Experimental analyses to investigate the feasibility and effectiveness in using heat-pipe embedded end-mills
Experimental analyses to investigate the feasibility and effectiveness in using heat-pipe embedded end-mills
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DOI：
10.1007/s00170-011-3629-3
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发表时间：
2012-02
期刊：
影响因子：
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通讯作者：
Lin Zhu;T. Jen;Cheng-Long Yin;X. Kong;Yi-Hsin Yen
中科院分区：
文献类型：
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作者：
Lin Zhu;T. Jen;Cheng-Long Yin;X. Kong;Yi-Hsin Yen
实验验证了热管冷却技术在立铣加工中的可行性和有效性。其基本思想是在立铣刀的中心嵌入热管，蒸发器靠近刀尖，冷凝器位于刀具端部。因此，立铣刀刀片上产生的大部分热量可以通过热管依靠对流传热快速去除。在数控立式加工中心上进行了三种不同冷却条件下的端铣实验，包括干铣、流体冷却和热管冷却。工件材料为AISI 1040钢，刀具材料选用硬质合金。侧面磨损被认为是工具失效的标准，并且使用Hisomet II Toolmaker显微镜测量磨损。进行测试，直到记录到最大后刀面磨损等于0.30 mm时，端铣刀被拒收。研究结果表明，与制造业普遍采用的流体冷却方式相比，热管辅助立铣刀冷却方式能够有效地进行热管理，提高立铣刀的使用寿命。
This study experimentally verifies the feasibility and effectiveness of heat-pipe cooling in end-milling operations. The basic idea is to embed a heat-pipe at the center of an end-mill with the evaporator close to the tool tip, and the condenser at the tool end. Thus, most of heat generated on the end-mill tip can be quickly removed dependent on convection heat transfer by means of heat-pipe. The end-milling experiments were carried out on a CNC vertical machining center under three different cooling conditions, including dry milling, fluid cooling, and heat-pipe cooling. The work material was AISI 1040 steel, and hard alloy was chosen for the cutting tool material. Flank wear is considered as the criterion for tool failure and the wear was measured using a Hisomet II Toolmaker's microscope. The tests were conducted until the end-mill was rejected when maximum flank wear equal to 0.30 mm was recorded. The results validate that heat-pipe-assisted cooling in end-milling processes can effectively perform thermal management comparable to the fluid cooling used pervasively in the manufacturing industry, increasing the service life of the end-mill.