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Coating tool

A tool and coating technology, applied in the direction of manufacturing tools, drilling accessories, sputtering coating, etc., can solve the problems of easy chipping of cutting edges, high hardness and high

Inactive Publication Date: 2004-01-28
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In the technology of Japanese Patent Application Publication No.H08-118106, (Ti 1-x Si x )(C 1-y N y ) z The downside of high hardness is the problem created by its extreme brittleness, where the cutting edge tends to splinter if used in a machine tool - especially when used in intermittent cuts

Method used

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0054] Embodiments of the present invention will be explained in the following description.

[0055] The coated tools described below were fabricated and verified for wear resistance.

Embodiment approach 1(1

[0056] Embodiment 1 (1) making of test sample

[0057] i. Products of the present invention: test samples 1-1 to 1-8

[0058] First, the film deposition equipment used in this test will be described. Refer to Figure 3A - a schematic diagram of the film deposition apparatus used in this test, and Figure 3B - a cross-sectional view through B-B in Figure 3A. The film deposition apparatus is in a chamber 12 equipped with: a main table 13 on which a substrate 19 is mounted, the main table being rotatably mounted on a supporting column 14; arc evaporation sources 15a, 15b and 15c along the chamber 12 The walls are arranged to surround the substrate 19; the DC power supply 16a, 16b (not shown) and 16c are connected to the evaporation sources 15a, 15b and 15c as variable power supplies; the DC power supply 17 is connected to the main workbench 13; A gas inlet 18 for gas supply; and an exhaust hole 18' for exhaust.

[0059]The chamber 12 is connected to a vacuum pump (not shown), an...

Embodiment approach 2

[0081] Coatings were prepared on the respective substrate reamers (JIS K10 cemented carbide) in the same manufacturing method as in Embodiment 1, and test samples 2-1 to 2-6 were manufactured. Test sample 2-1 was formed with the same intermediate layer and coating film as in test sample 1-1 described above. As for Test Sample 2-2, the substrate surface was coated with a 1 µm TiSiN film on which the same coating film as that of the above-mentioned Test Sample 1-1 was formed. As for Test Sample 2-3, a 1 µm TiAlN film was coated on the substrate surface, on which the same coating film as that of Test Sample 1-1 above was formed. As for Test Samples 2-4 to 2-6, the same intermediate layer and coating film as those of the above-mentioned Test Samples 1-9 to 1-11 were formed on the substrates, respectively.

[0082] Use test samples 2-1 to 2-6 to carry out drilling operations on gray iron (FC 250), and evaluate the service life of each sample. The parameters of processing conditio...

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Abstract

Coating-film furnished coated tools that are lubricative while maintaining resistance to wear are realized by coated tools in which a plurality of coating films is furnished on a base part. Furnished as the coating are one or more layers of, respectively: a first film composed of one compound selected from nitrides, carbides, carbonitrides, oxynitrides and carboxynitrides of TiSi; and a second film composed of one compound selected from nitrides, carbides, carbonitrides, oxynitrides and carboxynitrides of one metal M selected from Ti, Cr, and TiCr. The first film and the second film are laminated in alternation.

Description

technical field [0001] The present invention relates to coated tools, which are tools with a multilayer coating arranged at the base, such as drills, end mills, gradable milling pads, gradable turning pads, metal grooving saws, Gear cutting tool, reamer or screw tap. In particular, the invention relates to coated tools equipped with multilayer coating films which provide lubrication while maintaining wear resistance. Background technique [0002] On the surface of the base composed of WC-based sintered carbides, cermets or high-speed steels, a single or multi-layer hard film composed of carbides, nitrides or carbonitrides or titanium aluminides of titanium, hafnium, zirconium is formed, It is now known to improve the wear resistance and surface protection of machine tools and wear-resistant tools. [0003] However, the recent trend, as listed below, is towards higher tool cutting edge temperatures in machining and stricter requirements on the properties of the tool. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B27/14B23B51/00C23C14/00C23C14/06C23C14/32B23C5/16C23C30/00
CPCC23C14/325C23C14/0635C23C14/0664C23C14/0641C23C30/005Y10T428/252Y10T428/24975Y10T428/265C23C14/00
Inventor 福井治世山县一夫津田圭一今村晋也
Owner SUMITOMO ELECTRIC IND LTD
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