Novel pretreatment of hard metal substrate for better performance of diamond coated cutting tools

被引：0

作者：

Lu, FX ^{[1
]}

Tang, WZ ^{[1
]}

Miao, JQ ^{[1
]}

He, LF ^{[1
]}

Li, CM ^{[1
]}

Chen, GC ^{[1
]}

机构：

[1] Beijing Univ Sci & Technol, Beijing 100083, Peoples R China

来源：

14TH CONGRESS OF INTERNATIONAL FEDERATION FOR HEAT TREATMENT AND SURFACE ENGINEERING, VOLS 1 AND 2, PROCEEDINGS | 2004年

关键词：

diamond-coated cutting tools; pre-treatment; nano-micro crystalline composite diamond coating;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A surface engineering approach for a novel pre-treatment of hard metal tool substrate for optimum adhesion of diamond coatings is presented. Firstly, an alkaline solution was used to etch the WC grains to generate a rough surface for better mechanical interlocking. Subsequently, surface Co was removed by etching in acid solution. Then the hard metal substrate was boronized to form a compound interlayer which acted as an efficient diffusion barrier to prevent the outward diffusion of Co. Novel nano-microcrystalline composite diamond film coatings with a very smooth surface was deposited on the surface engineering pre-treated hard metal surface. Promising results of measurement in adhesion strength as well as field cutting tests have been obtained.

引用

页码：35 / 40

页数：6

共 14 条

[11] APPLICATION OF DIAMOND FILMS FROM CO-H2 PLASMA TO TOOL BLADE COATING [J].

SAITO, Y ;

SATO, K ;

MATUDA, S ;

KOINUMA, H .

JOURNAL OF MATERIALS SCIENCE, 1991, 26 (11) :2937-2940

[12] A comparison in performance of diamond coated cemented carbide cutting tools with and without a boride interlayer [J].

Tang, W ;

Wang, Q ;

Wang, S ;

Lu, R .

SURFACE & COATINGS TECHNOLOGY, 2002, 153 (2-3) :298-303

[13] Adherent diamond coatings on cemented carbide substrates with different cobalt contents [J].

Tang, W ;

Wang, Q ;

Wang, S ;

Lu, F .

[14] Preparation and performance of diamond coatings on cemented carbide inserts with cobalt boride interlayers [J].

Tang, W ;

Wang, S ;

Lu, F .

← 1 2 →