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首页> 外文期刊>Acta biomaterialia >The use of cutting temperature to evaluate the machinability of titanium alloys.
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The use of cutting temperature to evaluate the machinability of titanium alloys.

机译：使用切削温度来评估钛合金的可加工性。

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摘要

This study investigated the machinability of titanium, two commercial titanium alloys (Ti-6Al-4V and Ti-6Al-7Nb) and free-cutting brass using the cutting temperature. The cutting temperature was estimated by measuring the thermal electromotive force of the tool-workpiece thermocouple during cutting. The thermoelectric power of each metal relative to the tool had previously been determined. The metals were slotted using a milling machine and carbide square end mills under four cutting conditions. The cutting temperatures of Ti-6Al-4V and Ti-6Al-7Nb were significantly higher than that of the titanium, while that of the free-cutting brass was lower. This result coincided with the relationship of the magnitude of the cutting forces measured in a previous study. For each metal, the cutting temperature became higher when the depth of cut or the cutting speed and feed increased. The increase in the cutting speed and feed was more influential on the value than the increase in the depth of cut when two cutting conditions with the same removal rates were compared. The results demonstrated that cutting temperature measurement can be utilized to develop a new material for dental CAD/CAM applications and to optimize the cutting conditions.
机译：本研究使用切削温度研究了钛，两种商用钛合金（Ti-6Al-4V和Ti-6Al-7Nb）和易切削黄铜的切削性能。通过测量切削过程中工具工件热电偶的热电动势来估算切削温度。先前已经确定了每种金属相对于工具的热电功率。使用铣床和硬质合金方铣刀在四种切削条件下对金属进行开槽。 Ti-6Al-4V和Ti-6Al-7Nb的切削温度明显高于钛，而易切削黄铜的切削温度更低。该结果与先前研究中测得的切削力大小的关系一致。对于每种金属，当切削深度或切削速度和进给量增加时，切削温度会升高。当比较两种具有相同去除率的切削条件时，切削速度和进给量的增加比切削深度的增加对数值的影响更大。结果表明，切削温度测量可用于开发用于牙科CAD / CAM应用的新材料并优化切削条件。

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