Experimental Determination of Temperature of Synthetic Diamond Cutters when Cutting Rock

人造金刚石刀具可以显着改善岩石钻探 在某些切削条件下的操作，但在一个关键的表面 钻头的效率急剧下降。 是 我认为这种现象与机械性能的下降有关。 随着刀具温度的升高而增加的强度。 在 研究表明，刀具表面附近的温度将 当花岗岩圆柱体在车床上使用一个单独的 钻石切割机 安装在工具中的热电偶将提供 温度作为切削参数（速度，冷却速率， 后刀面磨损），并将与力测量从三维 测力计 以前开发的有限元代码将 用来解释温度测量，和实验 日期将用于验证代码的预测能力。 成功完成研究计划将允许设计 实地测试，这反过来又可以导致一个战略，监测和 控制井下刀具温度。 这将有利于 在加快钻井作业的同时影响钻头寿命， 从而为敌对地区的深层油藏节省了大量资金， 地点

Synthetic diamond cutters can significantly improve rock drilling operations under some cutting conditions, but at a critical surface speed the effectiveness of the drill drops off precipitously. It is felt that this phenomena is associated with the decrease in mechanical strength which accompanies an increase in cutter temperature. In the research proposed the temperature near the cutter surface will be measured when granite cylinders are turned in a lathe using a single diamond cutter. Thermocouples mounted in the tool will provide the temperature as a function of cutting parameters (speed, cooling rate, flank wear), and will be correlated with force measurements from a 3-D force dynamometer. A previously developed finite element code will be used to interpret the temperature measurements, and the experimental date will be used to validate the code's predictive ability. Successful completion of the research plan will permit the design of field tests, which in turn could lead to a strategy for monitoring and controlling the down-hole cutter temperature. This would favorably impact the drill life while speeding the well drilling operation, resulting in significant savings for deep oil reservoirs in hostile locations.