SE512752C2 - Ways to make stick cutters - Google Patents

Ways to make stick cutters

Info

Publication number
SE512752C2
SE512752C2 SE9702297A SE9702297A SE512752C2 SE 512752 C2 SE512752 C2 SE 512752C2 SE 9702297 A SE9702297 A SE 9702297A SE 9702297 A SE9702297 A SE 9702297A SE 512752 C2 SE512752 C2 SE 512752C2
Authority
SE
Sweden
Prior art keywords
pin
cbn
pcd
superhard material
shaft
Prior art date
Application number
SE9702297A
Other languages
Swedish (sv)
Other versions
SE9702297L (en
SE9702297D0 (en
Inventor
Peter Littecke
Original Assignee
Sandvik Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sandvik Ab filed Critical Sandvik Ab
Priority to SE9702297A priority Critical patent/SE512752C2/en
Publication of SE9702297D0 publication Critical patent/SE9702297D0/en
Priority to KR19997011706A priority patent/KR20010013691A/en
Priority to CN98806156A priority patent/CN1260742A/en
Priority to EP98929975A priority patent/EP0988125A1/en
Priority to PCT/SE1998/001113 priority patent/WO1998056528A1/en
Priority to JP50229099A priority patent/JP2002504027A/en
Priority to CA002290023A priority patent/CA2290023A1/en
Priority to ZA985147A priority patent/ZA985147B/en
Publication of SE9702297L publication Critical patent/SE9702297L/en
Publication of SE512752C2 publication Critical patent/SE512752C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B23C5/1081—Shank-type cutters, i.e. with an integral shaft with permanently fixed cutting inserts 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • 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
    • B23P15/34—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2226/00—Materials of tools or workpieces not comprising a metal
    • B23C2226/12—Boron nitride
    • B23C2226/125—Boron nitride cubic [CBN]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2226/00—Materials of tools or workpieces not comprising a metal
    • B23C2226/31—Diamond
    • B23C2226/315—Diamond polycrystalline [PCD]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2240/00—Details of connections of tools or workpieces
    • B23C2240/08—Brazed connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Milling Processes (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Drilling Tools (AREA)

Abstract

The present invention relates to an endmill provided with cutting edges of cBN or PCD and consisting of a shank part and a part containing the cBN or PCD brazed to the shank. The latter part is in the form of a disc in which the superhard material is present in a groove in the envelope surface and extends from one end surface to the other. After brazing the disc to the shank, the body obtained is ground to an endmill with cutting edges formed of superhard material. In a preferred embodiment, the shank is provided with a tenon against which the part containing the superhard material is brazed. This minimises the risk of braze joint failure and provides an endmill with several cutting edges which can be achieved at a low cost.

Description

15 20 25 30 512 752 cirkelrund, fyrkantig, triangulär eller annat lämpligt tvärsnitt företrädesvis med ett centrumhàl. Pà denna stäng är en eller flera spår slipade i dess hela längd och parallellt med dess axel. Circular, square, triangular or other suitable cross-section, preferably with a center hole. On this rod, one or more grooves are ground along its entire length and parallel to its axis.

Spàret kan vara rakt men det kan även vara skruvformigt. Antalet spàr och deras läge beror pà typen av skiva som skall framställas.The groove can be straight but it can also be helical. The number of tracks and their position depend on the type of disc to be produced.

Formen av spàren kan tillverkas pà olika sätt. Det är emellertid viktigt att de har en rundad eller plan form. Storleken skall vara sàdan att skärarbetet väsentligen utförs av det superhàrda materialet. Efter HP/HT-sintring skärs stången i skivor av önskad tjocklek.The shape of the tracks can be made in different ways. However, it is important that they have a rounded or flat shape. The size must be such that the cutting work is essentially performed by the super-hard material. After HP / HT sintering, the bar is cut into slices of the desired thickness.

Alternativt slipas i en eller flera hàrdmetallskivor àtminstone ett spàr och fylls med en pulverblandning innehållande cBN och/eller diamant varefter skivorna behandlas vid en temperatur och tryck där cBN och/eller diamant är stabila. Under denna behandling skiljs skivorna fràn varandra pà ett sådant sätt att de inte sintrar ihop.Alternatively, at least one groove is ground in one or more cemented carbide sheets and filled with a powder mixture containing cBN and / or diamond, after which the sheets are treated at a temperature and pressure where cBN and / or diamond are stable. During this treatment, the discs are separated from each other in such a way that they do not sinter together.

