Study on Cutting Characteristics of Sintered Material with Yb: Fiber Laser
Study on Cutting Characteristics of Sintered Material with Yb: Fiber Laser
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镱光纤激光器烧结材料切割特性研究
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
S. Abe
中科院分区：
文献类型：
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作者：
A. Yassin;T. Ueda;A. Hosokawa;T. Furumoto;Ryutaro Tanaka;S. Abe
摘要本研究利用铣削结合雷射烧结系统（MLSS）来制造烧结材料。MLSS是一种使用精细金属粉末与机械加工过程集成的快速模具系统，因此它可以进行精细金属粉末的激光烧结和高速铣削。本文通过测量烧结材料的比切削能和后刀面温度，研究了烧结材料的切削性能。选择碳钢（JIS S55C）作为标准钢。研究了切削条件、激光烧结能量密度、粉末烧结机理和未烧结粉末对该材料切削性能的影响。结果表明，所有烧结材料的刀腹温度均高于JIS S55 C。用于金属粉末固结的低能量密度增加了烧结材料的可加工性。在部分熔融的粉末处切割降低了烧结材料的可加工性。在烧结材料周围存在未烧结金属粉末的情况下进行切削会降低其可加工性。
Abstract In this research, Milling combined Laser Sintering System (MLSS) is used to make a sintered material. MLSS is a rapid tooling system using a fine metallic powder integrated with machining process whereby it can do laser sintering of fine metallic powder and also high-speed milling. This paper deals with the investigation of sintered material machinability by measuring its specific cutting energy and tool flank temperature. Carbon steel (JIS S55C) is selected as a standard steel. The effects of cutting conditions, laser consolidation energy density, powder consolidation mechanisms and unsintered powder on its machinability are measured. It is demonstrated that tool flank temperatures for all sintered materials are higher than JIS S55C. Low energy density for consolidation of metal powder increases the machinability of sintered materials. Cutting at the partially molten powder decreases the machinability of sintered material. Cutting with the existence of unsintered metallic powder surrounding the sintered material diminishes its machinability.