钻刃

The new combination drilling dynameter is developed, which has the characteristics of high accuracy, little interference between forces and simple structure.

研制了测量精度高、相互干扰小、制造简单的新型组合式钻削测力仪和钻削力测量系统，对新刃形钻头的钻削机理进行了实验研究。

Mathematical model for hyperboloid grinding of twist drill and relationships between drill design and grinding parameters are introduced.

介绍了以回转双曲面作为麻花钻后刀面的数学模型，设计参数与刃磨参数的关系。

In the analysis of dynamics cutting angle, the following phenomenon is discovered first time: the minimize of dynamics clearance angle is not monotone decreasing with the vibration frequency , and appear peak value periodically, which exist is the disseparation region and approach the separation region.

在对振动钻削中切削刃上各点的动态角度的分析中，首次发现在振动钻削过程中动态后角的最小值不是随着频率或频转比的增大单调下降，而是周期性的出现波峰值，这些波峰值都出现在不分离区，而且是接近于分离区处，这是由振动钻削过程中的变速特性引起的。

Function relations between the twist drill design and the grinding parameters are derived.

并以尾隙角为补充参数，惟一地确定钻尖的刃磨参数。

This article introduced the 3D modeling method of twist drill in unigraphics according to the principle of taper section sharpening.

根据内圆锥面刃磨原理，介绍了在UG环境下麻花钻的三维建模方法，并利用草图与表达式功能实现麻花钻的参数建模，并且在三维模型基础上进行角度测量与翘尾现象分析。

Whipstock is put down in dense formation of Changlongshan group in Qingbaikou system, entering buried-hill formation by milling cone window sidetracking, oblique reducing, stabilizing and increasing of sidetracking. 152mm whipstock is chosen reasonably in construction cooperated with wireless inclinometer, which brings one-time seating and sealing success. Gabby cemented carbide is optimized as milling cone window sidetracking in 154mm XZ series of main cutting edge, which brings one-time success.

选择在清白口系的长龙山组致密地层(2617m)下入斜向器，使用铣锥开窗侧钻、侧钻降斜、稳斜、增料进入潜山地层，在施工中合理选用152mm斜向器，配合使用无线随钻测斜仪一次坐封成功，优选碎硬质合金作为主切削刃的154mmXZ系列铣锥开窗侧钻一次成功。

It is sharp, wear-resistant, the PDC can be self-sharpening cutting teeth as a cutting edge in low WOB high penetration rate can be,(cone bit higher than 2 times more) and high-footage (cone bit higher than the 4-6 times), applicable to soft - in the hard formation.

它以锋利、耐磨、能自锐的PDC切削齿作为切削刃、在低钻压能获得高钻速、（高于牙轮钻头2倍以上）及高进尺（高于牙轮钻头4-6倍），适用于软-中硬地层。

Detailed inventory of products: turning cutter: 45 degrees higher level of cutter, a 90-degree-angle-cutter, a round-cutter blade, discoid lateral cutter, drill cutter, side cutter, corn cutter blade, 45-degree bevel knives, T slot knife, ball-cutter, ball-cutter, and so on ......

可转位铣刀：45度台阶面铣刀、90度清角面铣刀、圆刃端铣刀、盘状侧铣刀、钻铣刀、端铣刀、玉米刃铣刀、45度倒角刀、T槽刀、球头铣刀、球头铣刀等等。。。。。。

Its most major and most complicated problems are the analysis of drill point mathematical models and drill grinding theory, which is the foundation of drill grinder design.

而各种先进钻型数学模型的建立及刃磨理论的研究是钻头自动化刃磨技术的研究的重点和难点，它是钻头刃磨机设计的理论基础。

It brings automated drill point grinding technique into a new stage.

群钻数学模型的建立是为群钻的数控刃磨提供理论依据。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。