硬质合金涂层刀具铣削堆焊合金试验研究  

Experimental Study on Carbide Coated Tools Milling Surfacing Alloy

作　　者：尹亮[1] 赵红瑞 李海豹 YIN Liang;ZHAO Hong-rui;LI Hai-bao(Baotou Vocational and Technical College,Inner Mongolia Baotou 014030,China;China North Group Inner Mongolia North Heavy Industry Group Co.,Ltd.,Inner Mongolia Baotou 014030,China;Inner Mongolia Institute of Metal Materials,Inner Mongolia Baotou 014030,China)

机构地区：[1]包头职业技术学院,内蒙古包头014030 [2]中国兵器集团内蒙古北方重工业集团有限公司,内蒙古包头014030 [3]内蒙金属材料研究所,内蒙古包头014030

出　　处：《机械设计与制造》2024年第10期230-234,241,共6页Machinery Design & Manufacture

基　　金：APMT 1604PDER型硬质合金涂层刀具铣削稀土Cr-Ni-W堆焊合金的试验研究,包头职业技术学院(KJ202002)。

摘　　要：对试验堆焊合金合理加工参数与涂层刀具磨损机制进行了分析。采用逆变直流焊机与特制的含稀土药皮耐磨堆焊焊条在试板表面进行堆焊焊接,采用数控铣床分组加工试验堆焊合金,分别对堆焊层进行了成分检测与金相组织分析,对试验用APMT1604PDER型硬质合金涂层刀具进行了金相分析、电镜形貌观测以及能谱分析,研究了不同参数及加工量条件下刀具涂层与内部基体铣削表面特征以及磨损分析。数控铣床采用4齿刀盘时,相同每齿进给量试验堆焊合金材料的合理加工参数为Vc:0.085r/min,ft:≤0.05mm/min,ap:≤0.2mm。试验刀具的表面涂层为AlTiN类型,刀具基体材料主要为500nm~2μm不规则碳化钴、碳化钨合金粉末组成;试验刀具的失效形式:初期为磨粒磨损,中期与后期以黏结磨损与扩散磨损为主。The reasonable machining parameters and coating tool wear mechanism of the experimental surfacing alloy were analyzed.Adopt inverter dc welding machine and special hardfacing electrode containing rare earth,surfacing welding was carried out on the surface of the test plate,with CNC milling machine grouping processing surfacing welding alloy of surfacing welding layer,respectively,component testing and microstructure analysis,the test with APMT1604PDER cemented carbide coating tools for the metallographic analysis and electron microscopy morphology observation and energy spectrum analysis,The milling surface characteristics and wear analysis of cutter coating and internal matrix under different parameters and processing amount were studied.When 4 tooth cutters are used in CNC milling machine,the reasonable processing parameters of the test surfacing of alloy material with the same feed per tooth are n:400r/min,VF:≤80mm/min,ap:≤0.2mm.The surface coating of the test tool was AlTiN type,and the tool matrix material was mainly composed of irregular cobalt carbide and tungsten carbide alloy powder of 500nm~2μm.The failure modes of the test tool are:abrasive wear in the early stage,bonding wear and diffusion wear in the middle and late stage.

关 键 词：铣削 涂层 刀具 堆焊 组织 磨损机制 

分 类 号：TH16[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]