WO2001053052A1 - A tool for working stone surfaces - Google Patents
A tool for working stone surfaces Download PDFInfo
- Publication number
- WO2001053052A1 WO2001053052A1 PCT/EP2000/008609 EP0008609W WO0153052A1 WO 2001053052 A1 WO2001053052 A1 WO 2001053052A1 EP 0008609 W EP0008609 W EP 0008609W WO 0153052 A1 WO0153052 A1 WO 0153052A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool according
- insert
- tool
- hard metal
- end portion
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
- B28D1/186—Tools therefor, e.g. having exchangeable cutter bits
Definitions
- the invention concerns a tool for surface working stone materials, such as granite, marble and the like. It -is known that in order to engrave signs such as inscriptions and ornaments in general on stone materials, there are employed, among others, rotary tools known as burins, controlled by numerically controlled milling machines. Said known tools are generally obtained through inserts with a single cutting edge made of hard metal or ceramic material, depending on the hardness and workability of the stone material to be worked.
- Another object of the invention is to provide a tool of the type mentioned above, which maintains its cutting properties for a longer time.
- an increase in wear resistance is obtained along with a significant increase in the rotation and advancing speeds due to the greater amount of material removed in the time unit.
- FIG. 1 is a front view of a tool equipped in its upper part with a cutting plate according to the invention, the rear view being a replica of said
- - Fig. 2 is a side view of the tool shown in Fig. 1;
- - Fig. 3 is a detailed front view of the cutting plate according to the invention, the rear view being a replica of said Figure;
- Fig. 4 is a side view of the plate shown in Fig. 3;
- the tool according to the invention comprises a cylindrical body 1 shaped for mounting on the spindle of a milling machine for surface working stone materials such as granite and marble.
- the tool body 1 is equipped with a plate insert 3, brazed onto the tool tip and consisting of an element 5 of polycrystalline diamond (PCD) sandwiched between two elements 7 of hard metal.
- PCD polycrystalline diamond
- Said insert 3 obtained by means of electrical discharge machining, has a central portion 5, in PCD diamond, protruding upwards and laterally from the hard metal elements 7.
- the upper part 9 of said body 1 is cylindrical, with lower diameter than body 1, and ends in a portion
- tip of insert 3 is suitably inclined, depending on the material being worked, the inclination ranging from 30° to 60° with respect to the axis of tool ⁇ :
- PCD element 5 projecting from hard metal elements 7 are of particular importance. Actually, the projecting portions of PCD element 5 form a double and symmetrical cutting edge arranged along chords B-B' and C-C of the insert, and not along diameter A-A', as would be the case for the single cutting edge.
- the provision of the double symmetrical cutting edge allows obtaining a considerable advantage in terms of working rate over the insert with single cutting edge of the prior art.
- chords B-B' and C-C ' allow obtaining a negative apparent front rake, such that the cutting edges are substantially submitted to a compressive stress in place of a bending stress.
- the PCD projections of element 5 must be sufficiently long to carry out a valuable abrasion work, but they must be at the same time sufficiently short to avoid breakage due to bending stresses during working of the stone material.
- the amount of upward projection of PCD elements 5 with respect to the two hard metal elements 7 is of the order of 1 mm, while the amount of diagonal projection of said element 5 with respect to the two elements 7 is of the order of 2 mm.
- the maximum amount of projection of hard metal elements 7 with respect to the upper base of portion 11 holding the insert 3 is of the order of 1.5 - 2 mm.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2000276496A AU2000276496A1 (en) | 2000-01-20 | 2000-09-01 | A tool for working stone surfaces |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00830030.3 | 2000-01-20 | ||
EP00830030A EP1118441A1 (en) | 2000-01-20 | 2000-01-20 | A tool for working stone surfaces with a cutting insert having polycrystalline diamond sandwiched between two hard metal layers |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001053052A1 true WO2001053052A1 (en) | 2001-07-26 |
Family
ID=8175136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/008609 WO2001053052A1 (en) | 2000-01-20 | 2000-09-01 | A tool for working stone surfaces |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1118441A1 (en) |
AU (1) | AU2000276496A1 (en) |
WO (1) | WO2001053052A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112976357A (en) * | 2021-02-23 | 2021-06-18 | 南京航空航天大学 | Milling cutter for fiber-reinforced ceramic matrix composite and manufacturing method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103934906B (en) * | 2013-01-23 | 2016-04-13 | 厦门钨业股份有限公司 | Be exclusively used in miniature superhard brill milling cutter and the processing method thereof of processing ceramic material |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60127912A (en) * | 1983-12-15 | 1985-07-08 | Asahi Daiyamondo Kogyo Kk | Rotary cutting tool of small diameter |
US4627503A (en) * | 1983-08-12 | 1986-12-09 | Megadiamond Industries, Inc. | Multiple layer polycrystalline diamond compact |
US5443337A (en) * | 1993-07-02 | 1995-08-22 | Katayama; Ichiro | Sintered diamond drill bits and method of making |
-
2000
- 2000-01-20 EP EP00830030A patent/EP1118441A1/en not_active Withdrawn
- 2000-09-01 AU AU2000276496A patent/AU2000276496A1/en not_active Abandoned
- 2000-09-01 WO PCT/EP2000/008609 patent/WO2001053052A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4627503A (en) * | 1983-08-12 | 1986-12-09 | Megadiamond Industries, Inc. | Multiple layer polycrystalline diamond compact |
JPS60127912A (en) * | 1983-12-15 | 1985-07-08 | Asahi Daiyamondo Kogyo Kk | Rotary cutting tool of small diameter |
US5443337A (en) * | 1993-07-02 | 1995-08-22 | Katayama; Ichiro | Sintered diamond drill bits and method of making |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 009, no. 286 (M - 429) 13 November 1985 (1985-11-13) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112976357A (en) * | 2021-02-23 | 2021-06-18 | 南京航空航天大学 | Milling cutter for fiber-reinforced ceramic matrix composite and manufacturing method thereof |
Also Published As
Publication number | Publication date |
---|---|
EP1118441A1 (en) | 2001-07-25 |
AU2000276496A1 (en) | 2001-07-31 |
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