In-situ fabricated TiB2 particle-whisker synergistically toughened Ti(C, N)-based ceramic cutting tool material

A new developed TiN-TiB2 ceramic cutting tool material (marked as TBN5) with high comprehensive mechanical properties was fabricated by the in-situ integration synthesis process. The cutting performance of TBN5 tool in continuously turning the austenitic stainless steel 1Cr18Ni9Ti was experimentally investigated; the failure modes and failure mechanisms of the cutting tool TBN5 were analyzed combined with its mechanical properties. Aiming at the materials removal amount, the optimal cutting parameters of TBN5 tool in turning 1Cr18Ni9Ti were firstly obtained by the orthogonal tests; and then with this cutting parameters, the cutting performance of TBN5 compared to the commercial tools LT55 and SG4 was studied. The results showed that the advanced tool TBN5 could get longer tool life than LT55 and SG4; the main failure modes of TBN5 were flank wear, breakage and the flaking of main cutting edge. The scope of its flaking was smaller and diffusion wear was not obvious, which was related to the higher fracture toughness and the higher thermal conductivity of TBN5.

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Wear behavior of Si3N4 ceramic cutting tool material against stainless steel in dry and water-lubricated conditions

Ceramics International ◽

10.1016/s0272-8842(98)00040-6 ◽

1999 ◽

Vol 25 (4) ◽

pp. 309-315 ◽

Cited By ~ 36

Author(s):

Zhao Xingzhong ◽

Liu Jiajun ◽

Zhu Baoliang ◽

Miao Hezhou ◽

Luo Zhenbi

Keyword(s):

Stainless Steel ◽

Cutting Tool ◽

Wear Behavior ◽

Tool Material ◽

Si3n4 Ceramic ◽

Ceramic Cutting Tool

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Cutting Performance of Al2O3/TiC/TiN Nanocomposite Tools

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.443.318 ◽

2010 ◽

Vol 443 ◽

pp. 318-323 ◽

Cited By ~ 1

Author(s):

Han Lian Liu ◽

Chuan Zhen Huang ◽

Bin Zou

Keyword(s):

High Speed ◽

Cutting Tool ◽

Tool Material ◽

High Hardness ◽

Hardened Steel ◽

Cutting Performance ◽

Machining Parameters ◽

Dry Cutting ◽

Ceramic Cutting Tool ◽

Multi Phase

A multi-scale and multi-phase nanocomposite ceramic cutting tool material Al2O3/TiC/TiN(LTN) with high comprehensive mechanical properties has been successfully fabricated by means of adding micro-scale TiC and nano-scale TiN particles. The cutting performance and wear mechanisms of this advanced ceramic cutting tool were researched by turning two kinds of hardened steel 40Cr and T10A respectively. Compared with the commercial ceramic tool LT55, LTN showed a superior wear resistance with certain machining parameters. The machining tests indicated that the new materials tool is suitable for continuously dry cutting of hardened steel with high hardness at high speed.

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Preparation and Performance of TiC Whisker Toughening Alumina Ceramic Cutting Tool Composite

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.295-297.98 ◽

2011 ◽

Vol 295-297 ◽

pp. 98-102

Author(s):

Jun Sheng Jiang ◽

Chang Chun Wang ◽

Bing Qiang Liu ◽

Chuan Zhen Huang

Keyword(s):

Wear Resistance ◽

Vickers Hardness ◽

Cutting Tool ◽

Adhesive Wear ◽

Cutting Speed ◽

Flexure Strength ◽

Ceramic Cutting Tool ◽

And Performance ◽

Particle Strengthening

A TiC whisker toughening Al2O3-based ceramic cutting tool composite named ATW30 was developed by a two-step in situ synthesis technology. The fracture toughness, flexure strength and Vickers hardness of the composite were 7.63MPa•m1/2, 800MPa and 19.5GPa, respectively. Compared to a (W, Ti)C particle strengthening Al2O3-based ceramic cutting tool composite named SG4, ATW30 was with lower flexure strength and Vickers hardness but much higher flexure strength, and therefore obviously higher wear resistance at either lower or higher cutting speed. The dominant wear mechanism on the flank face of ATW30 is abrasive wear at lower cutting speed and adhesive wear at higher cutting speed. Because of the appearance of the adhesive wear, the wear resistance of ATW30 at higher cutting speed is lower than that of itself at lower cutting speed.

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