A numerical approach to the heat transfer in monolithic and SiC reinforced HfB2, ZrB2 and TiB2 ceramic cutting tools

被引：85

作者：

Moghanlou, Farhad Sadegh ^{[1
]}

Vajdi, Mohammad ^{[1
]}

Sha, Jianjun ^{[2
]}

Motallebzadeh, Amir ^{[3
]}

Shokouhimehr, Mohammadreza ^{[4
]}

Asl, Mehdi Shahedi ^{[1
]}

机构：

[1] Univ Mohaghegh Ardabili, Dept Mech Engn, Ardebil, Iran

[2] Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China

[3] Koc Univ, Surface Sci & Technol Ctr, Istanbul, Turkey

[4] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 08826, South Korea

来源：

CERAMICS INTERNATIONAL | 2019年 / 45卷 / 13期

关键词：

Cutting tool; Heat transfer; Numerical method; Ultrahigh temperature ceramics (UHTCs); Finite element method; HOT-PRESSING PARAMETERS; HIGH-TEMPERATURE CERAMICS; MECHANICAL-PROPERTIES; DENSIFICATION BEHAVIOR; ZRB2-BASED COMPOSITES; C-SF; PLASMA; MICROSTRUCTURE; HARDNESS; SIZE;

D O I：

10.1016/j.ceramint.2019.05.095

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Cutting tools are widely used in industry and must be hard enough for machining processes, which should work appropriately at low temperatures to improve cutting speed and productivity. In this research, a numerical method was employed to calculate the temperature distribution in the cutting tools made of different diborides. Monolithic and SiC reinforced HfB2, ZrB2 and TiB2 ceramics were selected for investigation and comparison studies. In this regard, 3-dimensional heat conduction equation was solved in a cutting tool with radiative, convective and heat flux boundary conditions by finite element method using COMSOL Multiphysics. This study clarifies that the maximum temperature in the tools made of ZrB2 and TiB2 among the monolithic ceramics is lower than that of HfB2. Moreover, the temperature variation slope versus time is the highest in HfB2. All composite materials reinforced with SiC showed lower maximum temperature than the monolithic ones. The thermal performance of TiB2-SiC and ZrB2-SiC composites was acquired to be better than that of the other investigated materials. The dominant heat transfer mechanism in the cutting tools was conduction.

引用

页码：15892 / 15897

页数：6

共 61 条

[21] Lathe turning of titanium using pulsed laser deposited, ultra-hard boride coatings of carbide inserts [J].