Wear Characteristics of Ceramic Tools When Turning BN Free-Machining Steel
Wear Characteristics of Ceramic Tools When Turning BN Free-Machining Steel
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DOI：
10.1299/jamdsm.7.474
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发表时间：
2013
影响因子：
0.9
通讯作者：
Ryutaro Tanaka;A. Hosokawa;T. Furumoto;T. Ueda
中科院分区：
文献类型：
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作者：
Ryutaro Tanaka;A. Hosokawa;T. Furumoto;T. Ueda
本研究以AISI 1045为基准，探讨陶瓷刀具在车削BN易切削钢时的磨损特性。进行了一个实验，以研究为什么氧化铝TiC基陶瓷刀具显示出显着优于纯氧化铝陶瓷刀具的切削性能。研究了后刀面温度、切削力和磨损部位的元素分布。BN易切削钢的切削力和刀具后刀面温度低于标准钢，氧化铝TiC基陶瓷刀具允许比纯氧化铝陶瓷刀具更低的切削力和刀具后刀面温度。BN易切削钢切削后，在前刀面上检测到一层含Al和N的沉积层，且Al 2 O3-TiC基陶瓷刀具上的沉积层数量多于纯Al 2 O3陶瓷刀具上的沉积层数量。因此，使用氧化铝TiC基陶瓷刀具可抑制刀具后刀面温度，使保护性氮化物层更容易粘附在磨损部件上，结果，其具有明显优于氧化铝陶瓷刀具的上级刀具耐磨性。
This study examined the wear characteristics of ceramic tools when turning BN free-machining steel based on AISI 1045. An experiment was conducted to investigate why the alumina TiC-based ceramic tool showed remarkably better cutting performance than a pure alumina ceramic tool. The tool flank temperature, cutting force, and element distribution on the wear part were investigated. The cutting force and tool flank temperature of the BN free-machining steel were lower than those of standard steel, and the alumina TiC-based ceramic tool allowed for a lower cutting force and tool flank temperature than the pure alumina ceramic tool. After cutting of the BN free-machining steel, on the rake face, a deposited layer containing Al and N was detected, and the amount of the deposited layer on the alumina TiC-based ceramic tool was more than that on the pure alumina ceramic tool. Therefore, using an alumina TiC-based ceramic tool suppresses the tool flank temperature and makes it easier for a protective nitride layer to stick on the wear part; as a result, it has a clearly superior tool wear resistance than an alumina ceramic tool.