Through drilling experiment in 156 adjustment Wells, the drilling behaviors, cutter wear, downhole jet flow field and drilling effect of drag bits and roller ones were comparatively analyzed.
通过156口调整井钻井试验，对比分析了刮刀钻头和牙轮钻头的钻进特性、牙齿磨损特性、井底流场特性及钻井效果。
According to the characteristic of high speed face milling process, the model of stress field of high speed face milling cutter is established on the dependability analysis.
高速可转位面铣刀是一种高速铣刀，在高速锐削过程中，刀具内部应力场的分布直接影响到刀具的可靠性和铣削性能川。
The utility model relates to a milling cutter for railway vehicle brake head, which belongs to the technical field of the milling cutter.
本实用新型涉及一种铁路车辆闸瓦托专用铣刀，属于铣刀技术领域。
The field use shows that the service life of the cutter is increased.
现场使用表明，刀具使用寿命成倍提高。
The postprocessing technique is an important field in the UG CAM, the main mission is to make the cutter location source file that is created by CAM the acceptable numeric control document.
后处理技术是UGCAM中一个重要环节，其主要任务是把CAM软件生成的加工刀位源文件转换成机床可接受的数控代码文件。
The automatic cutter-drawing machinery is an ideal processing tool in the field of the mechanical process and is particularly applicable to the plane milling of the combined machine tool.
该自动让刀机构是机械加工领域的一种较理想的加工工具，特别适用于组合机床的平面铣削。
The utility model relates to a multi-cutter filament breaking combined machine, which belongs to the technical field of shearing equipment.
本实用新型涉及一种多刀断丝组合机，属于剪切设备技术领域。
The invention relates to a longitudinal toggling mechanism of a rape cutter-rower, which belongs to the technical field of agricultural machinery.
本发明涉及一种油菜割晒机纵向拨动机构，属于农业机械技术领域。
The invention relates to a longitudinal toggling mechanism of a rape cutter-rower, which belongs to the technical field of agricultural machinery.
本发明涉及一种油菜割晒机纵向拨动机构，属于农业机械技术领域。
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