pore that is positioned at mould pipe outer end. this device comprises rigid element 28 and rotatable portion 29. thus
Brill or end mill(ing) cutter are made with following method.For example polymer or plastics mix and are configured as granular or graininess will to have the hard metal powders of specific cobalt content and carrier.The content of binding agent is positioned at the scope of 1-10 with percentage by weight.Term " cobalt " should be understood that metal adhesive herein, and it optionally can or comprise other metal, for example nickel (Ni) with other metal replacement.Subsequently mixture is preheated to the temperature that is suitable for this mixture and be filled into the machine that is used for extruding.Utilize two feed worms then, under the specified temp of specific pressure and about 180 ℃ (this temperature is temperature required far below the fusion temperature of cobalt in the prior art) mixture is pressed in the groove 24, described restriction 27 will further be compressed mixture or material.Hot mixture arrives core 33 places and be the described core of semicircular opening process in each side substantially by two of forming around this core then.Along direction of feed F from described core backward, this mixture fuses once more and is cylindrical body, but described from here pin 35 forms the space in body, and described space will constitute the flushing groove afterwards.Described pin is chosen as enough length, thereby so that makes the mixture cooling can avoid fusing.Pin 35 does not arrive rotating part 29.Mixture arrives space 30 and because the friction between mixture and the hole wall makes mixture rotate subsequently.Thus, obtain cylindrical green body, its groove has the slot pitch of variation.Sintering and grinding chip trough then make it have slot pitch with the essentially identical variation of situation of flushing groove.
Like this, when green compact are extruded, mixture is admitted in the device that comprises rigidity and rotatable portion. have flushing hole by at first making green compact be configured as, and in same device, reverse described green compact then, this has clear and definite advantage. and a very big advantage of this technology is, can be in same device, green compact are extruded to having flushing hole straight and distortion, this has just saved cost. yet another advantage of this technology is, realized being used to make the simple and practical scheme of distortion green compact. thus, avoided demand to heavy and expensive equipment, otherwise will need described equipment so that from outside clamping green compact and then with its distortion. the green compact of being finished are extruded shaping thus and acquisition is complete or bird caging, also can have the flushing hole that changes slot pitch. this Plastic Forming utilization comprises the instrument realization of rigidity and optional shape part. mixture supplied in the rigid element of described instrument, herein, it is compressed so that be configured as the green compact with flushing hole around fixing core. subsequently, mixture is further supplied in the rotatable portion of described instrument, driving this rotatable portion synchronous with the control system of machine. this rotatable portion has the mould pipe, the mould pipe forces this green compact distortion with the frictional force between the wall in the further compression of mixture and mixture and hole 30, the rotary speed of mould pipe influences the slot pitch of flushing hole thus, this means and can extrude green compact with the flushing hole that changes slot pitch. the great advantage of this technology is, by changing the rotary speed of mould pipe, can influence the slot pitch of flushing hole in very simple mode. in this technology, can realize the slot pitch that changes by the rotary speed that under controlled condition, changes the mould pipe. equally should be with corresponding slot pitch by the base substrate grinding is produced chip trough, make chip trough have the slot pitch of variation. with regard to regard to drilling in the certain material, the brill with chip trough that its slot pitch changes may be the product that is more preferably.
In Fig. 4 A-4D, an optional embodiment of device 20 ' is shown, this device is used to make the elongated green compact with outer grooves as shown in Figure 3.This device 20 ' at first is with the difference of device 20, device 20 ' comprises the part 42 of the setting that the end with pin 35 flushes, this part comprises two movable parts 40,41, and they are along radially giving prominence in the groove 24 that enters between jet pipe 28 and the mould pipe 29 so that suppress chip trough on green compact.Each movable part 40,41 comprises inner sphering end.This end symmetry is shaped and is arranged on the bar.Described bar extends in the hole in mid portion.Near the end, described bar is provided with shoulder.This shoulder is used for cooperating the flange in described hole, so that can be correct outstanding and entering in the space of mid portion.When extruding current green compact, extrude that material is fed in this device and at first core 33,35 of this situation by flushing hole is shaped.Subsequently, extrude material and be compressed, so that after described core place is separated, homogenized once more.Extrude material this moment through the part of chip trough Plastic Forming takes place in this device.Two cylindrical core or movable part 40,41 in this device with proper spacing for example 180 ° assemble, each described parts all has an end that is shaped according to desired chip trough profile.Sphering is preferably carried out in a described end.The bottom of described cylindrical core enters in this device with the chip trough degree of depth completely, and is connected to suitable control and operating equipment automatically, and this equipment is not shown, is positioned at described device outside.After reaching required chip trough length, described core is retracted, and extrude material and recover it in order to required circularity that drillstock is shaped.After forming chip trough, will extrude in the rotatable portion of the further press-in device of material, this part utilizes the feasible material of extruding of frictional force to twist and thus chip trough is twisted.Rotary speed can be determined the slot pitch that chip trough obtains.Also may be combined with chip trough straight and distortion in same base substrate simultaneously, this will produce better product.
