淬硬钢GCr15高速切削仿真对比分析

 赵成喜1,赵书强1,刘国雨2

(1.大连海洋大学 应用技术学院,辽宁 大连 116300;2.瓦房店冶金轴承集团有限公司,辽宁 大连 116300)
摘要:针对淬硬钢 GCr15 难切削问题,应用专业仿真切削软件对比模拟分析了PCBN和Al2O3(3Y)两种刀具二维切削状态下的切削性能。在相同的刀具几何参数和干式切削加工条件下,两种刀具的X向切削力基本相同,Al2O3(3Y)刀具的Y向切削力较大,切削力波动情况明显大于PCBN刀具,刀头等效应力最大值分布范围较大,且主要集中在刀具的后刀面靠近主切削刃处。Al2O3(3Y)刀具切削温度明显高于PCBN刀具,高温分布区域较大且主要集中在前刀面靠近切削刃处。研究结果表明,PCBN刀具与Al2O3(3Y)刀具相比,更适合淬硬轴承钢GCr15的干式切削加工。 
关键词:GCrl5;Al3O2(3Y);PCBN;切削仿真
中图分类号:TP391.9 文献标志码:A doi:10.3969/j.issn.1006-0316.2019.01.008
文章编号:1006-0316 (2019) 01-0036-05
Comparison and Analysis of GCr15 High Speed cutting Simulation for Hardened Steel
ZHAO Chengxi1,ZHAO Shuqiang1,LIU Guoyu2
( 1.College of Applied Technology, Dalian Ocean University, Dalian 116300, China;2.Wafangdian Metallurgical Bearing Group Limited, Dalian 116300, China )
Abstract:Aiming at the difficult cutting problem of hardened steel GCr15, the cutting performance of PCBN and Al2O3(3Y) cutting tools under two dimensional cutting conditions was analyzed by using professional cutting simulation software. Under the same geometric parameters and dry cutting conditions, the X-direction cutting force of the two kinds of cutting tools is basically the same as that of Al2O3(3Y) cutting tools, and the Y-direction cutting forces of the two kinds of cutting tools are larger, and the fluctuation of cutting forces is obviously greater than that of PCBN tools. The maximum equivalent stress of the cutter head is distributed in a large range, and is mainly concentrated on the cutting surface of the tool near the main cutting edge. Al2O3 (3Y) cutting tool The cutting temperature is obviously higher than that of PCBN tool, and the high temperature distribution area is large and the cutting surface is mainly near the cutting edge. The results show that Al2O3(3Y) tool is more suitable for high speed dry cutting of quenched bearing steel GCr15 than that of Al2O3(3Y) tool.
Key words:GCrl5;Al3O2(3Y);PCBN;Cutting simulation
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收稿日期:2018-08-13
基金项目:大连海洋大学应用技术学院2017年科研项目(XNKY201702)
作者简介:赵成喜(1978-),男,吉林白山人,硕士,讲师,主要研究方向为现代制造技术及方法。
 

 

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