刀具

At present, Beijing Machine Tool Co., Ltd. is a universal tool and cutter grinder major manufacturers in each instrument can produce various specifications of universal grinding machine and related equipmentòmany sets, is also currently producing the largest drill bit grinder grinding to 120mm can be one of the manufacturers.

目前，北平机床有限公司是万能工具及刀具磨床主要的生产厂商，每年可生产各种规格万能工具磨床及相关机具壹万多台套，也是目前生产钻头磨床最大可研磨至120mm的厂商之一。

In order to improve drilling efficiency, scientific researchers in the world make much study on the structure parameters and geometry shape of drill point.

钻头是孔加工的主要刀具，在机械制造业中占重要地位，传统的麻花钻在生产上被广泛使用。

I produced the whole grinding high speed steel straight shank twist drill drill head copper series, drill steel series, drilling stainless steel series, parabolic drill (deep-hole drilling) series, carbide straight shank twist drill , high-speed steel red needles (red steel series, aluminum series red, red stainless steel series), round tools, kinds of non-standard, complex tools, cutting tools.

我公司生产全磨制高速钢直柄麻花钻头，硬质合金直柄麻花钻，高速钢冲针(冲钢系列，冲铝系列，冲不锈钢系列)，圆车刀，各种非标，复杂刀具，刃具。

It also elaborates on the reasonable choices of the geometric parameters and cutting parameters of the cutting tool materials, cutting tools to ream, drill and mill high strength steel and super-high strength steel.

在选择切削速度时，在工件材料的强度和硬度较高的情况下，应适当降低切削速度，减小刀具每齿进给量，按工件材料的强度选择铣削速度，按工件材料的硬度选择铣削用量。

The company has developed its own processing center, numerical control drilling machine, precision tool-specific processing equipment.

本公司拥有自己研制加工中心、数控钻床、刀具专用精密加工设备。

In this paper an innovative method for machining sculptured surfaces is presented. By using a disc cutter with a concave end instead of traditional ball-ended or drum-shaped tools, and adjusting the cut- ted axis to swing relative to the component being machined under some special rules, the envelope formed by the trace of the tool-nose may have the same derivative up to the third order as the required theoretical surface.

本文提出了一种加工自由曲面的新方法，即采用中凹的盘形铣刀取代传统的球头或鼓形铣刀，在每一行程中让刀具轴线相对于工件按特定的规律摆动，使得在垂直于进给方向的法截面中，由刀尖轨迹形成的包络面与理论曲面的法截线具有相同的1～3阶导数，从而在保持精度不变的前提下，使实际行程次数得以大幅度的减少。

In order to improve properties of shrub chipper and the quality of shrub chip, some factors influencing Salix end-grain cutting,such as rake angle,cutting thickness and moisture content of wood to be cutted were studied.

为了明确影响灌木材端向切削力的主要因素，改进削片机性能，提高灌木材削片质量，笔者研究了不同刀具前角、切削厚度和不同含水率对沙柳材端向切削力的影响。

The experiments have been performed in an engine lathe. The tool working orthogonal rake could be adjusted by a step motor according to the time varying parameters selected.

试验在普通车床上进行，刀具工作前角由微机通过步进电机按规定的时变参数控制。

These cemented carbides have bright future of application in aiguilles and ceramic tools.

热机械合金化制备的WC-Co硬质合金在钻井钻头、刀具领域具有广阔的应用前景。

The lab is focused on the new material science and engineering like diamond film to develop new and high-tech products, sucha as diamond filmed knives and aiguilles.

研究重点是：采用直流弧光放电等离子体化学气相沉积法技术与设备，开展金刚石薄膜等新材料科学与工程研究，开发金刚石涂膜刀具、钻具与设备等高新技术产品。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新