In Fig. 5 A-5D, device 20 is shown " an optional embodiment, this device is used to make the elongated green compact with outer grooves as shown in Figure 3.This device 20 " at first be two movable parts or the jaw 40 ', 41 ' of part 42 ' with device 20 ' difference.Each jaw 40 ', 41 ' comprises the inner that is provided with cutting edge.The desired profile phase of the profile of cutting edge and chip trough together.Each jaw has the chip room of himself, and this chip room is extended from the center of cutting tip, leaves by jaw and from device.The profile of cutting edge and the motion of jaw make chip trough profile and the synchronous change of cutting depth in extruding material.If desired, also can form the cutting tip that makes that the chip trough profile does not change with cutting depth.This means that can extrude the chip trough degree of depth with variation and the green compact of profile, this will form improved products.And then, can obtain the best end of chip room, and use device 20 ' is not that such was the case with.At this moment, extruding material makes green compact have straight chip trough and flushing hole.In the final stage of this device, to extrude material and calibrated accurately and further be pressed in the rotatable mould pipe 29, this mould pipe twists chip trough and flushing hole to required slot pitch.
In Fig. 6 A-6D, device 20 ' is shown " an optional embodiment; this device is used to make the elongated green compact with outer grooves as shown in Figure 3. this device 20 ' " at first be part 42 with device 20 ' difference " and two movable parts or cutting tip 40 ", 41 ". each cutting tip 40 ", 41 " comprise the inner that is provided with the sword that is essential. make them can carry out on pivotally supported two cutting tips or more a plurality of being assemblied in proper spacing. the terminal of described axle is positioned at the upside of instrument and is connected to suitable control and automatic operating equipment. and the nose of cutting tip has desired chip trough profile with centre line C L 1 angle at 45 with respect to groove; and when extruding material through cutting tip; the processed and formation chip trough of its material. the chip trough institute material processed by instrument is left this device. and the downside of each cutting tip has the radius identical with green compact; thus make that this device forms tight seal when cutting tip turns round; do not exist as cutting tip. when cutting tip is so located; chip trough shaping processing stops and extruding the material recovery in order to the required circularity of shaping drillstock. make that extruding material processes in the condition of high temperature near the generation green compact, and when forming chip trough, material is processed rather than be out of shape, the two combines, and will produce better product.
When green compact when jaw leaves because peripheral temperature, it cools off fast, and green compact continue to stretch out, until chip trough part long enough.The time that the length of green compact continues by extruding is determined.The green compact of Gu Huaing can be cut or only for example fracture by manual then, make it have suitable length, and this length is in the 5-10 of its diameter scope doubly.
Then green compact are heated in independent heating furnace, thereby described carrier is evaporated, thereby and cementing metal fusing and bonding carbide, thereby base substrate formed.Then this base substrate is further processed, for example counter blade part, shank portion and clearance face are carried out grinding.
Utilize this method and device, can produce a kind of instrument, wherein all can realize the slot pitch that changes about flushing groove and chip trough.
Therefore the present invention relates to a kind of rotatable tool and base substrate, its flushing groove has the slot pitch of variation, thereby can make this cutter have good durability.
The present invention requires the priority of Swedish patent application Nos.0301828-0 and 0301617-7, and described patent application is incorporated in this with for referencial use.
The present invention is in no way limited to the foregoing description, but can freely change within the scope of the appended claims.Therefore the present invention is also applicable to the solid-end milling cutter.Cutter can be coated with for example Al
2O
3, coating such as TiN and/or TiCN.
Claims (8)
1. rotatable tool, this cutter is made by carbide alloy and is comprised the handle that is used for being installed to rotatable shaft, chip trough, locate the cutting edge that the intersection between this chip trough and the clearance face forms in the cutting end of cutter, with the flushing groove, this flushing groove runs through the extension of whole cutter so that scouring media is transported to the cutting end of cutter, it is characterized in that, each has the slot pitch of variation this flushing groove and this chip trough, and this flushing groove is identical with the slot pitch of this chip trough.
2. according to the cutter of claim 1, it is characterized in that each shaft angle of this flushing groove and this chip trough all reduces along the direction away from the Tool in Cutting end.
3. according to the cutter of claim 2, it is characterized in that the shaft angle of this flushing groove and this chip trough all reduces continuously along the direction away from the Tool in Cutting end.
4. according to the cutter of claim 2, it is characterized in that the shaft angle of this flushing groove and this chip trough all progressively reduces along the direction away from the Tool in Cutting end.
5. according to the cutter of claim 1, it is characterized in that, the slot pitch of this flushing groove is set like this, make and locate the shaft angle of formation in the cutting end greater than the shaft angle that axially forms in this flushing groove center along cutter about the center line (CL) of cutter.
6. according to the cutter of claim 5, it is characterized in that, the axial rearward end from the cutting end to the chip trough (17), the variation of the shaft angle of this flushing groove is between 5 ° and 20 °.
