DE8803812U1 - Solid carbide contour cutters - Google Patents
Solid carbide contour cuttersInfo
- Publication number
- DE8803812U1 DE8803812U1 DE8803812U DE8803812U DE8803812U1 DE 8803812 U1 DE8803812 U1 DE 8803812U1 DE 8803812 U DE8803812 U DE 8803812U DE 8803812 U DE8803812 U DE 8803812U DE 8803812 U1 DE8803812 U1 DE 8803812U1
- Authority
- DE
- Germany
- Prior art keywords
- cutting
- tool
- angle
- cutting edge
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007787 solid Substances 0.000 title description 2
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims 1
- 238000003801 milling Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
- B23C2210/0407—Cutting angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/08—Side or top views of the cutting edge
- B23C2210/088—Cutting edges with a wave form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/32—Details of teeth
- B23C2210/326—File like cutting teeth, e.g. the teeth of cutting burrs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Description
I I · « · H &Lgr; &Lgr; II · « · H &Lgr;&Lgr;
I &igr; I I · · I · · >I &igr; I I · · I · · >
18. März 1988March 18, 1988
HARTMETALLWERKZEUGFABR!K ANDREAS MAIER GMBH+CO KQ Stegwiesen 2HARD METAL TOOL FACTORY ANDREAS MAIER GMBH+CO KQ Stegwiesen 2
0-7959 Sshwendi-Hörenhausen0-7959 Sshwendi-Hörenhausen
Dip Erfindung betrifft ein spanabhebendes Werkzeug, mit einem zylindrischen Schaft und einem Schneidenteil mit Kreuzverzahnung (Diamantverzahnunq) mit einer Schneidengeometrie insbesondere für die Bearbeitung von glasfaserverstärkten Leiterplatten.Dip invention relates to a cutting tool with a cylindrical shaft and a cutting part with cross toothing (diamond toothing) with a cutting geometry in particular for the processing of glass fiber reinforced circuit boards.
Die bekannten Konturenfräser bestehen üblicherweise aus Voll hartmetall mit pyramidenähnlicher Zahnform und einem Durchmesser von ca. 0,8 bis 3 mm. Die Einsatzdauer bzw. der Standweg des Werkzeuges wird im wesentlichen von der Beschaffenheit des zu bearbeitenden Werkstoffes, von der Schneidengeometrie der einzelnen Schneiden, vom Schneidstoff des Werkzeuges sowie von der Lagerung der Arbeitsspindel bestimmt.The well-known contour milling cutters are usually made of solid carbide with a pyramid-like tooth shape and a diameter of approx. 0.8 to 3 mm. The service life or tool life of the tool is essentially determined by the nature of the material to be machined, the cutting geometry of the individual cutting edges, the cutting material of the tool and the bearing of the work spindle.
Häufig wird in der Praxis die Einsatzdauer des Fräswerkzeuges, insbesondere bei kleinen Durchmessern, durch Werkzeugbruch begrenzt. Dies tritt hauptsächlich dann auf, wenn durch zu hohe Schnittkräfte das für den Schneidstoff maximal zulässige Biegmoment überschritten wird.In practice, the service life of the milling tool is often limited by tool breakage, especially with small diameters. This mainly occurs when the maximum permissible bending moment for the cutting material is exceeded due to excessive cutting forces.
Der Erfindung liegt nun die Aufgabe zugrunde, Konturenfräser zu schaffen, deren Schneidengeometrie die Schnittkräfte auf ein Minimum reduzieren. Ause-ehend von einem Konturenfräser der bisher bekannten Art wird die Aufgabe durch die kennzeichnenden Merkmale der Ansprüche 1, 2 und 3 bzw. 1, 2 und 4 gelöst.The invention is based on the object of creating contour milling cutters, whose cutting geometry reduces the cutting forces to a minimum. Starting from a contour milling cutter of the previously known type, the object is solved by the characterizing features of claims 1, 2 and 3 or 1, 2 and 4.
Die daraus resultierende Schneidengeometrie führt zu einer wesentlichen Verringerung der Schnittkräfte sowie zu einem verbesserten SpanabflußThe resulting cutting geometry leads to a significant reduction in cutting forces and improved chip removal
und damit zu einem geringeren Biegemoment am Werkzeug.and thus to a lower bending moment on the tool.
Der Radiusmittelpunkt M für die Freifläche liegt in einem Bereich, der einerseits durch ·£ 1 = 9° und o£2 = 14° und andererseits durch den Radius rl - 0,450 und rl = 0,55D um die Schneide begrenzt wird. Die Spanfläche wird durch einen Radius von Rs = 0,1D - 0.14D unter einem Spanwinkel/"= 2° - 8° begrenzt.The radius center M for the flank lies in an area which is limited on the one hand by ·£ 1 = 9° and o£2 = 14° and on the other hand by the radius rl - 0.450 and rl = 0.55D around the cutting edge. The chip surface is limited by a radius of Rs = 0.1D - 0.14D at a chip angle /" = 2° - 8°.
Fig. 2 zeigt einen erfindungsgemäßen Konturenfräser in der Seitenansicht mit dem Spanwinkel &Lgr; der Hauptschneide und dem Winkel/<? unter dem die Spanbrechernut zur Werkzeugachse verläuft.Fig. 2 shows a contour milling cutter according to the invention in side view with the rake angle Λ of the main cutting edge and the angle /<? at which the chip breaker groove runs to the tool axis.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8803812U DE8803812U1 (en) | 1988-03-21 | 1988-03-21 | Solid carbide contour cutters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8803812U DE8803812U1 (en) | 1988-03-21 | 1988-03-21 | Solid carbide contour cutters |
Publications (1)
Publication Number | Publication Date |
---|---|
DE8803812U1 true DE8803812U1 (en) | 1988-09-01 |
Family
ID=6822118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8803812U Expired DE8803812U1 (en) | 1988-03-21 | 1988-03-21 | Solid carbide contour cutters |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE8803812U1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3833204A1 (en) * | 1988-09-30 | 1990-04-05 | Hawera Praezisionswerkzeuge | CONTOUR MILLING |
EP0456253A1 (en) * | 1990-05-11 | 1991-11-13 | Mitsubishi Materials Corporation | End mill |
US5188488A (en) * | 1990-05-11 | 1993-02-23 | Mitsubishi Materials Corporation | End mill |
DE102017112827A1 (en) * | 2017-06-12 | 2018-12-13 | Kohnle GmbH | Milling tool for machining fiber-reinforced materials |
-
1988
- 1988-03-21 DE DE8803812U patent/DE8803812U1/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3833204A1 (en) * | 1988-09-30 | 1990-04-05 | Hawera Praezisionswerkzeuge | CONTOUR MILLING |
US4990035A (en) * | 1988-09-30 | 1991-02-05 | Hawera Prazisionswerkzeuge Gmbh | Contour milling cutter |
EP0456253A1 (en) * | 1990-05-11 | 1991-11-13 | Mitsubishi Materials Corporation | End mill |
US5188488A (en) * | 1990-05-11 | 1993-02-23 | Mitsubishi Materials Corporation | End mill |
DE102017112827A1 (en) * | 2017-06-12 | 2018-12-13 | Kohnle GmbH | Milling tool for machining fiber-reinforced materials |
DE102017112827B4 (en) | 2017-06-12 | 2022-08-11 | Kohnle GmbH | Milling tool for processing fiber-reinforced materials |
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