Skaftet 2 är helst tillverkat i hàrdmetall företrädesvis med ett bindefasinnehàll av >l0 wt-%. Diametern av skaftet är nàgot mindre än diametern av skivan med superhärt material. Den andra änden av skaftet är försett med fastspänningsanordningar.The shaft 2 is preferably made of cemented carbide, preferably with a binder phase content of> 10 wt%. The diameter of the shaft is slightly smaller than the diameter of the disc with super-hard material. The other end of the shaft is provided with clamping devices.

PCD/cBN-skivan löds sedan tillsammans med skaftet.The PCD / cBN disc was then soldered together with the shaft.

I en föredragen utföringsform slipas änden av skaftet där PCD/cBN-skivan är lödd ner till form en tapp, 4. är vanligen cylindrisk men den kan alternativt vara konisk, Formen av tappen fyrkantig, triangulär, elliptisk eller annan icke-rund form. 0 av tappen är omkring 15 - 40 o\ Diametern (eller motsvarande) av diametern av skaftet.In a preferred embodiment the end of the shaft is ground where the PCD / cBN disc is soldered down to form a pin, 4. is usually cylindrical but it may alternatively be conical, The shape of the pin is square, triangular, elliptical or other non-round shape. 0 of the pin is about 15 - 40 o \ The diameter (or equivalent) of the diameter of the shaft.

PCD/cBN-skivan löds sedan ihop med skaftet med användning av tappen som styrning och lödfog, 3. Det är enligt uppfinningen väsentligt att lödningen görs endast vid tappen. Detta minimerar risken för lödfogshaveri.The PCD / cBN board is then soldered together with the shaft using the pin as guide and solder joint, 3. According to the invention it is essential that the soldering is done only at the pin. This minimizes the risk of solder joint failure.

Efter lödningen slipas det erhållna verktyget pà ett sàdant sätt att skäreggar bildas av de superhàrda kropparna.After soldering, the resulting tool is ground in such a way that cutting edges are formed by the superhard bodies.

Claims (5)

10 l5 20 25 512 752 3 Kxay10 l5 20 25 512 752 3 Kxay 1. l. Pinnfräs försedd med skäreggar av CBN eller PCD och bestående av en skaftdel och en del innehållande CBN eller PCD lödd till skaftet k ä n n e t e c k n a d av att sagda skaft är försedd med en tapp emot vilken delen innehållande det superhärda materialet är lödda.1. l. Cutters provided with cutting edges of CBN or PCD and consisting of a shaft part and a part containing CBN or PCD soldered to the shaft are characterized in that said shaft is provided with a pin against which the part containing the superhard material is soldered. 2. Pinnfräs enligt föregående krav k ä n n e t e c k n a d av att sagda tapp är rund.Pin milling cutter according to the preceding claim, characterized in that said pin is round. 3. Pinnfräs enligt krav l k ä n n e t e c k n a d av att sagda tapp är konisk.3. A end mill according to claim 1, characterized in that said pin is conical. 4. Pinnfräs enligt krav 1 k ä n n e t e c k n a d av att sagda tapp är av icke-rund form.4. A end mill according to claim 1, characterized in that said pin is of non-round shape. 5. Sätt att tillverka en pinnfräs försedd med åtminstone en skäregg av cBN eller PCD och bestående av en skaftdel och en del innehållande cBN eller PCD k ä n n e t e c k n a t av omfattande stegen förseende en hårdmetallskiva företrädesvis med ett cylindriskt tvärsnitt försedd med åtminstone en kropp av ett superhårt material i ett spår i mantelytan som sträcker sig från en ändyta till den andra lödning av sagda skaftdel till delen innehållande det superhårda materialet med hjälp av en tapp i änden av sagda skaftdel slipning av den erhållna kroppen till att bilda en pinnfräs med skäreggar bildade av superhàrt material.5. A method of manufacturing a end mill provided with at least one cutting edge of cBN or PCD and consisting of a shaft part and a part containing cBN or PCD characterized by comprising the steps providing a cemented carbide disc preferably with a cylindrical cross section provided with at least one body of a superhard material in a groove in the mantle surface extending from one end surface to the other solder of said shank part to the part containing the superhard material by means of a pin at the end of said shank part grinding of the obtained body to form a end mill with cutting edges formed of superhard material.
SE9702297A 1997-06-13 1997-06-13 Ways to make stick cutters SE512752C2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9702297A SE512752C2 (en) 1997-06-13 1997-06-13 Ways to make stick cutters
KR19997011706A KR20010013691A (en) 1997-06-13 1998-06-10 Method of making endmills
CN98806156A CN1260742A (en) 1997-06-13 1998-06-10 Method of making end mills
EP98929975A EP0988125A1 (en) 1997-06-13 1998-06-10 Method of making endmills
PCT/SE1998/001113 WO1998056528A1 (en) 1997-06-13 1998-06-10 Method of making endmills
JP50229099A JP2002504027A (en) 1997-06-13 1998-06-10 End mill manufacturing method
CA002290023A CA2290023A1 (en) 1997-06-13 1998-06-10 Method of making endmills
ZA985147A ZA985147B (en) 1997-06-13 1998-06-12 Method of making endmills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9702297A SE512752C2 (en) 1997-06-13 1997-06-13 Ways to make stick cutters