7. according to the cutter of claim 6, it is characterized in that this flushing groove is positioned at 20 °-45 ° scope at the shaft angle at place, the cutting end of cutter, and should flushing groove cutter shaft to the shaft angle at place, rear portion between 5 ° and 25 °.
8. according to the cutter of claim 1, it is characterized in that cutter is a kind of in auger and the end mill(ing) cutter.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0301617A SE526650C2 (en) | 2003-06-04 | 2003-06-04 | Manufacturing method for rotary tool e.g. helix drill, end mill, involves removing green body formed by solidification of mixture from machine and sintering green body to blank to allow grinding of blank after rotation of rotatable part |
| SE03016177 | 2003-06-04 | ||
| SE0301617-7 | 2003-06-04 | ||
| SE0301828A SE526937C2 (en) | 2003-06-16 | 2003-06-16 | Rotatable tool and material for tool provided with coil channels at different angles |
| SE03018280 | 2003-06-16 | ||
| SE0301828-0 | 2003-06-16 | ||
| PCT/SE2004/000857 WO2004108334A1 (en) | 2003-06-04 | 2004-06-02 | Rotatable tool and a blank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1802231A CN1802231A (en) | 2006-07-12 |
| CN1802231B true CN1802231B (en) | 2010-05-12 |
Family
ID=20291479
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800153317A Pending CN1798623A (en) | 2003-06-04 | 2004-05-28 | Rotatable tool and a blank |
| CN200480015625XA Active CN1802231B (en) | 2003-06-04 | 2004-06-02 | Rotatable tool and a blank |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800153317A Pending CN1798623A (en) | 2003-06-04 | 2004-05-28 | Rotatable tool and a blank |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN1798623A (en) |
| SE (1) | SE526650C2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2298491B1 (en) * | 2009-09-22 | 2017-06-28 | Firma Gühring oHG | Tool with coolant channels |
| EP2596876A1 (en) * | 2011-11-24 | 2013-05-29 | Sandvik Intellectual Property AB | Round tool blank and method and device for making the same |
| EP2853322A1 (en) * | 2013-09-30 | 2015-04-01 | Seco Tools AB | Press for making a tool green body having a helical flute, method for making a tool green body having a helical flute, and tool green body having a helical flute |
| DE102017212054B4 (en) | 2017-07-13 | 2019-02-21 | Kennametal Inc. | Method for producing a cutting head and cutting head |
| EP3488952B1 (en) * | 2017-11-24 | 2024-03-13 | Seco Tools Ab | A method for manufacturing a tool head |
| CN110103500B (en) * | 2019-04-28 | 2021-05-14 | 南京理工大学 | Ultrasonic-assisted indexable end mill blade one-way pressing device |
| CN112077370A (en) | 2019-06-13 | 2020-12-15 | 肯纳金属印度有限公司 | Indexable drill insert |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1302191A (en) * | 1961-09-29 | 1962-08-24 | Stalker Drill Works Ltd | Forest |
| DE2945635A1 (en) * | 1979-11-12 | 1981-05-21 | Rohde & Dörrenberg, 4000 Düsseldorf | Helically fluted drill contg. coolant ducts - has cutting bits at tip on seating faces at acute angle to helix direction near tip |
| US5230593A (en) * | 1987-12-14 | 1993-07-27 | Mitsubishi Kinzoku Kabushiki Kaisha | Twist drill |
| US5800101A (en) * | 1996-02-14 | 1998-09-01 | Sumitomo Electric Industries, Ltd. | Drill |
| CN1280896A (en) * | 1999-07-02 | 2001-01-24 | 塞科机床公司 | Tool used in chip removal processing |
-
2003
- 2003-06-04 SE SE0301617A patent/SE526650C2/en not_active IP Right Cessation
-
2004
- 2004-05-28 CN CNA2004800153317A patent/CN1798623A/en active Pending
- 2004-06-02 CN CN200480015625XA patent/CN1802231B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1302191A (en) * | 1961-09-29 | 1962-08-24 | Stalker Drill Works Ltd | Forest |
| DE2945635A1 (en) * | 1979-11-12 | 1981-05-21 | Rohde & Dörrenberg, 4000 Düsseldorf | Helically fluted drill contg. coolant ducts - has cutting bits at tip on seating faces at acute angle to helix direction near tip |
| US5230593A (en) * | 1987-12-14 | 1993-07-27 | Mitsubishi Kinzoku Kabushiki Kaisha | Twist drill |
| US5800101A (en) * | 1996-02-14 | 1998-09-01 | Sumitomo Electric Industries, Ltd. | Drill |
| CN1280896A (en) * | 1999-07-02 | 2001-01-24 | 塞科机床公司 | Tool used in chip removal processing |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-226810A 1999.08.24 |
Also Published As
| Publication number | Publication date |
|---|---|
| SE0301617D0 (en) | 2003-06-04 |
| SE0301617L (en) | 2004-12-05 |
| CN1802231A (en) | 2006-07-12 |
| SE526650C2 (en) | 2005-10-18 |
| CN1798623A (en) | 2006-07-05 |
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