Publications (3)

Publication Number Publication Date
SE9702297D0 SE9702297D0 (en) 1997-06-13
SE9702297L SE9702297L (en) 1998-12-14
SE512752C2 true SE512752C2 (en) 2000-05-08

Family

ID=20407402

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9702297A SE512752C2 (en) 1997-06-13 1997-06-13 Ways to make stick cutters

Country Status (8)

Country Link
EP (1) EP0988125A1 (en)
JP (1) JP2002504027A (en)
KR (1) KR20010013691A (en)
CN (1) CN1260742A (en)
CA (1) CA2290023A1 (en)
SE (1) SE512752C2 (en)
WO (1) WO1998056528A1 (en)
ZA (1) ZA985147B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100423006B1 (en) * 2001-07-18 2004-03-12 프리시젼다이아몬드 주식회사 A blade manufactureing method of a ball cutter and the blade thereof
DE10159431B4 (en) * 2001-12-04 2005-10-20 Mapal Fab Praezision Tool for finishing surfaces
FR2892326B1 (en) * 2005-10-24 2009-05-08 Sofdiam Soc Par Actions Simpli STRAWBERRY IN TWO PARTS
PL2519378T3 (en) * 2009-12-31 2014-04-30 Diamond Innovations Inc Blank for the manufacture of a machining tool and method of use of a blank for the manufacture of a machining tool
US10040126B2 (en) 2014-06-23 2018-08-07 Sumitomo Electric Hardmetal Corp. Cutting tool and method of manufacturing a cutting tool
CN105458641A (en) * 2016-01-06 2016-04-06 倍兹（上海）精密刀具有限公司 Manufacturing method for integral PCD cutters applied to small-diameter hole manufacturing
CN107952986A (en) * 2016-10-17 2018-04-24 上海精韧激光科技有限公司 For manufacturing the blank and its manufacture method of cutting element
CN108262495A (en) * 2016-12-31 2018-07-10 上海名古屋精密工具股份有限公司 For the blank and its manufacturing method of ultra-hard cutting tool manufacture
KR102249490B1 (en) * 2019-10-18 2021-05-12 한국오에스지 주식회사 Structure of insert for ball end mill

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5031484A (en) * 1990-05-24 1991-07-16 Smith International, Inc. Diamond fluted end mill
ZA963789B (en) * 1995-05-22 1997-01-27 Sandvik Ab Metal cutting inserts having superhard abrasive boedies and methods of making same

Also Published As

Publication number Publication date
CN1260742A (en) 2000-07-19
JP2002504027A (en) 2002-02-05
WO1998056528A1 (en) 1998-12-17
KR20010013691A (en) 2001-02-26
CA2290023A1 (en) 1998-12-17
EP0988125A1 (en) 2000-03-29
SE9702297L (en) 1998-12-14
ZA985147B (en) 1999-01-20
SE9702297D0 (en) 1997-06-13

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